TSX3704IDT

Overview

The TSX3704IDT is a micropower CMOS quad voltage comparator manufactured by STMicroelectronics. It features four independent comparators with push-pull outputs, designed to improve upon the TS3704 through lower current consumption and enhanced ESD tolerance. The device operates on a wide single supply range of 2.7 V to 16 V or dual supplies from ±1.35 V to ±8 V. Typical specifications include a supply current of 5 µA per comparator, an input bias current of 1 pA, and a response time of 2.7 µs for a 5 mV overdrive. It supports automotive grade applications in TSSOP14 packages and offers QFN16 3x3 and SO14 options.

Feature Summary

• Micropower operation with extremely low typical supply current of 5 µA per comparator
• Wide operating voltage range supporting both single and dual power supplies
• High input impedance with extremely low input bias current
• Robust protection featuring high ESD tolerance ratings

Applications

• Automotive systems
• Industrial control circuits
• Voltage monitoring and sensing

Procurement Notes

Verify the specific package type required for your design, as the TSX3704 family includes SO14, TSSOP14, and QFN16 3x3 variants. Confirm that the ordering suffix matches your intended packing method, such as tape and reel. Ensure the temperature range and any automotive qualification requirements align with your project specifications before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring low quiescent current and high input impedance. It serves as a direct functional replacement for the TS3704 series. Consider the available package options based on board space constraints, particularly the compact QFN16 3x3 for high-density layouts. Verify compatibility with your system's supply voltage levels and signal thresholds.

Part Context

This part belongs to the TSX3704 family of micropower quad CMOS voltage comparators. It is positioned as an improved version of the legacy TS3704, offering better electrical characteristics including reduced power consumption and superior offset voltage performance. The family provides flexibility through multiple package choices to suit various integration needs.

Replacement Considerations

The TSX3704 is fully compatible with the TS3704 CMOS comparator. Designers can utilize it as a drop-in replacement for existing TS3704 designs without modifying the circuit layout, benefiting from the enhanced specifications while maintaining pin-to-pin functionality.

FAQ

What is the maximum differential input voltage allowed?

The absolute maximum differential input voltage is rated at ±18 V.

How should unused comparator channels be configured?

To prevent unexpected additional consumption, unused inputs should be connected to the power supply pins to keep the circuit in a stable state.

Is phase reversal possible if one input exceeds the common-mode range?

No, the device is specifically designed to prevent phase reversal even if one input is driven above the positive supply rail.