MAX4820 +3.3V/+5V, 8-Channel, Cascadable Relay Drivers with Serial/Parallel Interface

+3.3V/+5V, 8-Channel, Cascadable Relay Drivers with Serial/Parallel Interface. The MAX4820/MAX4821 8-channel relay drivers offer built-in kickback protection and drive +3.3V/+5V nonlatching or dual-coil-latching relays. These devices are especially useful when driving +3V relays. Each independent open-drain output features a 2Ω on-resistance and is guaranteed to sink 70mA (min) of load current. Both devices consume less than 50µA (max) quiescent current and have 1µA output off-leakage current.