TS3702CDT

Overview

The TS3702CDT is a micropower CMOS dual voltage comparator from STMicroelectronics. It features a push-pull output stage, eliminating the need for external pull-up resistors. The device operates on a wide single supply range of 2.7V to 16V or dual supplies (±1.35V to ±8V). Typical supply current is 9µA per comparator. Input characteristics include high impedance (10^12Ω typ) and extremely low input bias current (1pA typ). Response time is typically 2µs for 5mV overdrive. It is pin-to-pin compatible with bipolar LM393.

Feature Summary

• Push-pull CMOS output stage eliminates external pull-up resistor requirements
• Extremely low power consumption with typical 9µA supply current per comparator
• High input impedance and extremely low input bias current
• Pin-to-pin and functionally compatible with bipolar LM393

Applications

• General purpose signal conditioning
• Voltage monitoring circuits
• Threshold detection systems

Procurement Notes

Verify the specific package type and tape/reel specifications against the official datasheet before procurement. Ensure the ordering suffix matches the required packaging format. Confirm that the component meets all environmental and RoHS compliance requirements for the intended application. Cross-reference the manufacturer part number with authorized distributor listings to ensure authenticity.

Selection Notes

Select this component when low power consumption is critical alongside the need for a push-pull output. It serves as a direct replacement for open-collector comparators like the LM393 where space savings from removing pull-up resistors are desired. Consider the wide supply voltage range and fast response time for general-purpose analog switching applications requiring high input impedance.

Part Context

The TS3702 belongs to the TS3702 series of micropower CMOS dual voltage comparators. It is designed as an improvement over traditional bipolar comparators, offering significantly lower current consumption while maintaining similar response times. The series includes variants such as the TSX3702, which offers further improvements in offset voltage and ESD tolerance.

Replacement Considerations

The TS3702 is pin-to-pin and functionally compatible with the bipolar LM393. Designers replacing LM393 units should verify that the push-pull output characteristics align with the existing circuit design, as this differs from the open-collector output of the LM393.