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请教TI工程师PGA281的问题

Other Parts Discussed in Thread: PGA281

请问按照SBOU130的电路图FIG.2,VSON接地,VOCM接2.5V 是不是不能实现双极性输出

按照我的理解,比如±1V的正弦波利用PGA281来衰减1倍或放大1倍,VSON应该接-5V,VOCM应该接地,才能实现输出±0.5V或±2V

是不是这样,还是理解错误

谢谢