TLE2426QDRQ1

Overview

The TLE2426QDRQ1 is an automotive-grade virtual ground reference IC from Texas Instruments, designed to split a single power supply into positive and negative rails. It operates within a supply voltage range of 4 V to 40 V and provides an adjustable output voltage between 2 V and 20 V. The device features an initial accuracy of ±1% and a temperature coefficient of 25 ppm/°C. It supports a maximum shunt current of 20 mA and draws a supply current of 400 µA. Operating temperatures range from -40°C to +125°C. The component is housed in an 8-SOIC package and holds AEC-Q100 qualification for automotive applications.

Feature Summary

• Provides a stable virtual ground reference by splitting a single-ended supply into dual polarities
• Automotive-grade reliability with AEC-Q100 qualification for harsh environment operation
• High precision performance with low temperature drift and tight initial accuracy tolerance

Applications

• Dual-supply biasing for operational amplifiers in automotive sensor interfaces
• Virtual ground generation for analog-to-digital converter input stages
• Signal conditioning circuits requiring symmetrical power rails from a single source

Procurement Notes

Verify the specific suffix QDRG4 or QDRQ1 against the official Texas Instruments datasheet to confirm pinout compatibility and automotive grade status. Ensure the ordering part number matches the required package type and temperature rating. Cross-reference the manufacturer's latest product change notifications to confirm availability and lifecycle status before finalizing procurement plans.

Selection Notes

Select this component when a single supply rail must be converted to a bipolar reference for analog circuitry. The AEC-Q100 certification makes it suitable for automotive systems where thermal stability and long-term reliability are critical. Compare the 25 ppm/°C temperature coefficient against system requirements to ensure sufficient precision over the operating temperature range.

Part Context

This device belongs to the TLE2426 family of rail splitter integrated circuits. The Q1 suffix denotes automotive qualification under AEC-Q100 standards. It serves as a foundational building block for creating dual-polarity power environments in systems that only provide a single positive voltage source, commonly found in instrumentation and control modules.

Replacement Considerations

Public confirmed substitute part numbers: TLE2426CDR, TLE2426IDR, TLE2426IP.