- Pinout Diagram
- Footprint Diagram
TI LMP91000SDX/NOPB
| Manufacturer | |
| MPN | LMP91000SDX/NOPB |
| LCSC Part # | C2651584 |
| Packaging | WSON-14(4x4) |
| Customer # | |
| Key Attributes | LMP91000 Sensor AFE System |
| Datasheet |  TI LMP91000SDX/NOPB |
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Data Acquisition/Analog Front End (AFE) | |
| Manufacturer | TI | |
| Packaging | WSON-14(4x4) | |
| Clock Frequency | 10kHz~100kHz | |
| Voltage Reference Value | 2.5V | |
| Interface | I2C | |
| Gain Drift | - | |
| Resolution(Bits) | -;- | |
| S/N Ratio | - | |
| Quiescent Current (Iq) | 0.85uA | |
| Integral non - linearity | - | |
| Voltage - Supply | 2.7V~5.25V | |
| Function | Programmable gain;Built-in temperature sensor | |
| Operating Temperature | -40℃~+85℃ |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 4500 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The LMP91000 is a programmable analog front-end (AFE) designed for low-power electrochemical sensing applications. It provides a complete signal path solution between the sensor and microcontroller, generating an output voltage proportional to the cell current. The programmability of the LMP91000 enables it to support multiple electrochemical sensors through a single design rather than multiple discrete solutions — for example, 3-wire toxic gas sensors and 2-wire galvanic cell-type sensors. The LMP91000 supports gas sensitivity ranging from 0.5nA/ppm to 9500nA/ppm, and enables simple conversion across a full-scale current range of 5μA to 750μA.
The LMP91000's adjustable cell bias and transimpedance amplifier (TIA) gain are programmable via the I²C interface, which also supports sensor diagnostics. An integrated temperature sensor can be read by the user through the VOUT pin and used to provide additional signal correction (in μc), or monitored to verify the sensor's temperature condition.
The LMP91000 is optimized for low-power applications, operating over a supply voltage range of 2.7V to 5.25V. Total current consumption is below 10μA. Power can be further reduced by shutting down the TIA amplifier and shorting the reference electrode to the working electrode using an internal switch.
Features
- Supply voltage: 2.7V to 5.25V
- Average supply current (over active period) <10μA
- Battery conditioning current up to 10mA
- Reference electrode bias current (85°C) 900pA (maximum)
- Output drive current 750μA
- Complete potentiostat circuit compatible with most electrochemical cells
- Programmable cell bias voltage
- Low bias voltage drift
- Programmable transimpedance amplifier (TIA) gain 2.75kΩ to 350kΩ
- Sink and source current capability
- I²C-compatible digital interface
- Ambient operating temperature range -40°C to 85°C
- 14-pin wafer-level small outline no-lead (WSON) package
- Supported by WEBENCH Sensor AFE design tool
Applications
- Chemical composition identification galvanometer applications
- Electrochemical blood glucose meters
| Qty | Unit Price | Total Amount |
|---|---|---|
| 1+ | $ 4.6779 | $ 4.68 |
| 10+ | $ 4.068 | $ 40.68 |
| 30+ | $ 3.7069 | $ 111.21 |
| 100+ | $ 3.3393 | $ 333.93 |
| 500+ | $ 3.1701 | $ 1585.05 |
| 1,000+ | $ 3.0953 | $ 3095.30 |
Standard Packaging4500/Full Reel | ||
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Data Acquisition/Analog Front End (AFE) | |
| Manufacturer | TI | |
| Packaging | WSON-14(4x4) | |
| Clock Frequency | 10kHz~100kHz | |
| Voltage Reference Value | 2.5V | |
| Interface | I2C | |
| Gain Drift | - | |
| Resolution(Bits) | -;- | |
| S/N Ratio | - | |
| Quiescent Current (Iq) | 0.85uA | |
| Integral non - linearity | - | |
| Voltage - Supply | 2.7V~5.25V | |
| Function | Programmable gain;Built-in temperature sensor | |
| Operating Temperature | -40℃~+85℃ |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 4500 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The LMP91000 is a programmable analog front-end (AFE) designed for low-power electrochemical sensing applications. It provides a complete signal path solution between the sensor and microcontroller, generating an output voltage proportional to the cell current. The programmability of the LMP91000 enables it to support multiple electrochemical sensors through a single design rather than multiple discrete solutions — for example, 3-wire toxic gas sensors and 2-wire galvanic cell-type sensors. The LMP91000 supports gas sensitivity ranging from 0.5nA/ppm to 9500nA/ppm, and enables simple conversion across a full-scale current range of 5μA to 750μA.
The LMP91000's adjustable cell bias and transimpedance amplifier (TIA) gain are programmable via the I²C interface, which also supports sensor diagnostics. An integrated temperature sensor can be read by the user through the VOUT pin and used to provide additional signal correction (in μc), or monitored to verify the sensor's temperature condition.
The LMP91000 is optimized for low-power applications, operating over a supply voltage range of 2.7V to 5.25V. Total current consumption is below 10μA. Power can be further reduced by shutting down the TIA amplifier and shorting the reference electrode to the working electrode using an internal switch.
Features
- Supply voltage: 2.7V to 5.25V
- Average supply current (over active period) <10μA
- Battery conditioning current up to 10mA
- Reference electrode bias current (85°C) 900pA (maximum)
- Output drive current 750μA
- Complete potentiostat circuit compatible with most electrochemical cells
- Programmable cell bias voltage
- Low bias voltage drift
- Programmable transimpedance amplifier (TIA) gain 2.75kΩ to 350kΩ
- Sink and source current capability
- I²C-compatible digital interface
- Ambient operating temperature range -40°C to 85°C
- 14-pin wafer-level small outline no-lead (WSON) package
- Supported by WEBENCH Sensor AFE design tool
Applications
- Chemical composition identification galvanometer applications
- Electrochemical blood glucose meters
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |