没有反馈电阻的仪表放大器提供精确增益，无论增益多大，放大器的同向和反向输入端提供高输入阻抗。
An instrumentation amplifier offers precise gain without feedback resistors, and, at any value of gain, it provides high input impedances at its noninverting and inverting inputs.
没有反馈电阻的仪表放大器提供精确增益，无论增益多大，放大器的同向和反向输入端提供高输入阻抗。
An instrumentation amplifier offers precise gain without feedback resistors, and, at any value of gain, it provides high input impedances at its noninverting and inverting inputs.
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