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差动输入ADC的选择问题,请技术解答

Other Parts Discussed in Thread: ADC122S655

希望选择一款ADC芯片:

要求:    

1.真差分输入,可在二路差分输入信号切换,差分信号幅度0-5V    

2.转换速度>200K      

3.电源电压5V      

4.输出接口SPI或并口都可      

 5.价格人民币:1K定量<18.00