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OPA2188: 闲置不用的一组运放引脚该如何处理?

Part Number: OPA2188
Other Parts Discussed in Thread: OPA188

我使用OPA2188的一组放大器,另一路空置了,我想请教一下,闲置的那一路放大器的引脚该如何接线,接地还是直接悬空?

分别有同向/反向输入和输出端,这三个引脚闲置,我使用的是单电源供电。