TS7221AILT

Overview

The TS7221AILT is a single-channel analog comparator from STMicroelectronics, utilizing BICMOS technology for micro-power operation. It operates within a supply voltage range of 2.7 V to 10 V and consumes only 6 µA of operating current. The device features an open-drain output capable of sourcing up to 30 mA per channel. Key electrical specifications include a maximum input offset voltage of 7 mV and an input bias current of 300 pA. It provides a response time of 500 ns and functions reliably across a temperature range of -40 °C to +85 °C.

Feature Summary

• Single-channel general-purpose comparator design optimized for low power consumption
• Open-drain output configuration supporting flexible interfacing with various logic families
• Rail-to-rail input capability enabled by BiCMOS technology

Applications

• Battery-powered portable electronic devices requiring minimal quiescent current
• Threshold detection circuits in industrial monitoring systems
• Signal conditioning stages in consumer electronics

Procurement Notes

Verify the specific suffix 'AILT' corresponds to the required temperature grade (-40°C to +85°C) and tape-and-reel packaging format. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the open-drain output requirements align with the target system's pull-up resistor configuration.

Selection Notes

Select this component when a single comparator with ultra-low power consumption is required. The 7 mV offset voltage offers moderate precision suitable for general-purpose applications. Consider the 500 ns response time against system speed requirements. Verify that the SOT-23-5 package fits the available PCB footprint constraints.

Part Context

This part belongs to the TS7221 series of micropower comparators. It shares architectural similarities with other members like the TS7221BILT but differs in specific parameter tolerances and temperature ranges. The series is designed for applications where power efficiency is critical without sacrificing basic switching performance.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family, such as the TS7221BILT, ensuring functional equivalence in offset voltage and response time. Verify that any substitute maintains the same open-drain output structure and supply voltage limits.