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请教INA333+THS4521问题

Other Parts Discussed in Thread: INA333, ADS1274, THS4521

请教各位专家:

       我在用INA333放大一个小信号,单电源供电,后面接THS4521放大后和ads1274连接,图见附件。我想请教的是:INA333输出是叠加在REF(VCC/2))之上,下一级放大,是用电阻衰减了接THS4521, 还是THS4521的Vin-接REF(Vcc/2)把INA333输出直流偏置REF减掉,还是有其他的好办法,请指教,谢谢!