TS393CN

Overview

The TS393CN is a micropower CMOS dual voltage comparator manufactured by STMicroelectronics. It operates on a single supply of 2.7 V to 16 V or dual supplies of ±1.35 V to ±8 V. The device features an extremely low supply current of typically 9 µA per comparator and high input impedance of 10^12 Ω typical. Input common-mode voltage includes ground, with typical input bias and offset currents of 1 pA. Response time is typically 2.5 µs for 5 mV overdrive. It is housed in a DIP-8 package and functions as a pin-to-pin replacement for the LM393.

Feature Summary

• Extremely low power consumption suitable for battery-operated applications
• Wide single and dual supply voltage operating ranges
• High input impedance with negligible input bias and offset currents
• Direct functional compatibility with standard bipolar comparators

Applications

• Battery-powered measurement systems
• Threshold detection circuits
• Signal conditioning and waveform generation
• Low-power logic interface adapters

Procurement Notes

Verify that the specific order code matches the required temperature range and packaging format. Confirm the DIP-8 plastic package type aligns with board layout requirements. Ensure the industrial grade specification meets the operational environment constraints. Cross-reference the datasheet revision history for any updates to electrical characteristics or mechanical dimensions before finalizing procurement specifications.

Selection Notes

Select this component when low quiescent current is critical compared to standard bipolar alternatives. Verify that the open-collector output configuration fits the system pull-up requirements. Consider the response time specifications against signal frequency needs. Evaluate the wide common-mode input range relative to the available supply voltages and signal levels within the target application circuit.

Part Context

This device belongs to the TS393 family of micropower CMOS comparators. It serves as a direct drop-in replacement for the industry-standard LM393 dual bipolar comparator. The CMOS technology enables significantly lower power dissipation while maintaining similar speed performance. The family includes variants such as the TS3702 which offers push-pull outputs.

Replacement Considerations

The TS393CN is functionally compatible with the LM393. Designers should verify that the open-collector output stage does not require external pull-up resistors if replacing a push-pull device.