| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,000 pcs
|
2000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Conflict Minerals | |
| Halogen Free | |
| Lead Spacing | |
| Lead Style | |
| Operating Temperature Range | |
| Package / Case | |
| SVHC Present | |
| Tape & Reel |
The LMP91000SD from Texas Instruments is a versatile analog front-end (AFE) potentiostat designed for micro-power electrochemical sensing applications. It offers a complete signal path solution, interfacing directly between a chemical sensor and a microcontroller to generate an output voltage proportional to the cell current.
This AFE supports a wide range of electrochemical sensors, including 3-lead toxic gas sensors and 2-lead galvanic cell sensors, enabling a single design to accommodate multiple sensor types. Key features include programmable cell bias voltage, low-bias voltage drift, and a programmable transimpedance amplifier (TIA) gain ranging from 2.75 kΩ to 350 kΩ. The device operates over a supply voltage range of 2.7 V to 5.25 V and features a low average supply current of less than 10 µA.
The LMP91000SD communicates via a serial I2C interface, which is also utilized for sensor diagnostics. It operates within an ambient temperature range of -40°C to 85°C and is housed in a compact 14-pin WSON package.
This device is suitable for applications requiring precise current measurement and signal conditioning for electrochemical cells, such as environmental monitoring, industrial process control, and portable analytical instruments.
The supply voltage range is 2.7 V to 5.25 V.
-40°C to 85°C.
14-pin WSON package (4 mm × 4 mm).
Yes, it features a serial I2C interface.
The average supply current is less than 10 µA.
2.75 kΩ to 350 kΩ.