LMP91000 Overview
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
- 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
- Output Drive Current 750 µA
- plete Potentiostat Circuit-to-Interface to Most
- Programmable Cell Bias Voltage
- Low-Bias Voltage Drift
- Programmable TIA gain 2.75 kΩ to 350 kΩ
