Texas Instruments TLE2425IDRG4

Overview

TLE2425IDRG4 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 an 8-pin SOIC package, delivering ±20 mA output current, 7.5 mΩ typical output impedance, and 170 µA quiescent bias current. It enables accurate mid-rail biasing in data acquisition front ends, ADC/DAC interfaces, and sensor signal chains requiring stable 12-bit+ accuracy.

For engineers reviewing the TLE2425IDRG4 datasheet, TLE2425IDRG4 pinout, TLE2425IDRG4 application, or TLE2425IDRG4 equivalent, key selection criteria include output regulation (±45 µV over −10 to +10 mA), input voltage regulation (1.5 µV/V), temperature coefficient (20 ppm/°C), low-noise operation (100 µV rms), and wide operating range (−40°C to +85°C).

Technical Context

The TLE2425IDRG4 implements a monolithic precision rail-splitter architecture combining a bandgap voltage reference with a unity-gain buffer amplifier. Its internal design achieves high PSRR (80 dB at 120 Hz) and fast transient response (12 µs to 0.1% on input step, 115 µs to 0.1% on ±10 mA output step).

It operates across VI = 4 V to 40 V with guaranteed performance over −40°C to +85°C, supports capacitive loads up to 100 pF while maintaining stability, and features no-external-component operation-eliminating discrete resistor-divider networks and external op-amps traditionally used for virtual ground generation.

Key Specifications

Pinout & Package

Package: SOIC-8 (D package), 3.91 mm × 4.90 mm, 1.75 mm max height, RoHS-compliant NIPDAU lead finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLE2425IDRG4, TLE2426CDR offers higher drive but narrower temperature range, while LM336Z-2.5 demands external circuitry that increases noise, reduces accuracy, and occupies 3× more PCB area-making TLE2425IDRG4 optimal for compact, high-accuracy, industrial-grade virtual ground generation.

Availability

TLE2425IDRG4 is available at Aetrix Electronics and suitable for instrumentation signal conditioning, data acquisition front ends, and sensor interface circuits requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for TLE2425IDRG4 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 power management technologies, with decades of heritage in precision analog ICs.

The TLE2425 series belongs to TI's precision rail-splitter product line, engineered specifically to replace discrete virtual ground solutions in high-resolution data acquisition, sensor signal chains, and portable instrumentation where accuracy, size, and power efficiency are critical.

FAQ

What is the primary function of the TLE2425IDRG4?

The TLE2425IDRG4 is a monolithic 2.5-V virtual ground generator that replaces resistor-divider networks and external op-amps in single-supply 5-V analog systems. It provides a stable, low-impedance, precision mid-rail reference for ADCs, DACs, op-amps, and sensor interfaces-enabling full-scale signal swing without external components. Its architecture integrates a bandgap reference and unity-gain buffer in one SOIC-8 device.

Does the TLE2425IDRG4 require external capacitors for stability?

Yes, the TLE2425IDRG4 requires a minimum 1-µF ceramic decoupling capacitor between IN and COMMON pins, placed as close as possible to the device. For optimal transient response and noise rejection, TI recommends adding a 0.1-µF capacitor in parallel. The device is stable with up to 100 pF capacitive load on the OUT pin without series isolation resistors-verified across −40°C to +85°C.

Can the TLE2425IDRG4 operate from supplies other than 5 V?

Yes, the TLE2425IDRG4 supports input voltages from 4 V to 40 V. While optimized for 5-V systems, it maintains specified output accuracy (2.5 V ±20 mV) and regulation performance across this full range. Input regulation is 1.5 µV/V typical, meaning a 1-V supply variation induces only ~1.5 µV output change-making it robust in industrial 12-V or 24-V derived 5-V rails with ripple.

How does the TLE2425IDRG4 compare to using a resistor divider and op-amp?

The TLE2425IDRG4 delivers superior performance versus discrete solutions: it achieves 7.5 mΩ output impedance (vs ≥100 mΩ typical with op-amps), 100 µV rms noise (vs ≥200 µV with general-purpose op-amps), and 20 ppm/°C tempco (vs ≥50 ppm/°C with resistor dividers). It also eliminates layout sensitivity, matching errors, and thermal gradients inherent in discrete designs-directly improving system-level accuracy and reducing design validation time for the TLE2425IDRG4.

Is the TLE2425IDRG4 pin-compatible with other variants in the TLE2425 family?

Yes, all TLE2425 variants-including TLE2425CD, TLE2425ID, TLE2425MD, and TLE2425IDRG4-share identical SOIC-8 (D) pinout and electrical behavior. The suffix denotes temperature grade (I = −40°C to +85°C) and packaging (RG4 = tape-and-reel, 2500 pcs). No PCB redesign is needed when upgrading from TLE2425ID to TLE2425IDRG4; only procurement and handling logistics differ.