# LMP91000SD - Texas Instruments Analog Front End (AFE)

## Product Summary

The Texas Instruments LMP91000SD is a programmable analog front-end (AFE) designed for low-power electrochemical sensing applications. It provides a complete signal path between a sensor and a microcontroller.

## Product Information

| Field | Value |
| --- | --- |
| Part Number | LMP91000SD |
| Manufacturer | Texas Instruments |
| Product Type | Analog Front End (AFE) |
| Series | LMP91000 |
| Category | Uncategorized |
| Subcategory | Signal Conditioning |

## Description

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.

## Key Specifications

| Specification | Value |
| --- | --- |
| Conflict Minerals | Conflict Minerals Compliant |
| Halogen Free | Yes |
| SVHC Present | Not Present |
| Tape & Reel | Yes |

## Availability and Pricing

| Field | Value |
| --- | --- |
| Stock Status | In Stock |
| Distributor Count | 1 |
| Total Stock | 2,000 |
| Pricing Available | No |

## Distributor Offers

| Distributor | Stock | Unit Price | MOQ | Lead Time | Last Updated |
| --- | --- | --- | --- | --- | --- |
| Xingangxin | 2,000 |  |  |  |  |

## Features

- Programmable analog front-end for electrochemical sensing.
- Supports multiple electrochemical sensor types.
- Programmable TIA gain from 2.75 kΩ to 350 kΩ.
- I2C compatible digital interface for control.
- Wide operating temperature range of -40°C to 85°C.

## Applications

- Low-power electrochemical cell monitoring.
- Toxic gas sensor signal conditioning.
- Galvanic cell current measurement.
- Portable chemical sensing devices.

## Compliance

| Field | Value |
| --- | --- |
| RoHS Status | RoHS3 Compliant |
| REACH Status | REACH Unaffected |
| Lead Free | Yes |
| Moisture Sensitivity Level | 1 Unlimited |
| Halogen Free | Yes |
| SVHC Present | Not Present |

## Documents and Media

- Image: https://static.distyparts.com/disty-files/images/b0/4a/1f/nhl0014b.png
- Product Page: https://distyparts.com/product/lmp91000sd
- RFQ URL: https://distyparts.com/product/lmp91000sd#rfq

## FAQs

### What is the operating voltage range of the LMP91000SD?

The supply voltage range is 2.7 V to 5.25 V.

### What is the operating temperature range?

-40°C to 85°C.

### What package does the LMP91000SD come in?

14-pin WSON package (4 mm × 4 mm).

### Does the LMP91000SD have an I2C interface?

Yes, it features a serial I2C interface.

### What is the typical supply current?

The average supply current is less than 10 µA.

### What is the programmable TIA gain range?

2.75 kΩ to 350 kΩ.

## Related Pages

- Manufacturer: https://distyparts.com/manufacturer/texas-instruments
- Category: https://distyparts.com/category/uncategorized/new-products
- Product Page: https://distyparts.com/product/lmp91000sd
- Markdown File: https://distyparts.com/product/lmp91000sd.md
- TXT File: https://distyparts.com/product/lmp91000sd.txt