LMP91000 Description
The LMP91000 is a programmable Analog Front End (AFE) for use in micro-power electrochemical sensing applications. It provides a plete 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...
LMP91000 Key Features
- Supply voltage <10 µA
- Supply current (average over time) 10 mA
- Cell conditioning current up to 900pA (max)
- Reference electrode bias current (85°C) 750µA
- Output drive current
- plete potentiostat circuit to interface to most chemical cells
- Programmable cell bias voltage
- Low bias voltage drift 2.75kΩ to 350kΩ
- Programmable TIA gain
- Sink and source capability