Texas Instruments TLE2426MDREP

Overview

TLE2426MDREP from Texas Instruments is a precision rail-splitter IC that generates a stable virtual ground at exactly one-half the input supply voltage (VO = VI/2) for single-supply analog systems. It delivers 20 mA sink/source capability, draws only 170 µA typical quiescent current at 5 V input, operates across 4 V to 40 V input range, and maintains ±0.1% output accuracy over −55°C to 125°C - enabling high-fidelity signal conditioning in isolated data-acquisition front ends.

For engineers reviewing the TLE2426MDREP datasheet, TLE2426MDREP pinout, TLE2426MDREP application, or TLE2426MDREP equivalent, this device serves as a drop-in replacement for resistor-capacitor-opamp ground-splitting networks - offering low-impedance (7.5 mΩ typ), low-noise (30 µV rms with CNR capacitor), and temperature-stable (25 ppm/°C typ) performance without external active components.

Technical Context

The TLE2426MDREP integrates a micropower operational amplifier with a laser-trimmed resistive divider on a single die to achieve precise VO/VI = 0.5 ratio across its full 4–40 V input range. Its internal architecture enables bidirectional output current handling (±20 mA typ) while maintaining sub-millivolt regulation error under load transients.

It features a dedicated noise-reduction (NR) pin that, when bypassed with a 1 µF capacitor, reduces output noise from 120 µV to 30 µV rms (10 Hz–10 kHz) and improves ripple rejection beyond 12-bit effective resolution. The device is qualified per JEDEC extended-temperature standards (−55°C to 125°C) with HAST, temperature cycling, and electromigration testing.

Key Specifications

Pinout & Package

Package: SOIC-8 (D package), 3.91 mm × 4.90 mm body, 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 rail-splitting applications.

Compared with LM334Z, TLE2426MDREP eliminates external components and delivers 10× lower noise and 50× better thermal stability; versus TLE2426CDR, it adds −55°C to 125°C qualification, enhanced manufacturing traceability, and long-term supply assurance for mission-critical systems.

Availability

TLE2426MDREP is available at Aetrix Electronics and suitable for data-acquisition front ends, analog signal termination circuits, and portable instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLE2426MDREP 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 over 90 years of innovation in high-reliability analog IC design.

The TLE2426MDREP belongs to TI's precision analog rail-splitter product line, engineered specifically for eliminating ground-loop errors and enabling true bipolar operation from single-ended supplies in rugged industrial and defense applications.

FAQ

What is the maximum input voltage rating for the TLE2426MDREP?

The TLE2426MDREP has an absolute maximum continuous input voltage rating of 40 V. Operation beyond this limit risks permanent damage. For reliable long-term use, TI specifies the recommended operating range as 4 V to 40 V - and the device maintains full performance (including ±0.1% output accuracy and 25 ppm/°C TC) across this entire span. Always observe derating guidelines above 70°C ambient.

Does the TLE2426MDREP require external components to function as a rail splitter?

The TLE2426MDREP operates as a complete rail splitter with only three external connections: IN, COMMON, and OUT. However, optimal noise performance requires a 1 µF capacitor between the NOISE REDUCTION pin and ground. No resistors, op-amps, or voltage references are needed - unlike discrete solutions - making the TLE2426MDREP a true single-chip VI/2 generator.

Can the TLE2426MDREP drive a 10 kΩ load while maintaining accuracy?

Yes - the TLE2426MDREP maintains ±0.1% output accuracy (e.g., 2.500 V ±2.5 mV at 5 V input) into a 10 kΩ load (0.25 mA), well within its ±20 mA sourcing/sinking capability. Output regulation error remains below ±0.121 mV for ±10 mA loads, confirming robustness even under heavier static loads typical of op-amp biasing or ADC reference buffering.

Is the TLE2426MDREP pin-compatible with other members of the TLE2426 family?

Yes - the TLE2426MDREP shares identical SOIC-8 (D package) pinout and electrical behavior with all TLE2426 variants including TLE2426CDR and TLE2426IDR. Differences are limited to temperature grade, qualification level, and packaging markings; no PCB layout changes are required when substituting within the same package type.

How does the noise-reduction (NR) pin improve system-level performance in the TLE2426MDREP?

The NR pin on the TLE2426MDREP connects to an internal 110 kΩ resistor tied to the op-amp's compensation node. Adding a 1 µF capacitor here reduces output noise from 120 µV to 30 µV rms (10 Hz–10 kHz) and increases ripple rejection by >20 dB - directly improving ENOB in 16-bit+ data converters and reducing post-processing filtering requirements in sensitive analog signal paths.