TS332IDT

Overview

The TS332IDT is a dual micropower, low-voltage analog comparator manufactured by STMicroelectronics. It operates within a supply voltage range of 1.6 V to 5 V and features rail-to-rail inputs for compatibility with low-voltage signal sources. The device consumes a typical current of 20 μA and provides an open-drain output capable of sinking up to 93 mA at 5 V. Key electrical parameters include a maximum propagation delay of 720 ns, a maximum input offset voltage of 5 mV at 5 V, and a maximum input bias current of 0.04 μA at 5 V. It offers a common-mode rejection ratio (CMRR) of 79 dB and supports an industrial operating temperature range from -40 °C to +125 °C.

Feature Summary

• Rail-to-rail input capability ensures accurate detection across the full supply voltage range.
• Open-drain output configuration allows flexible interfacing with various logic families.
• Micropower design achieves low current consumption suitable for battery-operated applications.
• High ESD tolerance protects against electrostatic discharge events.

Applications

• Low-voltage threshold detection circuits
• Battery-powered monitoring systems
• Industrial sensor interface modules

Procurement Notes

Verify the specific ordering suffix to confirm package type and tape/reel specifications. Ensure the component meets RoHS3 compliance requirements for your manufacturing process. Confirm that the selected variant aligns with the required thermal management and PCB layout guidelines for SOIC-8 packages.

Selection Notes

Select this component when designing systems requiring low quiescent current and wide supply voltage flexibility. The open-drain output necessitates an external pull-up resistor; ensure the resistor value supports the desired switching speed and logic levels. Verify that the input signal swing remains within the rail-to-rail limits for optimal performance.

Part Context

This part belongs to the TS33x family of comparators, which includes single (TS331), dual (TS332), and quad (TS334) configurations. The family is designed for general-purpose applications where power efficiency and low-voltage operation are critical constraints.

Replacement Considerations

The MAX990ESA+T is listed as a similar alternative. Verify pinout compatibility and electrical parameter alignment before substitution.