TLE2425ID

Overview

The TLE2425ID is a precision virtual ground integrated circuit manufactured by Texas Instruments, designed to provide a stable 2.5V reference for single-supply analog systems. It combines a micropower voltage reference with a high-performance operational amplifier on a single silicon chip. The device operates within an input voltage range of 4V to 40V and supports an operating temperature range of -40°C to 85°C. Key electrical characteristics include a typical output current capability of 20mA (sink or source), a bias current of 170µA, and an output impedance of 7.5mΩ. The output voltage is specified at 2.5V with a temperature coefficient of 20ppm/°C.

Feature Summary

• Integrates a precision micropower voltage reference and a high-performance operational amplifier into a single three-terminal device.
• Provides excellent regulation characteristics including low output impedance and high ripple rejection.
• Eliminates the need for external resistors, capacitors, and discrete op-amps typically required for virtual ground generation.

Applications

• Signal-conditioning applications using a single power source requiring signal ground termination.
• Data acquisition system front ends requiring 12-bit accuracy or higher.
• Interfaces with Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs).

Procurement Notes

Verify the specific package type and suffix against the latest Texas Instruments documentation before procurement. Confirm that the I-suffix designation matches the required industrial temperature range of -40°C to 85°C for your application environment. Ensure compatibility with the SOIC (D) package dimensions if surface mount assembly is planned.

Selection Notes

Select the TLE2425ID when a precise 2.5V virtual ground is needed for 5V/GND analog systems. It is suitable for designs requiring reduced component count compared to discrete solutions. Consider the 20mA output current capability and 170µA quiescent current for power budget calculations. Verify that the input voltage range of 4V to 40V aligns with the system supply rails.

Part Context

The TLE2425 series includes variants such as the TLE2425CD (commercial), TLE2425ID (industrial), and TLE2425MD (military). The ID variant specifically denotes the industrial temperature grade. Other packages available in the family include TO-92 (LP) and Small Outline (PS). The device is part of Texas Instruments' portfolio for precision voltage references and power management ICs.

Replacement Considerations

TLE2425IDG4