TSM922CUA+T

Overview

The TSM922CUA+T is a dual-channel analog comparator manufactured by Touchstone Semiconductor, housed in an 8-MSOP surface-mount package. It operates on a single supply voltage ranging from 2.5V to 11V or dual supplies of ±1.25V to ±5.5V. The device features CMOS and TTL-compatible outputs with a typical output current of 40mA. Key electrical specifications include a maximum propagation delay of 12µs, a maximum input offset voltage of 10mV at 2.5V, and a typical CMRR/PSRR of 80dB. Static current consumption is limited to a maximum of 4.5µA, and it includes 50mV of internal hysteresis.

Feature Summary

• Dual-channel configuration for independent signal comparison within a compact footprint
• CMOS and TTL compatible output stages supporting wide logic interface integration
• Ultra-low static power consumption suitable for battery-operated applications
• Integrated hysteresis to prevent output oscillation during noisy transitions

Applications

• Battery-powered portable electronics requiring low quiescent current
• Threshold detection circuits in consumer appliances
• Signal conditioning interfaces between analog sensors and digital logic

Procurement Notes

Verify component authenticity through authorized distributors as the part status is listed as End-of-Life (EOL) by Analog Product EOL dated September 9, 2016. Confirm package integrity upon receipt, as the 8-MSOP form factor is sensitive to moisture despite MSL Level 1 classification. Cross-reference ordering suffixes such as +TTR or +CT to ensure correct reel or cut-tape packaging specifications match production requirements.

Selection Notes

Select this component when dual comparators are required with minimal power draw and standard logic compatibility. The 8-MSOP package offers space efficiency for dense PCB layouts. Ensure supply voltages remain within the 2.5V to 11V range to maintain specified performance metrics. Consider the 12µs propagation delay for timing-sensitive designs, as it may limit high-speed switching applications compared to faster alternatives.

Part Context

The TSM922CUA+T belongs to the TSM92x series of precision comparators from Touchstone Semiconductor. This series emphasizes low-power operation and robust noise immunity through integrated hysteresis. The device complements other members like the TSM923CUA+T, differing primarily in channel count while sharing similar electrical characteristics and packaging options designed for general-purpose analog-to-digital interfacing tasks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.