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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR SC70-5
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：1
- Output Type：CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±)：2.7V ~ 5.5V
- Voltage - Input Offset (Max)：6mV @ 5V
- Current - Input Bias (Max)：0.35µA @ 5V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：400µA
- CMRR, PSRR (Typ)：61.41dB CMRR, 61.94dB PSRR
- Propagation Delay (Max)：40ns
- Hysteresis：1.5mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Mounting Type：Surface Mount
- Supplier Device Package：SC-70-5
- Grade：-
- Qualification：-
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Overview
The MAX9140AAXK+T is a single-channel, high-speed analog comparator from Analog Devices/Maxim Integrated. It operates on a single supply voltage ranging from 2.7V to 5.5V with a typical supply current of 150µA per comparator at 3V. The device features a propagation delay of 40ns and rail-to-rail input/output capabilities. Input offset voltage is specified at a maximum of 6mV for the AA grade. It includes internal hysteresis of 1.5mV and outputs that swing within 300mV of either supply rail without external pullup circuitry.
Feature Summary
- Rail-to-rail input and output voltage ranges enable direct interface with CMOS and TTL logic without external components.
- Internal fixed hysteresis ensures clean switching and prevents oscillation caused by noise or slow-moving signals.
- Outputs are capable of continuous short-circuit fault conditions to either power rail without damage.
- Optimized for low-power operation in portable systems while maintaining high-speed performance.
Applications
- Line Receivers
- Threshold Detectors/Discriminators
- Zero-Crossing Detectors
- Sampling Circuits
Procurement Notes
Verify the specific suffix 'AA' indicates the automotive-grade variant with extended temperature range (-40°C to +125°C) and tighter electrical specifications compared to standard E-grade parts. Confirm the package code 'XK' corresponds to the SC-70-5 footprint required for your PCB layout. Ensure the '+T' designation matches your reel or cut-tape handling requirements. Cross-reference the manufacturer part number with authorized distributors to confirm current availability status.
Selection Notes
Select this component when a single comparator with rail-to-rail I/O is required in a space-constrained design. It serves as a lower-power, higher-speed upgrade over legacy MAX941/MAX942 comparators. Choose this part if the application demands internal hysteresis to eliminate external feedback resistors. Verify that the 40ns propagation delay meets the system timing constraints for signal processing speeds.
Part Context
This device belongs to the MAX9140 family of single-supply comparators designed for 3V and 5V systems. It is functionally similar to the MAX9141 but lacks the latch enable and shutdown pins found in the MAX9141 variant. The MAX9140 series offers dual (MAX9142) and quad (MAX9144) channel options for multi-channel applications requiring synchronized comparison.
Replacement Considerations
Public confirmed substitute part numbers: MAX9140EXK+T, MAX9140AAUK+T.
