Description: The HS-2420EH is a radiation hardened monolithic circuit consisting of a high performance operational amplifier with its output in series with an ultra-low leakage analog switch and a MOSFET input unity gain amplifier. With an external hold capacitor connected to the switch output, a versatile high performance sample-and-hold or track-and-hold circuit is formed. When the switch is closed, the device behaves as an operational amplifier and any of the standard op amp feedback networks may be connected around