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LMP91002SDXSLASHNOPB.A中文资料

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LMP91002SDXSLASHNOPB.A

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功能描述

LMP91002 Sensor AFE System: Configurable AFE Potentiostat for Low-Power Chemical Sensing Applications

数据手册

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简称

TI2德州仪器

生产厂商

Texas Instruments

中文名称

美国德州仪器公司官网

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LMP91002SDXSLASHNOPB.A数据手册规格书PDF详情

1 Features

1• Typical Values, TA = 25°C

• Supply Voltage 2.7 V to 3.6 V

• Supply Current (Average Over Time) < 10 μA

• Cell Conditioning Current Up to 10 mA

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

(Maximum)

• Output Drive Current 750 μA

• Complete Potentiostat Circuit to Interface to Most

Not Biased Gas Sensors

• Low Bias Voltage Drift

• Programmable TIA Gain 2.75 kΩ to 350 kΩ

• I2C-Compatible Digital Interface

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

• Package 14-pin WSON

• Supported by Webench Sensor AFE Designer

2 Applications

• Gas Detectors

• Amperometric Applications

• Electrochemical Blood Glucose Meters

3 Description

The LMP91002 device is a programmable Analog

Front End (AFE) for use in micro-power electrochemical-sensing applications. It provides a

complete signal path solution between a not biased

gas sensor and a microcontroller generating an

output voltage proportional to the cell current.

The LMP91002’s programmability enables it support

not biased electro-chemical gas sensor with a single

design. The LMP91002 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 LMP91002’s

transimpedance amplifier (TIA) gain is programmable

through the I2C interface. The I2C interface can also be used for sensor diagnostics. The LMP91002 is

optimized for micro-power applications and operates

over a voltage range of 2.7 V to 3.6 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.

更新时间:2025-7-24 15:01:00
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Texas Instruments 美国德州仪器公司

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德州仪器(Texas Instruments),简称TI,是全球领先的半导体公司,为现实世界的信号处理提供创新的数字信号处理(DSP)及模拟器件技术。除半导体业务外,还提供包括传感与控制、教育产品和数字光源处理解决方案。TI总部位于美国德克萨斯州的达拉斯,并在25多个国家设有制造、设计或销售机构。德州仪器是推动互联网时代不断发展的半导体引擎,作为实时技术的领导者,TI正在快速发展,在无线与宽带接入等大型市场及数码相机和数字音频等新兴市场方面,凭借性能卓越的半导体解决方案不断推动着互联网时代的前进步伐。TI预想未来世界的方方面面都渗透着TI产品的点点滴滴,每个电话、每次上网、拍的每张照片、听的每