The ADG5421BRMZ-RL7 is a single-pole single-throw (SPST) high voltage monolithic dual CMOS Analog Switch conducts equally well in both directions when on and has an input signal range that extends to the power supplies. In the off condition, signal levels up to the supplies are blocked. The ultralow on resistance and on-resistance flatness of this switch makes it ideal solutions for data acquisition and gain switching applications where low distortion is critical. The latch-up immune construction and high ESD rating makes it more robust in harsh environments. It turned on with a Logic 1 input.