TLE2426ILPR

Overview

The TLE2426ILPR is a precision virtual ground generator manufactured by Texas Instruments, designed to split a single power supply rail into positive and negative rails. It operates within an input voltage range of 4V to 40V and provides an adjustable output voltage between 2V and 20V. The device features a typical supply current of 400µA and can deliver up to 20mA of output current with a tolerance of ±1%. Packaged in a TO-92-3 through-hole format, it maintains a temperature coefficient of 35ppm/°C across an operating temperature range of -40°C to 85°C.

Feature Summary

• Generates a stable mid-supply reference voltage from a single power source
• Provides low-output impedance for improved load regulation
• Offers high accuracy with ±1% initial tolerance
• Supports bidirectional current sourcing and sinking capabilities

Applications

• Single-supply operational amplifier biasing
• Audio circuit virtual ground generation
• Data acquisition system reference voltage creation
• Analog signal processing intermediate potential establishment

Procurement Notes

Verify the specific package variant, as the ILPR suffix denotes tape and reel packaging within the TO-92 form factor. Confirm that the application environment remains within the specified -40°C to 85°C temperature range. Ensure input voltages do not exceed the 40V maximum limit to prevent device damage. Check for RoHS compliance requirements if applicable to the final assembly standards.

Selection Notes

Select this component when a low-cost, high-accuracy virtual ground is required for single-supply analog circuits. It is suitable for applications needing moderate current drive up to 20mA. Consider alternative packages like SOIC or PDIP if surface mount or higher thermal performance is needed. Evaluate noise specifications if the application involves sensitive low-level signal processing.

Part Context

This part belongs to the TLE2426 family of 'Rail Splitter' devices, which are specialized voltage references designed specifically for creating virtual grounds. Unlike standard voltage references, these devices actively maintain the output at half the input voltage, simplifying dual-rail power distribution from single supplies. The family includes various package options to suit different manufacturing and thermal requirements.

Replacement Considerations

Direct pin-compatible alternatives include other variants within the TLE2426 series such as TLE2426ID (SOIC-8) or TLE2426IP (PDIP-8), provided the package type matches the PCB layout. Verify that substitute components meet the same electrical specifications regarding input voltage range, output current capability, and temperature stability.