Dual CMOS op-amp for sensor conditioning and battery-powered loops
The MAX9637AXA+T is a dual CMOS operational amplifier from Analog Devices, packing two rail-to-rail output channels in an SC-70-8 package. It runs on a 2.1 V to 5.5 V supply span, drawing 36 µA per channel — sized for battery-operated sensor interfaces, portable instrumentation, and low-power signal chains where every microamp counts. The 1.5 MHz gain-bandwidth product and 0.9 V/µs slew rate handle audio-frequency filtering, photodiode transimpedance stages, and general-purpose buffering without wasting power.
Rail-to-rail output and input bias — what they mean for the BOM
Rail-to-rail output lets the amplifier swing within millivolts of the supply rails. The 0.1 pA input bias current is essential for high-impedance sources.
Temperature grade and environment
Rated -40°C to 125°C, this part is comfortable in automotive under-hood modules, industrial motor-drive feedback loops, and outdoor telecom gear. The SC-70-8 footprint is small enough for space-constrained PCBs but still hand-solderable for prototype rework.
Lifecycle and sourcing
The MAX9637AXA+T carries an Active lifecycle status and is RoHS3 compliant. No end-of-life notice is on record, so it's safe to qualify for new production builds.