为什么ads1274evm选用的是opa1632d而不选择其他的放大器呢
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运放的选择是根据需要来决定的,在确定ADC后在一推运放里选择‘最佳’的,需要考虑BW, Noise , THD, Distortion, etc,选择最适合的而不是最优秀的。如这里只是单位增益,那么我们就要找单位增益稳定,性能不错的。另外还有功耗,成本等需要考虑。