TS3704IDT

Overview

The TS3704IDT is a micropower quad CMOS voltage comparator manufactured by STMicroelectronics. It features four independent comparators in a 14-SOIC package with push-pull outputs, eliminating the need for external pull-up resistors. The device operates on a single supply of 2.7V to 16V or dual supplies of ±1.35V to ±8V. Key electrical characteristics include an extremely low supply current of 9µA per comparator, input bias current of 1pA typ., and response time of 2µs typ. for 5mV overdrive. It offers high input impedance of 10^12 Ω and includes ground-referenced common-mode voltage range.

Feature Summary

• Push-pull CMOS output stage eliminates requirement for external pull-up resistors
• Extremely low power consumption with 9µA typical supply current per comparator
• High input impedance of 10^12 Ω with input common-mode voltage including ground
• Pin-to-pin and functionally compatible with bipolar LM339 devices

Applications

• Battery-powered systems requiring low quiescent current
• Threshold detection circuits replacing open-collector comparators
• Signal conditioning applications utilizing window comparator configurations
• General-purpose voltage monitoring in space-constrained designs

Procurement Notes

Verify the specific suffix IDT indicates a 14-SOIC surface-mount package when sourcing. Confirm RoHS3 compliance status as required by project specifications. Ensure the ordering quantity matches the standard factory packaging of 2,500 units for reel orders. Cross-reference the manufacturer part number TS3704IDT directly with official distributor catalogs to avoid counterfeit components.

Selection Notes

Select this component when designing circuits that require pin-compatible replacement for LM339 but demand lower power consumption. The push-pull output capability simplifies board layout by removing external pull-up resistors. Consider the 2.7V minimum supply voltage for compatibility with modern low-voltage logic interfaces. Evaluate the 1pA input bias current suitability for high-impedance sensor interfaces.

Part Context

The TS3704 belongs to STMicroelectronics' family of micropower CMOS voltage comparators. It serves as a low-power alternative to traditional bipolar comparators like the LM339. The device integrates four independent channels within a compact 14-SOIC footprint. This series targets applications where power efficiency and reduced component count are critical design constraints.

Replacement Considerations

The TLC3704IDR from Texas Instruments is documented as a similar substitute part.