MAX9140AAXK/V+T

Overview

The MAX9140AAXK/V+T is a single-channel high-speed analog comparator from the MAX9140 family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 2.7V to 5.5V with a typical supply current of 360µA at 5V. The device features a propagation delay of 40ns and includes internal hysteresis of 1.5mV for clean switching. It utilizes an SC-70-5 package and supports CMOS/TTL-compatible outputs. This specific variant is AEC-Q100 qualified and rated for an extended operating temperature range of -40°C to +125°C.

Feature Summary

• Rail-to-rail input voltage range extending beyond power-supply rails
• Internal hysteresis ensures clean output switching without external resistors
• Outputs pull to within 300mV of either supply rail without external pullup circuitry
• AEC-Q100 qualified for automotive reliability standards

Applications

• Line Receivers
• Battery-Powered Systems
• Threshold Detectors/Discriminators
• Zero-Crossing Detectors
• Sampling Circuits

Procurement Notes

Verify that the ordering suffix /V indicates the specific temperature grade and packaging configuration required for your design. Confirm AEC-Q100 qualification status if automotive compliance is mandatory. Ensure the SC-70-5 footprint matches your PCB layout constraints. Check for lead-free/RoHS compliance markings on the component body or datasheet documentation before finalizing procurement specifications.

Selection Notes

Select this part when a single comparator with rail-to-rail inputs and low power consumption is needed in a small SC-70-5 package. It serves as a direct upgrade to older industry-standard comparators like the MAX941. Consider the MAX9141 if latch enable or shutdown functionality is required instead. Verify that the 40ns propagation delay meets your system timing requirements under expected overdrive conditions.

Part Context

This component belongs to the MAX9140/MAX9141/MAX9142/MAX9144 family of high-speed, low-power comparators optimized for 3V and 5V systems. While the MAX9140 provides a single channel, other variants offer dual or quad channels. The MAX9141 adds latch and shutdown features. All devices share similar electrical characteristics but differ in pin count and package options such as SOT23, SO, and TSSOP.

Replacement Considerations

Public confirmed substitute part numbers: MAX9140AAXK+T, MAX9140AAUK+T.