The Keithley 7173-50 combines high frequency performance with excellent DC switching characteristics. It provides 200MHz bandwidth in a 4X12 configuration. Offset voltage is <15µV per crosspoint, and offset current is <200pA. The combined AC and DC capabilities make it ideal for mixed signal applications where both high frequency and low level DC signals must be switched-for example, testing ADCs or DACs, which involves measuring both digital and analog signals.