TSX3702IST

Overview

The TSX3702IST is a micropower dual CMOS voltage comparator manufactured by STMicroelectronics. It features a MiniSO-8 surface-mount package and operates within a supply voltage range of 2.7 V to 16 V. The device draws a typical operating current of 11 µA per channel with a response time of 2.4 µs. Key electrical parameters include an input offset voltage of 5 mV, an input bias current of 600 pA, and a push-pull output capability delivering up to 20 mA per channel. It supports industrial temperature ranges from -40 °C to +125 °C.

Feature Summary

• Micropower CMOS architecture designed for extremely low current consumption
• Push-pull CMOS output stage eliminating the need for external pull-up resistors
• High input impedance with common-mode voltage range including ground
• Enhanced ESD tolerance providing robust performance in sensitive environments

Applications

• Battery-powered portable devices requiring minimal quiescent current
• Industrial sensor signal conditioning and threshold detection
• Automotive grade applications utilizing SO8 or MiniSO8 packages
• General-purpose voltage monitoring and level shifting circuits

Procurement Notes

Verify the specific ordering suffix IST corresponds to the MiniSO-8 package and reel/cut-tape availability when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected variant matches the required automotive or industrial temperature specifications for your target application environment.

Selection Notes

Select this component when system design demands low power consumption alongside high input impedance and fast response times. The push-pull output simplifies circuit design by removing external components typically needed for open-collector comparators. Consider the MiniSO-8 package for applications requiring compact footprint solutions without sacrificing electrical performance or thermal stability.

Part Context

The TSX3702 series represents an improvement over the legacy TS3702, offering lower current consumption and better input offset voltage characteristics. It maintains functional compatibility with standard bipolar comparators while providing superior power efficiency. The series includes variants optimized for automotive reliability and space-constrained modern electronic designs.

Replacement Considerations

The TSX3702 is functionally compatible with the TS3702. Designers upgrading from older LM393-based designs should verify that the push-pull output behavior aligns with existing circuit requirements, as the LM393 utilizes an open-collector output structure.