Active production — dual comparator with on-chip reference
The MAX983CSA+ is an Analog Devices dual comparator that integrates a voltage reference on the same die, saving board space and trimming the external reference BOM to one 8-SOIC package.
What the 6 µA quiescent and 50 mV hysteresis mean for the BOM
With a maximum quiescent current of 6 µA, the MAX983CSA+ draws negligible supply current in always-on threshold monitors — battery-backed overvoltage or undervoltage detectors see years of standby without draining the cell. The 50 mV built-in hysteresis prevents output chatter when the input signal sits near the trip point, eliminating the need for external positive-feedback resistors. This is a direct BOM simplification for window comparators and zero-crossing detectors. Typical 80 dB CMRR and 80 dB PSRR mean the threshold accuracy holds across common-mode shifts and supply ripple — relevant when the comparator shares a rail with a switching regulator or a noisy digital bus.
Supply range and input offset — fitting the rail
Maximum input offset voltage is 10 mV at 5 V — the internal reference and comparator offset together define the trip-point tolerance; for a 1 % threshold budget, this part fits without trimming.
Package and temperature grade for the assembly line
Surface-mount assembly with tube shipment.