{"id":2614,"date":"2024-11-06T10:49:29","date_gmt":"2024-11-06T02:49:29","guid":{"rendered":"https:\/\/www.siproin-ic.com\/?p=2614"},"modified":"2024-11-06T11:20:02","modified_gmt":"2024-11-06T03:20:02","slug":"application-of-24-bit-analog-to-digital-converter-ssp1220-in-monocrystalline-silicon-differential-pressure-sensor","status":"publish","type":"post","link":"https:\/\/www.siproin-ic.com\/fr\/application-of-24-bit-analog-to-digital-converter-ssp1220-in-monocrystalline-silicon-differential-pressure-sensor\/","title":{"rendered":"Application du convertisseur analogique-num\u00e9rique 24 bits SSP1220 dans un capteur de pression diff\u00e9rentielle au silicium monocristallin"},"content":{"rendered":"<p><span style=\"color: #000000;\">Introduction au capteur de pression diff\u00e9rentielle<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Un capteur de pression diff\u00e9rentielle est un type de capteur largement utilis\u00e9 dans l'ing\u00e9nierie, l'industrie et la science pour mesurer la diff\u00e9rence entre deux pressions.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-2615 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72471-221x300.png\" alt=\"\" width=\"221\" height=\"300\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72471-221x300.png 221w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72471-9x12.png 9w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72471.png 233w\" sizes=\"(max-width: 221px) 100vw, 221px\" \/><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">\uff08Capteur de pression\uff09<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Son principe de fonctionnement est bas\u00e9 sur la relation entre pression et pression.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Un capteur de pression diff\u00e9rentielle se compose g\u00e9n\u00e9ralement de deux canaux d'entr\u00e9e connect\u00e9s au milieu mesur\u00e9 pour mesurer la pression \u00e0 deux endroits diff\u00e9rents du milieu mesur\u00e9. Les deux canaux peuvent \u00eatre s\u00e9par\u00e9s ou reli\u00e9s par une membrane ou un tuyau.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Lorsque la pression dans le fluide mesur\u00e9 est diff\u00e9rente, la pression dans les deux canaux sera \u00e9galement diff\u00e9rente. Le capteur de pression diff\u00e9rentielle mesure la diff\u00e9rence de pression dans les deux canaux et la convertit en une sortie \u00e9lectrique correspondante.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Les capteurs de pression diff\u00e9rentielle couramment utilis\u00e9s sont les capteurs pi\u00e9zo\u00e9lectriques bas\u00e9s sur l'effet pi\u00e9zo\u00e9lectrique et les capteurs \u00e0 r\u00e9sistance bas\u00e9s sur l'effet de r\u00e9sistance.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Les capteurs de pression diff\u00e9rentielle pi\u00e9zo\u00e9lectriques tirent parti des propri\u00e9t\u00e9s des mat\u00e9riaux pi\u00e9zo\u00e9lectriques, qui g\u00e9n\u00e8rent des charges \u00e9lectriques lorsqu'une pression est appliqu\u00e9e au milieu mesur\u00e9. Apr\u00e8s amplification et conversion, ce signal de charge peut \u00eatre utilis\u00e9 comme signal de sortie du capteur de pression diff\u00e9rentielle.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Les capteurs de pression diff\u00e9rentielle r\u00e9sistifs utilisent les variations de r\u00e9sistance pour mesurer la pression diff\u00e9rentielle. L'un des capteurs de pression diff\u00e9rentielle r\u00e9sistifs les plus courants est bas\u00e9 sur une structure de film m\u00e9tallique. Lorsque la pression est appliqu\u00e9e au fluide mesur\u00e9, le film m\u00e9tallique se d\u00e9forme et modifie la valeur de la r\u00e9sistance.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">En mesurant la variation de la valeur de la r\u00e9sistance, le signal de sortie du capteur de pression diff\u00e9rentielle peut \u00eatre obtenu. Les capteurs de pression diff\u00e9rentielle ont g\u00e9n\u00e9ralement une grande pr\u00e9cision, une r\u00e9ponse rapide et une large plage de mesure. Ils peuvent \u00eatre largement utilis\u00e9s dans la mesure de la diff\u00e9rence de pression des gaz, des liquides et des solides, comme la mesure de la pression m\u00e9t\u00e9orologique, la mesure du niveau de liquide, la mesure de la vitesse du vent, etc.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><strong>Dans l'industrie des basses temp\u00e9ratures, le capteur de pression diff\u00e9rentielle peut \u00eatre utilis\u00e9 pour d\u00e9tecter le niveau de liquide dans le r\u00e9servoir de stockage, comme le montre la figure de droite, en conduisant un conduit jusqu'\u00e0 la phase liquide du capteur au fond du r\u00e9servoir, puis en conduisant un tube jusqu'\u00e0 la phase gazeuse au sommet, selon la formule de pression :<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-2616 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72472-300x172.png\" alt=\"\" width=\"300\" height=\"172\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72472-300x172.