MAX9021AUK+T

MAX9021AUK+T is a micropower, ultra-small, single comparator. It is optimized for low-power consumption while still providing a fast output response. The combination of low-power, single supply operation down to 2.5V, and ultra-small footprint makes this device ideal for portable applications. It has 4mV of built-in hysteresis to provide noise immunity and prevent oscillations even with a slow-moving input signal. The input common-mode range extends from the negative supply to within 1.1V of the positive supply. The design of the comparator-output stage substantially reduces switching current during output transitions, eliminating power-supply glitches. Applications include battery-powered portable systems, mobile communications, sensor-signal detection, photodiode preamps, digital line receivers, keyless entry systems, threshold detectors/ discriminators.

• No phase reversal for overdriven inputs, comparator output swings rail-to-rail
• Operating voltage range from 2.5 to 5.5V guaranteed by PSRR test
• Supply current per comparator is 2.8µA at VDD=5V, VSS=0, VCM=0, TA=-40°C to +125°C
• Input offset voltage is ±1mV at VDD=5V, VSS=0, VCM=0, TA=-40°C to +125°C
• Common-mode rejection ratio is 100dB typical at VSS ≤ VCM ≤ (VDD - 1.1V), VDD=5.5V
• Power-supply rejection ratio is 80dB typ at VDD=2.5V to 5.5V
• Propagation delay is 8µs typ at VOD=10mV, RL=10kohm, CL=15pF
• Hysteresis is 4mV typ at VDD=5V, VSS=0, VCM=0, TA=-40°C to +125°C
• 5 SOT23-5 package
• Temperature range from -40°C to +125°C

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party.