TLE2425CPSR

Overview

The TLE2425CPSR is a precision virtual ground generator manufactured by Texas Instruments, designed to provide a stable reference voltage for single-supply analog systems. It integrates a micropower voltage reference and a high-performance operational amplifier into a single silicon chip. The device delivers a fixed output voltage of 2.5 V with an input voltage range of 4 V to 40 V. It operates within a commercial temperature range of 0°C to 70°C and features a typical bias current of 170 µA. Packaged in an 8-pin Small Outline (SO) PS format, it supports surface-mount assembly via tape and reel.

Feature Summary

• Combines a precision micropower voltage reference with a high-performance operational amplifier on a single chip
• Provides excellent regulation characteristics including low output impedance and high ripple rejection
• Capable of sourcing or sinking up to 20 mA of output current
• Eliminates the need for external resistors, capacitors, and discrete op-amps typically required for virtual ground generation

Applications

• Signal-conditioning front ends for data acquisition systems
• Termination of signal grounds in single power source applications
• Interfacing to ADCs and DACs requiring improved dynamic signal range
• Generating offsets for data converter families

Procurement Notes

Verify that the specific orderable part number matches the required suffix configuration for the intended package type and manufacturing lot. Confirm compliance with RoHS directives and lead finish specifications as listed in the packaging addendum. Ensure the selected variant aligns with the necessary operating temperature range and moisture sensitivity level requirements for the target assembly process.

Selection Notes

Select this component when a precise mid-rail reference is needed for single-supply analog circuits without the complexity of discrete designs. The SO PS package facilitates automated surface-mount placement. Consider the thermal dissipation ratings and derating factors if operating near maximum ambient temperatures or under heavy load conditions to ensure reliability within the specified free-air temperature range.

Part Context

This device belongs to the TLE2425 family of precision virtual ground generators. It serves as a specialized solution for creating a stable reference point in analog signal paths, replacing traditional resistor-capacitor networks and operational amplifiers. The integration of these functions reduces system error sources and improves overall signal accuracy in precision measurement environments.

Replacement Considerations

TLE2425CDR

FAQ

What is the function of the NC pins on the SO PS package?

Pins 4 through 7 are designated as No Connection (NC), indicating there are no internal electrical connections to these terminals.

How does the TLE2425 improve system performance compared to discrete solutions?

It increases dynamic signal range, improves signal-to-noise ratio, lowers distortion, and enhances signal accuracy by integrating a precision reference and amplifier on one chip.