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72472-18x10.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72472.png 314w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\"><strong>p=\u03c1gh<\/strong><strong>\uff0c\u0394p = Pa-Pb= \u0394h\u03c1g,<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Ainsi, la hauteur H peut \u00eatre calcul\u00e9e \u00e0 partir de la densit\u00e9 ou convertie en colonne d'eau millim\u00e9trique correspondante.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Si l'on prend l'exemple des produits du fabricant X, le circuit utilis\u00e9 \u00e0 l'int\u00e9rieur est un circuit \u00e0 pont de r\u00e9sistance, et sa plage de tension de sortie est de 60-160mv, la plage correspondante est de 0-20Kpa, et chaque PASCAL correspond \u00e0 5\u03bcV.<\/span><\/p>\n<p><span style=\"color: #000000;\">Le sch\u00e9ma de c\u00e2blage est le suivant :<\/span><\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-2617 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72473.png\" alt=\"\" width=\"247\" height=\"188\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72473.png 247w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72473-16x12.png 16w\" sizes=\"(max-width: 247px) 100vw, 247px\" \/><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">\uff08Wiring diagram\uff09 (sch\u00e9ma de c\u00e2blage)<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Ici, nous utilisons un CAN 24 bits SSP1220 pour collecter les donn\u00e9es de tension, puis les convertir en niveau de liquide correspondant.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><strong>Introduction au SSP1220<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Le SSP1220 est un convertisseur analogique-num\u00e9rique de pr\u00e9cision \u00e0 24 bits d\u00e9velopp\u00e9 et con\u00e7u par Siproin Microelectronics. Il pr\u00e9sente les caract\u00e9ristiques suivantes :<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Deux entr\u00e9es diff\u00e9rentielles ou quatre entr\u00e9es asym\u00e9triques,<\/span><\/li>\n<li><span style=\"color: #000000;\">Un amplificateur de gain programmable (PGA) \u00e0 faible bruit,<\/span><\/li>\n<li><span style=\"color: #000000;\">Deux sources de courant d'excitation programmables,<\/span><\/li>\n<li><span style=\"color: #000000;\">Une r\u00e9f\u00e9rence de tension, un oscillateur,<\/span><\/li>\n<li><span style=\"color: #000000;\">Un interrupteur \u00e0 bascule et un capteur de temp\u00e9rature de pr\u00e9cision.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Le SSP1220 est capable d'effectuer des conversions \u00e0 des taux d'\u00e9chantillonnage allant jusqu'\u00e0 2k SPS et est stable \u00e0 l'int\u00e9rieur d'un seul cycle. Pour les applications industrielles dans des environnements bruyants, le filtre num\u00e9rique permet de rejeter les 50Hz et 60Hz \u00e0 une fr\u00e9quence d'\u00e9chantillonnage de 20SPS.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Le PGA interne offre un gain allant jusqu'\u00e0 128V\/V. Ceci rend le SSP1220 id\u00e9al pour les applications de mesure de signaux de petits capteurs tels que les d\u00e9tecteurs de temp\u00e9rature r\u00e9sistifs (RTDS), les thermocouples, les thermistances et les capteurs \u00e0 pont r\u00e9sistif. Le SSP1220 supporte la mesure de signaux pseudo-diff\u00e9rentiels ou totalement diff\u00e9rentiels lors de l'utilisation du PGA, et peut \u00e9galement \u00eatre configur\u00e9 pour d\u00e9sactiver le PGA interne, fonctionnant en mode cycle de travail avec le PGA d\u00e9sactiv\u00e9 avec une consommation d'\u00e9nergie aussi faible que 120\u00b5A.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Le bo\u00eetier SSP1220 Thin Small Form Factor (TSSOP)-16 est con\u00e7u pour une plage de temp\u00e9rature de fonctionnement allant de -40\u00b0C \u00e0 +125\u00b0C.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-2619 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72474.png\" alt=\"\" width=\"283\" height=\"186\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72474.png 283w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72474-18x12.png 18w\" sizes=\"(max-width: 283px) 100vw, 283px\" \/><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">\uff08SSP1220 pin diagram\uff09 (diagramme des broches)<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Le SSP1220 communique avec le contr\u00f4leur par l'interm\u00e9diaire du SPI. Le contr\u00f4leur travaille en mode actif et la puce en mode esclave. Le SSP1220 ne fonctionne qu'en mode 1, c'est-\u00e0-dire que CPOL est \u00e0 0 et CPHA \u00e0 1. <strong>(Les autres modes ne sont pas pris en charge)<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">En mode SPI 1, le SCLK reste bas dans l'\u00e9tat d'inactivit\u00e9 et les donn\u00e9es sont transmises ou modifi\u00e9es uniquement sur le front montant du SCLK. Le dispositif ma\u00eetre et le dispositif esclave verrouillent ou lisent les donn\u00e9es sur le front descendant du SCLK. Les exigences de synchronisation SPI sont les suivantes :<\/span><\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-2620 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72475-300x94.png\" alt=\"\" width=\"300\" height=\"94\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72475-300x94.