TS393MD

Overview

The TS393MD is a micropower CMOS dual voltage comparator manufactured by STMicroelectronics. It operates within a wide single supply range of 4 V to 16 V or dual supplies (±2 V to ±8 V). The device features an extremely low supply current of typically 9 µA per comparator and an input bias current of 1 pA typical. It provides a fast response time of 0.7 µs for low-to-high transitions and 2.5 µs for high-to-low transitions with a 5 mV overdrive. The input common-mode voltage range includes ground, and the output type is open drain.

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
• Pin-to-pin and functionally compatible with bipolar LM393

Applications

• Battery-powered sensing systems
• Precision threshold detection circuits
• Low-power signal conditioning

Procurement Notes

Verify the specific suffix MD indicates the -55°C to +125°C temperature range and SO-8 package configuration. Confirm that the component is sourced from authorized channels to ensure authenticity. Check for RoHS compliance status as indicated in the datasheet revision history. Ensure the ordering code matches the required packaging format, such as tube or tape and reel, before finalizing procurement.

Selection Notes

Select this component when replacing a standard bipolar LM393 to achieve significantly lower quiescent current without sacrificing speed. Consider the open-drain output requirement which necessitates an external pull-up resistor for proper logic level interfacing. Evaluate the extended industrial temperature range (-55°C to +125°C) against environmental conditions. Verify that the input common-mode voltage requirements align with the system's ground-referenced signals.

Part Context

The TS393 series represents a micropower CMOS alternative to traditional bipolar comparators like the LM393. The TS393MD specifically denotes the industrial temperature grade variant housed in an SO-8 plastic micropackage. This family is designed to offer similar performance characteristics while drastically reducing power dissipation, making it ideal for portable and energy-efficient electronic designs.

Replacement Considerations

Functionally compatible with LM393 variants. Direct pin-for-pin replacement possible with attention to supply voltage limits.