The AD7643 is hardware factory calibrated and tested to ensure ac parameters, such as signal-to-noise ratio (SNR), in addition to the more traditional dc parameters of gain, offset, and linearity.

• AD7643经过出厂硬件校准和测试，可确保除一般直流参数（增益、偏置和线性度）之外，诸如信噪比（SNR）等交流参数也合乎要求。