Texas Instruments TLE2425CPS

Overview

TLE2425CPS from Texas Instruments is a precision 2.5-V virtual ground generator IC designed for single-supply 5-V analog signal-conditioning systems. It integrates a micropower voltage reference and high-performance op-amp in one SO package, delivering ±20 mA output current, 7.5 mΩ typical output impedance, and 2.5 V ±20 mV output accuracy across 0°C to 70°C - enabling accurate biasing of ADCs, DACs, and op-amp mid-rail interfaces in data acquisition front ends.

For engineers reviewing the TLE2425CPS datasheet, TLE2425CPS pinout, TLE2425CPS application, or TLE2425CPS equivalent, key selection criteria include its 170 µA typical quiescent current, ±45 µV load regulation (sink), 1.5 µV/V input regulation, 80 dB ripple rejection at 120 Hz, and compatibility with 100 pF load capacitance - all critical for low-noise, high-resolution analog subsystems requiring stable mid-rail references.

Technical Context

The TLE2425CPS implements a monolithic precision architecture combining a bandgap voltage reference with a unity-gain buffered output stage, optimized for virtual ground generation rather than general-purpose amplification. Its internal design achieves sub-100 µV total regulation error over full load and temperature range, with dynamic response characterized by 115 µs settling to 0.1% after ±10 mA current steps.

Unlike discrete resistor-divider solutions, the TLE2425CPS provides active regulation against supply variation and load transients, maintaining 12-bit+ accuracy on 5-V rails. Its low 7.5 mΩ output impedance and 100 µV_RMS noise (10 Hz–10 kHz) support high-fidelity signal chains where ground bounce and reference drift degrade system SNR.

Key Specifications

Pinout & Package

Package: SO (PS) - 8-pin small-outline package, 1.75 mm max height, RoHS-compliant NIPDAU lead finish, MSL Level-1, tape-and-reel or tube delivery. Pin 1 orientation marked with Q2425 top-side marking and quadrants per JEDEC standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar virtual ground generator applications.

Compared with TLV2425IDR and REF2025AIDBVR, the TLE2425CPS uniquely delivers integrated 2.5-V regulation plus ±20 mA drive in an SO-8 package - eliminating external components while maintaining 0°C to 70°C industrial qualification and 7.5 mΩ output impedance for high-fidelity analog biasing.

Availability

TLE2425CPS is available at Aetrix Electronics and suitable for data acquisition front ends, single-supply op-amp biasing, and DAC output buffering requiring stable component supply, long-term calibration integrity, and industrial-grade temperature performance.

Supply support for TLE2425CPS includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of heritage in precision analog ICs and reference solutions.

The TLE2425CPS belongs to TI's precision virtual ground generator product line, engineered specifically to replace passive resistor networks in 5-V analog signal chains - targeting high-resolution data acquisition, sensor interface, and mixed-signal instrumentation applications.

FAQ

What is the primary function of the TLE2425CPS?

The TLE2425CPS is a precision 2.5-V virtual ground generator that provides a stable, low-impedance mid-rail reference for single-supply 5-V analog systems. It replaces resistor-divider networks by integrating a voltage reference and unity-gain buffer, enabling accurate biasing of ADCs, DACs, and op-amps without external components. Its design ensures ±45 µV load regulation and 7.5 mΩ output impedance - critical for maintaining signal fidelity in high-resolution applications.

Does the TLE2425CPS require external capacitors for stability?

No, the TLE2425CPS is internally compensated and stable with up to 100 pF of capacitive load, as verified in the official datasheet. This eliminates the need for external compensation capacitors in most applications, simplifying layout and reducing BOM count. However, a 0.1 µF ceramic bypass capacitor between IN and COMMON is recommended near the device for high-frequency supply noise suppression - a standard practice, not a stability requirement.

Can the TLE2425CPS operate from input voltages other than 5 V?

Yes, the TLE2425CPS supports input voltages from 4 V to 40 V, with specified performance across that range. At 5 V it delivers optimal regulation (1.5 µV/V input regulation), but it maintains 2.5 V ±30 mV output accuracy even at 40 V input. This wide input range allows use with unregulated wall adapters, battery stacks, or industrial 24-V rails - provided power dissipation remains within the SO (PS) package's 496 mW rating at 25°C.

How does the TLE2425CPS compare to using a resistor divider and op-amp separately?

The TLE2425CPS integrates the precision reference and buffer into a single die, achieving tighter matching, lower drift, and better PSRR than discrete solutions. A resistor divider suffers from ratio drift, thermal gradients, and poor load regulation; adding an op-amp introduces offset, noise, and stability risks. The TLE2425CPS guarantees ±45 µV load regulation, 100 µV_RMS noise, and 80 dB ripple rejection - performance unattainable with typical discrete implementations without extensive trimming and filtering.

What is the maximum continuous output current for the TLE2425CPS?

The TLE2425CPS is rated for ±20 mA typical continuous output current, with absolute maximum ratings of ±80 mA. At ±20 mA, output voltage deviation remains within ±45 µV (sink) and ±15 µV (source) - preserving 16-bit-equivalent accuracy. For sustained ±20 mA operation, ensure junction temperature stays below 125°C using the SO (PS) package's 6.2 mW/°C derating factor and appropriate PCB copper area, especially above 70°C ambient.