[原创] Maxim MAX11410 24位多路Delta－Sigma ADC解决方案

Maxim公司的MAX11410是集成了PGA的24位多路低功耗Delta-Sigma模数转换器(ADC).输入部分包括低噪音可编增益放大器(PGA),具有很高阻抗,增益从1x到128x, 50Hz和60Hz动力线抑制90dB,模拟电源2.7V-3.6V,I/O电源1.7V-3.6V,睡眠模式电流小于1uA,标准SPI兼容的控制接口,主要用在传感器测量,手持仪表和电阻电桥测量.本文介绍了MAX11410优势和主要特性,框图和典型应用电路,以及评估板MAX11410 EVK主要特性,电路图和材料清单.

The MAX11410 is a low-power, multi-channel, 24-bit delta-sigma ADC with features and specifications that are optimized for precision sensor measurement.

The input section includes a low-noise programmable gain amplifier (PGA) with very high input impedance and available gains from 1x to 128x to optimize the overall dynamic range. Input buffers provide isolation of the signal inputs from the switched-capacitor sampling network when the PGA is not in use, making the ADC easy to drive even with high-impedance sources.
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