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72475-18x6.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72475.png 554w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">\uff08Exigences de synchronisation de l'interface s\u00e9rie\uff09<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><strong>Conception du circuit de r\u00e9f\u00e9rence<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><strong>1.Syst\u00e8me d'alimentation, tension d'entr\u00e9e 3,6-5,5V, ici utilisation d'un LDO directement abaisseur \u00e0 3V, la tension de r\u00e9f\u00e9rence est externe 2,5V.<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-2621 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72476-300x233.png\" alt=\"\" width=\"300\" height=\"233\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72476-300x233.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72476-15x12.png 15w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72476.png 353w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">\uff08Sch\u00e9ma du syst\u00e8me d'alimentation \u00e9lectrique\uff09<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><strong>2. circuit d'\u00e9chantillonnage SSP1220<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-2622 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72477-300x115.png\" alt=\"\" width=\"300\" height=\"115\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72477-300x115.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72477-18x7.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72477.png 554w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">(Sch\u00e9ma d'\u00e9chantillonnage du SSP1220)<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-2623 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72473-1.png\" alt=\"\" width=\"247\" height=\"188\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72473-1.png 247w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72473-1-16x12.png 16w\" sizes=\"(max-width: 247px) 100vw, 247px\" \/><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">\uff08Wiring diagram\uff09 (sch\u00e9ma de c\u00e2blage)<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><span style=\"color: #000000;\">V+ connect\u00e9 au bras de pont sup\u00e9rieur B+ ;<\/span><\/li>\n<li><span style=\"color: #000000;\">V- pour abaisser le bras de pont B- ;<\/span><\/li>\n<li><span style=\"color: #000000;\">S+ est connect\u00e9 \u00e0 l'entr\u00e9e diff\u00e9rentielle haute ;<\/span><\/li>\n<li><span style=\"color: #000000;\">S- se connecte \u00e0 l'extr\u00e9mit\u00e9 inf\u00e9rieure de l'entr\u00e9e diff\u00e9rentielle ;<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><strong>3.<\/strong><strong>MCU et circuit 485, nous convertissons les donn\u00e9es en sortie 485.<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-2624 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72478-300x198.png\" alt=\"\" width=\"300\" height=\"198\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72478-300x198.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72478-18x12.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72478.png 554w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">\uff08485 circuit diagram\uff09<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><strong>4.<\/strong><strong>Donn\u00e9es d'essai r\u00e9elles<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Test\u00e9 dans la pratique\uff1a<\/span><\/p>\n<table>\n<tbody>\n<tr style=\"height: 92px;\">\n<td style=\"width: 21.3094%; text-align: center; background-color: #3399ff; height: 92px;\" width=\"170\"><span style=\"color: #000000;\"><strong>Valeur de la pression diff\u00e9rentielle<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>\uff08Kpa\uff09<\/strong><\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; background-color: #3399ff; height: 92px;\" width=\"113\"><span style=\"color: #000000;\"><strong>Valeur de la tension<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>\uff08\u03bcV\uff09<\/strong><\/span><\/td>\n<td style=\"width: 13.4788%; text-align: center; background-color: #3399ff; height: 92px;\" width=\"104\"><span style=\"color: #000000;\"><strong>Valeur mesur\u00e9e <\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>\uff08\u03bcV\uff09<\/strong><\/span><\/td>\n<td style=\"width: 20.2824%; text-align: center; background-color: #3399ff; height: 92px;\" width=\"161\"><span style=\"color: #000000;\"><strong>Valeur de la pression diff\u00e9rentielle<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>\uff08Kpa\uff09<\/strong><\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; background-color: #3399ff; height: 92px;\" width=\"113\"><span style=\"color: #000000;\"><strong>Valeur de la tension<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>\uff08\u03bcV\uff09<\/strong><\/span><\/td>\n<td style=\"width: 67.5225%; text-align: center; background-color: #3399ff; height: 92px;\" width=\"113\"><span style=\"color: #000000;\"><strong>Valeur mesur\u00e9e <\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>\uff08\u03bcV\uff09<\/strong><\/span><\/td>\n<\/tr>\n<tr style=\"height: 52px;\">\n<td style=\"width: 21.3094%; text-align: center; height: 52px;\" width=\"170\"><span style=\"color: #000000;\">0<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">60000<\/span><\/td>\n<td style=\"width: 13.4788%; text-align: center; height: 52px;\" width=\"104\"><span style=\"color: #000000;\">61130<\/span><\/td>\n<td style=\"width: 20.2824%; text-align: center; height: 52px;\" width=\"161\"><span style=\"color: #000000;\">10<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">110000<\/span><\/td>\n<td style=\"width: 67.5225%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">111142<\/span><\/td>\n<\/tr>\n<tr style=\"height: 52px;\">\n<td style=\"width: 21.3094%; text-align: center; height: 52px;\" width=\"170\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">65000<\/span><\/td>\n<td style=\"width: 13.4788%; text-align: center; height: 52px;\" width=\"104\"><span style=\"color: #000000;\">66140<\/span><\/td>\n<td style=\"width: 20.2824%; text-align: center; height: 52px;\" width=\"161\"><span style=\"color: #000000;\">11<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">115000<\/span><\/td>\n<td style=\"width: 67.5225%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">116151<\/span><\/td>\n<\/tr>\n<tr style=\"height: 52px;\">\n<td style=\"width: 21.3094%; text-align: center; height: 52px;\" width=\"170\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">70000<\/span><\/td>\n<td style=\"width: 13.4788%; text-align: center; height: 52px;\" width=\"104\"><span style=\"color: #000000;\">71127<\/span><\/td>\n<td style=\"width: 20.2824%; text-align: center; height: 52px;\" width=\"161\"><span style=\"color: #000000;\">12<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">120000<\/span><\/td>\n<td style=\"width: 67.5225%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">121158<\/span><\/td>\n<\/tr>\n<tr style=\"height: 52px;\">\n<td style=\"width: 21.3094%; text-align: center; height: 52px;\" width=\"170\"><span style=\"color: #000000;\">3<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">75000<\/span><\/td>\n<td style=\"width: 13.4788%; text-align: center; height: 52px;\" width=\"104\"><span style=\"color: #000000;\">76142<\/span><\/td>\n<td style=\"width: 20.2824%; text-align: center; height: 52px;\" width=\"161\"><span style=\"color: #000000;\">13<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">125000<\/span><\/td>\n<td style=\"width: 67.5225%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">126149<\/span><\/td>\n<\/tr>\n<tr style=\"height: 52px;\">\n<td style=\"width: 21.3094%; text-align: center; height: 52px;\" width=\"170\"><span style=\"color: #000000;\">4<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">80000<\/span><\/td>\n<td style=\"width: 13.4788%; text-align: center; height: 52px;\" width=\"104\"><span style=\"color: #000000;\">81143<\/span><\/td>\n<td style=\"width: 20.2824%; text-align: center; height: 52px;\" width=\"161\"><span style=\"color: #000000;\">14<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">130000<\/span><\/td>\n<td style=\"width: 67.5225%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">131161<\/span><\/td>\n<\/tr>\n<tr style=\"height: 52px;\">\n<td style=\"width: 21.3094%; text-align: center; height: 52px;\" width=\"170\"><span style=\"color: #000000;\">5<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">85000<\/span><\/td>\n<td style=\"width: 13.4788%; text-align: center; height: 52px;\" width=\"104\"><span style=\"color: #000000;\">86144<\/span><\/td>\n<td style=\"width: 20.2824%; text-align: center; height: 52px;\" width=\"161\"><span style=\"color: #000000;\">15<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">135000<\/span><\/td>\n<td style=\"width: 