# LMP91000SDX/NOPB (Component)
## Description
Configurable Analog Front-End (AFE) Potentiostat for Electrochemical Sensors – Ultra-low-power programmable analog front-end designed for electrochemical gas sensors, toxic gas detection, air quality monitoring, industrial safety systems, wearable health devices, environmental monitoring, and embedded sensing applications. The Texas Instruments LMP91000 integrates a complete potentiostat and transimpedance amplifier (TIA), enabling direct interfacing with 2-electrode galvanic and 3-electrode amperometric chemical sensors. Operates from a 2.7 V to 5.25 V supply while consuming less than 10 µA typical supply current, making it ideal for battery-powered systems. Features a programmable TIA gain (2.75 kΩ to 350 kΩ), programmable load resistor, programmable cell bias, I²C-compatible interface, integrated temperature sensor, sensor diagnostics, and support for sensor currents from 5 µA to 750 µA full scale. Housed in a compact 14-pin WSON (4 × 4 mm) package and specified for operation over a −40°C to +85°C temperature range.
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## Component Details
- **Owner:** silicon-yard
- **Created:** 8/3/2026
- **Last Updated:** 8/3/2026
- **Visibility:** Public
- **Manufacturer Name:** Texas Instruments
- **Symbol Style:** parametric-v1
- **Part Type:** Sensors
- **Package or Case Code:** 14-WSON
- **Datasheet URL:** https://www.arrow.com/en/products/lmp91000sdxnopb/texas-instruments
- **Manufacturer Part Number:** LMP91000SDX/NOPB
- **Used in:** 1 project
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/lmp91000sdxnopb/texas-instruments.html?utm_currency=USD®ion=nac) | N/A | N/A |
| [Mouser](https://www.mouser.com/en/ProductDetail/Texas-Instruments/LMP91000SDX-NOPB?qs=7lkVKPoqpbYmeZ1SbPtg0w%3D%3D) | $4.84 | 2.3K |
- **Part Type:** Sensors
- **Manufacturer:** Texas Instruments
- **MPN:** LMP91000SDX/NOPB
- **Package / Case Code:** 10-WSON
- **Pin Count:** 15
## Pins
| Pin | Name | Type |
|-----|------|------|
| 6 | VDD | |
| 4 | SDA | |
| 3 | SCL | |
| 2 | MENB | |
| 9 | C2 | |
| 11 | VREF | |
| 10 | C1 | |
| 8 | VOUT | |
| 13 | RE | |
| 14 | CE | |
| 12 | WE | |
| 5 | NC | |
| 7 | AGND | |
| 1 | DGND | |
| 15 | EP | |
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*Generated from [https://www.flux.ai/silicon-yard/lmp91000sdxnopb](https://www.flux.ai/silicon-yard/lmp91000sdxnopb)*