LMP91200

正在供貨

適用于低功耗 pH 傳感應(yīng)用的集成 AFE

產(chǎn)品詳情

Number of input channels 1 Features Current Sources (iDACs), PGA Operating temperature range (°C) -40 to 125 Vs (min) (V) 1.8 Vs (max) (V) 6 Interface type Serial SPI Rating Catalog
Number of input channels 1 Features Current Sources (iDACs), PGA Operating temperature range (°C) -40 to 125 Vs (min) (V) 1.8 Vs (max) (V) 6 Interface type Serial SPI Rating Catalog
TSSOP (PW) 16 32 mm2 5 x 6.4
  • Active Guarding
  • Key Specifications
    Unless otherwise noted, typical values at
    TA = 25°C, VS = (VDD-GND) = 3.3 V
    • pH Buffer Input Bias Current (0 < VINP < 3.3 V)
      • Maximum at 25°C: ±125 fA
      • Maximum at 85°C: ±445 fA
    • pH Buffer Input Bias Current
      (–500 mV < VINP– VCM < 500 mV),
      VS = (VDD – GND) = 0 V
      • Maximum at 25°C: ±600 fA
      • Maximum at 85°C: ±6.5 pA
    • pH Buffer Input Offset Voltage: ±200 μV
    • pH Buffer Input Offset Voltage Drift: ±2.5 μV/°C
    • Supply Current: 50 μA
    • Supply Voltage: 1.8 V to 5.5 V
    • Operating Temperature Range: –40°C to 125°C
    • Package: 16-Pin TSSOP
  • Active Guarding
  • Key Specifications
    Unless otherwise noted, typical values at
    TA = 25°C, VS = (VDD-GND) = 3.3 V
    • pH Buffer Input Bias Current (0 < VINP < 3.3 V)
      • Maximum at 25°C: ±125 fA
      • Maximum at 85°C: ±445 fA
    • pH Buffer Input Bias Current
      (–500 mV < VINP– VCM < 500 mV),
      VS = (VDD – GND) = 0 V
      • Maximum at 25°C: ±600 fA
      • Maximum at 85°C: ±6.5 pA
    • pH Buffer Input Offset Voltage: ±200 μV
    • pH Buffer Input Offset Voltage Drift: ±2.5 μV/°C
    • Supply Current: 50 μA
    • Supply Voltage: 1.8 V to 5.5 V
    • Operating Temperature Range: –40°C to 125°C
    • Package: 16-Pin TSSOP

The LMP91200 device is a sensor AFE for use in low-power, analytical-sensing applications. The LMP91200 is designed for 2-electrode sensors. This device provides all of the functionality needed to detect changes based on a delta voltage at the sensor. Optimized for low-power applications, the LMP91200 works over a voltage range of 1.8 V to 5.5 V. With its extremely low input bias current it is optimized for use with pH sensors. Also, in absence of supply voltage the very low input bias current reduces degradation of the pH probe when connected to the LMP91200. Two guard pins provide support for high parasitic impedance wiring. Depending on the configuration, total current consumption for the device is 50 µA while measuring pH. Available in a 16-pin TSSOP package, the LMP91200 operates from –40°C to +125°C.

The LMP91200 device is a sensor AFE for use in low-power, analytical-sensing applications. The LMP91200 is designed for 2-electrode sensors. This device provides all of the functionality needed to detect changes based on a delta voltage at the sensor. Optimized for low-power applications, the LMP91200 works over a voltage range of 1.8 V to 5.5 V. With its extremely low input bias current it is optimized for use with pH sensors. Also, in absence of supply voltage the very low input bias current reduces degradation of the pH probe when connected to the LMP91200. Two guard pins provide support for high parasitic impedance wiring. Depending on the configuration, total current consumption for the device is 50 µA while measuring pH. Available in a 16-pin TSSOP package, the LMP91200 operates from –40°C to +125°C.
下載 觀看帶字幕的視頻 視頻

技術(shù)文檔

star =有關(guān)此產(chǎn)品的 TI 精選熱門(mén)文檔
未找到結(jié)果。請(qǐng)清除搜索并重試。
查看全部 4
頂層文檔 類(lèi)型 標(biāo)題 格式選項(xiàng) 下載最新的英語(yǔ)版本 日期
* 數(shù)據(jù)表 LMP91200 Configurable AFE for Low Power Chemical Sensing Apps 數(shù)據(jù)表 (Rev. E) 2016年 2月 29日
技術(shù)文章 What can we learn for IIoT from the man who invented the Web? PDF | HTML 2016年 1月 12日
應(yīng)用手冊(cè) AN-2254 MSP430 Interface to LMP91200 Code Library (Rev. A) 2013年 5月 1日
更多文獻(xiàn)資料 傳感器模擬前端手冊(cè) 2012年 10月 30日

設(shè)計(jì)與開(kāi)發(fā)

如需其他信息或資源，請(qǐng)點(diǎn)擊以下任一標(biāo)題進(jìn)入詳情頁(yè)面查看（如有）。

驅(qū)動(dòng)程序或庫(kù)

SNAC044 — Associated Files for Application Note MSP430 Interface to LMP91200 Code Library

支持的產(chǎn)品和硬件

支持的產(chǎn)品和硬件
仿真模型

LMP91200 PSpice Transient Model (Rev. A)

SNAM129A.ZIP (25 KB) - PSpice Model
下載
仿真模型

LMP91200 TINA-TI Reference Design

SNAM130.TSC (395 KB) - TINA-TI Reference Design
下載
仿真模型

LMP91200 TINA-TI Transient Spice Model (Rev. A)

SNAM131A.ZIP (54 KB) - TINA-TI Spice Model
下載
參考設(shè)計(jì)

TIDA-00561 — 無(wú)線 pH 傳感器發(fā)送器（兼容 SensorTag 2.0）參考設(shè)計(jì)

TIDA-00561 展示了如何構(gòu)建用于過(guò)程控制的工業(yè)級(jí)無(wú)線 pH 變送器。該參考設(shè)計(jì)包括一個(gè)精心設(shè)計(jì)的 pH 前端，可通過(guò)其板載連接器直接連接到過(guò)程控制中使用的大多數(shù) pH 探針。性能數(shù)據(jù)經(jīng)過(guò)測(cè)試和表征（輸入范圍 0 至 14pH，整體測(cè)試精度 +/- 0.01pH），可確保滿(mǎn)足過(guò)程儀表的需求。

由于 TIDA-00561 外形尺寸和電氣連接與 TI SimpleLink? CC2650 SensorTag 生態(tài)系統(tǒng)兼容，因此只需進(jìn)行簡(jiǎn)單的固件更新，即可選擇無(wú)線連接技術(shù)：Bluetooth? 智能、ZigBee? 或 (...)

設(shè)計(jì)指南: PDF
原理圖: PDF
封裝 引腳 CAD 符號(hào)、封裝和 3D 模型
TSSOP (PW) 16 Ultra Librarian

訂購(gòu)和質(zhì)量

包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)識(shí)
  • 引腳鍍層/焊球材料
  • MSL 等級(jí)/回流焊峰值溫度
  • MTBF/時(shí)基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測(cè)
包含信息：
  • 制造廠地點(diǎn)
  • 封裝廠地點(diǎn)

推薦產(chǎn)品可能包含與 TI 此產(chǎn)品相關(guān)的參數(shù)、評(píng)估模塊或參考設(shè)計(jì)。

支持和培訓(xùn)

可獲得 TI 工程師技術(shù)支持的 TI E2E? 論壇

所有內(nèi)容均由 TI 和社區(qū)貢獻(xiàn)者按“原樣”提供，并不構(gòu)成 TI 規(guī)范。請(qǐng)參閱使用條款。

如果您對(duì)質(zhì)量、包裝或訂購(gòu) TI 產(chǎn)品有疑問(wèn)，請(qǐng)參閱 TI 支持。??????????????

視頻