LMP91051 - 用于 (NDIR) 遥感应用的 LMP91051 可配置 AFE

LMP91051是TI德州仪器公司的一款无产品，LMP91051是用于 (NDIR) 遥感应用的 LMP91051 可配置 AFE，本站介绍了LMP91051的封装应用图解、特点和优点、功能等，并给出了与LMP91051相关的TI元器件型号供参考。

LMP91051 - 用于 (NDIR) 遥感应用的 LMP91051 可配置 AFE - 无 - 气体/化学感应 - 德州仪器

产品描述

The LMP91051 is a dual channel programmable integrated Sensor Analog Front End (AFE) optimized for thermopile sensors, as typically used in NDIR applications. It provides a complete signal path solution between a sensor and microcontroller that generates an output voltage proportional to the thermopile voltage. The LMP91051’s programmability enables it to support multiple thermopile sensors with a single design as opposed to the multiple discrete solutions.

The LMP91051 features a programmable gain amplifier (PGA), “dark phase” offset cancellation, and an adjustable common mode generator (1.15V or 2.59V) which increases output dynamic range. The PGA offers a low gain range of 167V/V to 1335V/V plus a high gain range of 1002V/V to 7986V/V which enables the user to utilize thermopiles with different sensitivities. The PGA is highlighted by low gain drift (20 ppm/°C), output offset drift (230 mV/°C at G = 1002 V/V), phase delay drift (300 ns) and noise specifications (0.1 µVRMS 0.1 to 10Hz) . The offset cancellation circuitry compensates for the “dark signal” by adding an equal and opposite offset to the input of the second stage, thus removing the original offset from the output signal. This offset cancellation circuitry allows optimized usage of the ADC full scale and relaxes ADC resolution requirements.

The LMP91051 allows extra signal filtering (high pass, low pass or band pass) through dedicated pins A0 and A1, in order to remove out of band noise. The user can program through the on board SPI interface. Available in a small form factor 14 pin TSSOP package, the LMP91051 operates from –40 to +105°C.

产品特性

Dual Channel Input
Programmable Gain Amplifier
“Dark Signal” Offset Cancellation
Supports External Filtering
Common Mode Generator and 8 Bit DAC
Package 14 Pin TSSOP

下面可能是您感兴趣的TI德州仪器公司无元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购