TLE2425MD

Overview

The TLE2425MD is a precision virtual ground integrated circuit manufactured by Texas Instruments, designed for single-supply analog systems. It provides a stable 2.5V reference voltage relative to system ground. The device operates within an input voltage range of 4V to 40V and supports an operating free-air temperature range from -55°C to 125°C. It features a typical bias current of 170 µA and delivers a typical output current capability of 20 mA in both sourcing and sinking modes. The unit is housed in an 8-pin Small Outline (D) package.

Feature Summary

• Integrates a micropower voltage reference with a high-performance operational amplifier on a single silicon chip to eliminate external components typically required for virtual ground generation.
• Provides excellent regulation characteristics including low output impedance and high input voltage regulation to maintain accuracy across varying load and supply conditions.
• Capable of sinking or sourcing up to 20 mA typ, allowing direct interfacing with data converters and signal conditioning circuits without additional buffering.

Applications

• Signal-conditioning front ends for data acquisition systems requiring precise termination of signal grounds.
• Providing a mid-supply reference for single-supply operational amplifier circuits.
• Interfacing with Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs) to improve signal accuracy and dynamic range.

Procurement Notes

Verify the specific suffix 'MD' corresponds to the military-grade temperature range (-55°C to 125°C) and SOIC-8 package configuration. Confirm RoHS compliance status and lead finish details via the latest Package Option Addendum. Ensure design requirements align with the absolute maximum ratings, particularly regarding continuous power dissipation and short-circuit duration limits.

Selection Notes

Select the TLE2425MD when operation in extreme environments below -40°C or above 85°C is required, as other suffixes like 'ID' are limited to industrial ranges. Consider the 8-pin SOIC footprint constraints versus TO-92 options if board space permits alternative packages. Evaluate thermal dissipation needs based on the derating factor provided in the datasheet for the specific ambient temperature conditions.

Part Context

This component belongs to the TLE2425 family of precision virtual grounds. While the base TLE2425 designation covers the general functionality, the 'M' suffix specifically denotes the extended military temperature rating. The 'D' indicates the plastic small outline package variant. This distinguishes it from commercial (C) and industrial (I) variants which have narrower operating temperature specifications.

Replacement Considerations

TLE2425MD.A