Key ratings and what they mean for the BOM
The 5µA maximum quiescent current per comparator is the standout spec for low-power designs — this part draws negligible supply current even with all four channels active, so it won't eat into the power budget of a loop-powered transmitter or a battery-backed monitor. The 4mV hysteresis is built in, which means the designer doesn't need external positive feedback resistors to prevent chatter on slow-moving inputs. Input offset voltage is trimmed to 1mV max at 5V, and input bias current is just 0.003µA — both specs keep error contributions small in precision threshold circuits. The 100dB CMRR and 80dB PSRR give the part good immunity to common-mode shifts and supply ripple, which matters when the comparator shares a rail with a switching regulator or a motor driver.
Package and temperature grade
Housed in a 14-SOIC surface-mount package (0.154" body width), the MAX9024ASD+ matches the standard SOIC-14 footprint used across many quad comparator and op-amp families. The -40°C to 125°C operating range qualifies it for under-hood automotive, outdoor telecom cabinets, and industrial enclosures where the ambient temperature can swing beyond commercial limits. The part is ROHS3 compliant, so it fits lead-free assembly lines without exemption paperwork.