67.5225%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">136149<\/span><\/td>\n<\/tr>\n<tr style=\"height: 52px;\">\n<td style=\"width: 21.3094%; text-align: center; height: 52px;\" width=\"170\"><span style=\"color: #000000;\">6<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">90000<\/span><\/td>\n<td style=\"width: 13.4788%; text-align: center; height: 52px;\" width=\"104\"><span style=\"color: #000000;\">91137<\/span><\/td>\n<td style=\"width: 20.2824%; text-align: center; height: 52px;\" width=\"161\"><span style=\"color: #000000;\">16<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">140000<\/span><\/td>\n<td style=\"width: 67.5225%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">141175<\/span><\/td>\n<\/tr>\n<tr style=\"height: 52px;\">\n<td style=\"width: 21.3094%; text-align: center; height: 52px;\" width=\"170\"><span style=\"color: #000000;\">7<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">95000<\/span><\/td>\n<td style=\"width: 13.4788%; text-align: center; height: 52px;\" width=\"104\"><span style=\"color: #000000;\">96131<\/span><\/td>\n<td style=\"width: 20.2824%; text-align: center; height: 52px;\" width=\"161\"><span style=\"color: #000000;\">17<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">145000<\/span><\/td>\n<td style=\"width: 67.5225%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">146162<\/span><\/td>\n<\/tr>\n<tr style=\"height: 52px;\">\n<td style=\"width: 21.3094%; text-align: center; height: 52px;\" width=\"170\"><span style=\"color: #000000;\">8<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">100000<\/span><\/td>\n<td style=\"width: 13.4788%; text-align: center; height: 52px;\" width=\"104\"><span style=\"color: #000000;\">101139<\/span><\/td>\n<td style=\"width: 20.2824%; text-align: center; height: 52px;\" width=\"161\"><span style=\"color: #000000;\">18<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">150000<\/span><\/td>\n<td style=\"width: 67.5225%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">151151<\/span><\/td>\n<\/tr>\n<tr style=\"height: 52px;\">\n<td style=\"width: 21.3094%; text-align: center; height: 52px;\" width=\"170\"><span style=\"color: #000000;\">9<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">105000<\/span><\/td>\n<td style=\"width: 13.4788%; text-align: center; height: 52px;\" width=\"104\"><span style=\"color: #000000;\">106128<\/span><\/td>\n<td style=\"width: 20.2824%; text-align: center; height: 52px;\" width=\"161\"><span style=\"color: #000000;\">19<\/span><\/td>\n<td style=\"width: 14.249%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">155000<\/span><\/td>\n<td style=\"width: 67.5225%; text-align: center; height: 52px;\" width=\"113\"><span style=\"color: #000000;\">156152<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">Afin d'atteindre la meilleure pr\u00e9cision, nous utilisons le taux minimum d'\u00e9chantillonnage de 20SPS, vous pouvez voir une fluctuation d'environ 10\u03bcV \u00e0 la position de 100\u03bcV, en fait peut d\u00e9j\u00e0 r\u00e9pondre aux exigences de pr\u00e9cision.<\/span><\/p>\n<p><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-2625 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72479-300x221.png\" alt=\"\" width=\"300\" height=\"221\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72479-300x221.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72479-16x12.png 16w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/\u56fe\u72479.png 401w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Le SSP1220 est un convertisseur analogique-num\u00e9rique de pr\u00e9cision \u00e0 24 bits d\u00e9velopp\u00e9 et con\u00e7u par Siproin Microelectronics. Le SSP1220 est capable d'effectuer des conversions \u00e0 des taux d'\u00e9chantillonnage allant jusqu'\u00e0 2k SPS et est stable \u00e0 l'int\u00e9rieur d'un seul cycle. Pour les applications industrielles dans des environnements bruyants, le filtre num\u00e9rique permet de rejeter les 50Hz et 60Hz \u00e0 une fr\u00e9quence d'\u00e9chantillonnage de 20SPS.<\/p>","protected":false},"author":8,"featured_media":2618,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[62],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/posts\/2614"}],"collection":[{"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/comments?post=2614"}],"version-history":[{"count":0,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/posts\/2614\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/media\/2618"}],"wp:attachment":[{"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/media?parent=2614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/categories?post=2614"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siproin-ic.com\/fr\/wp-json\/wp\/v2\/tags?post=2614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}