Texas Instruments LMP91000EVM/NOPB 模块-产品快照
- 品牌:
- Texas Instruments
- 型号:
- LMP91000EVM/NOPB
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| 供应商名称 | 电话 | 备注 |
|---|---|---|
| 得捷电子（上海）有限公司 | 400 920 1199 | |
| 深圳捷迈科技发展有限公司 | 0755-86128820 | |
| 上海贸泽电子有限公司 | ||
| 易络盟电子（中国）有限公司 | ||
| 深圳市鑫凯亚电子有限公司 |
产品介绍
Texas Instruments LMP91000EVM/NOPB 模块
Texas Instruments LMP91000EVM/NOPB, Electrochemical Sensor Evaluation Module
Texas Instruments
LMP91000 Sensor Analogue Front End for Electrochemical Sensor Evaluation Module The LMP91000 is a programmable Analogue Front End (AFE) for use in micro-power electrochemical sensing applications. It provides a complete 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 a single design as opposed to the multiple discrete solutions. The LMP91000 supports gas sensitivities over a range of 0.5nA/ppm to 9500nA/ppm. It also allows for an easy conversion of current ranges from 5μA to 750μA full scale.The LMP91000’s adjustable cell bias and transimpedance amplifier (TIA) gain are programmable through the IC interface. The IC interface can also be used for sensor diagnostics. An integrated temperature sensor can be read by the user through the VOUT pin and used to provide additional signal correction in the microcontroller or monitored to verify temperature conditions at the sensor.The LMP91000 is optimized for micro-power applications and operates over a voltage range of 2.7V to 5.25V. The total current consumption can be less than 10μA. Further power savings are possible by switching off the TIA amplifier and shorting the reference electrode to the working electrode with an internal switch. Typical Values, TA = 25°CSupply Voltage 2.7V to 5.25VSupply Current (Average Over Time) Cell Conditioning Current up to 10mAReference Electrode Bias Current (85°C) 900pA (max)Output Drive Current 750μAComplete Potentiostat Circuit to Interface to Most Chemical Cells Programmable Cell Bias Voltage Low Bias Voltage Drift Programmable TIA gain 2.75kΩ to 350kΩSink and Source Capability IC Compatible Digital Interface Ambient Operating Temperature -40°C to 85°CPackage 14-pin WSONSupported by WEBENCH Sensor AFE Designer Sensor Interfaces, Texas Instruments ; Analogue Function Electrochemical Sensor; Kit Classification Evaluation Module;
Semiconductors>Semiconductor Development Kits>Analogue Development Kits
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