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LMP91000中文资料

厂家型号

LMP91000

文件大小

856.24Kbytes

页面数量

35

功能描述

LMP91000 Sensor AFE System: Configurable AFE Potentiostat for Low-Power Chemical- Sensing Applications

Sensor AFE

数据手册

原厂下载下载地址一下载地址二到原厂下载

生产厂商

TI2

LMP91000数据手册规格书PDF详情

1 Features

1• Typical Values, TA = 25°C

• Supply Voltage 2.7 V to 5.25 V

• Supply Current (Average Over Time) <10 μA

• Cell Conditioning Current Up to 10 mA

• Reference Electrode Bias Current (85°C) 900pA

(max)

• Output Drive Current 750 μA

• Complete Potentiostat Circuit-to-Interface to Most

Chemical Cells

• Programmable Cell Bias Voltage

• Low-Bias Voltage Drift

• Programmable TIA gain 2.75 kΩ to 350 kΩ

• Sink and Source Capability

• I2C Compatible Digital Interface

• Ambient Operating Temperature –40°C to 85°C

• Package 14-Pin WSON

• Supported by WEBENCH® Sensor AFE Designer

2 Applications

• Chemical Species Identification

• Amperometric Applications

• Electrochemical Blood Glucose Meter

3 Description

The LMP91000 is a programmable analog front-end

(AFE) for use in micro-power electrochemical sensing applications. It provides a complete signal path

solution between a sensor and a microcontroller that

generates an output voltage proportional to the cell

current. The LMP91000’s programmability enables it

to support multiple electrochemical sensors such as 3-lead toxic gas sensors and 2-lead galvanic cell

sensors with a single design as opposed to the

multiple discrete solutions. The LMP91000 supports

gas sensitivities over a range of 0.5 nA/ppm to 9500

nA/ppm. It also allows for an easy conversion of current ranges from 5 μA to 750 μA full scale.

The LMP91000’s adjustable cell bias and transimpedance amplifier (TIA) gain are

programmable through the I2C interface. The I2C

interface can also be used for sensor diagnostics. An

integrated temperature sensor can be read by the user through the VOUT pin and used to provide

additional signal correction in the μC or monitored to

verify temperature conditions at the sensor.

The LMP91000 is optimized for micro-power applications and operates over a voltage range of 2.7

to 5.25 V. The total current consumption can be less

than 10 μA. Further power savings are possible by

switching off the TIA amplifier and shorting the

reference electrode to the working electrode with an

internal switch.

LMP91000产品属性

  • 类型

    描述

  • 型号

    LMP91000

  • 制造商

    TI

  • 制造商全称

    Texas Instruments

  • 功能描述

    Sensor AFE

  • System

    Configurable AFE Potentiostat for Low-Power Chemical Sensing Applications

更新时间:2025-10-20 15:11:00
供应商 型号 品牌 批号 封装 库存 备注 价格
24+
SOP8
6000
美国德州仪器TEXASINSTRUMENTS原厂代理辉华拓展内地现
TI
21+
深圳原装现货
1400
TI(德州仪器)
WSON-14(4x4)
26
编带适用于低功耗电化学电池监测的可配置 AFE 恒电位
TI(德州仪器)
24+
标准封装
7648
原厂直销,大量现货库存,交期快。价格优,支持账期
TI/德州仪器
25+
QFN
32360
TI/德州仪器全新特价LMP91000SDX/NOPB即刻询购立享优惠#长期有货
TI
24+
WSON14
5630
TI一级代理原厂授权渠道实单支持
TI
15+
WSON14
32500
全新原装现货供应2
TI
2021+
WSON14
9450
原装现货。
TI(德州仪器)
23+
原厂封装
32078
10年以上分销商,原装进口件,服务型企业
TI/德州仪器
21+
WSON-14
22800
只做原装,质量保证

LMP91000SDX/NOPB 价格

参考价格:¥25.7332

型号:LMP91000SDX/NOPB 品牌:Texas Instruments 备注:这里有LMP91000多少钱,2025年最近7天走势,今日出价,今日竞价,LMP91000批发/采购报价,LMP91000行情走势销售排排榜,LMP91000报价。

LMP91000相关电子新闻

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    进口代理

    2023-7-10
  • LMP91000-传感器的AFE系统-配置低功耗化学传感应用的AFE电位

    LMP91000:传感器的AFE系统:配置低功耗化学传感应用的AFE电位 LMP91000是一个可编程的模拟前端(AFE)在使用微功率电化学传感应用。 它提供了一个完整的传感器之间的信号路径解决方案和一个微控制器,产生一个输出电压成正比电池电流。 LMP91000的可编程使它能够支持多个电化学传感器,例如3,导致有毒气体传感器和2导致原电池传感器多个分立的解决方案,而不是一个单一的设计。 LMP91000支持气体的敏感性 0.5 NA / ppm到9500 NA / ppm的范围。它也允许一个5μA电流范围从750μA充分的轻松转换规模。

    2012-11-6