TLE2425CPS

Overview

The TLE2425CPS is a precision virtual ground reference IC from Texas Instruments, designed for single-supply analog systems. It provides a stable 2.5V output with an operating temperature range of 0°C to 70°C. The device accepts input voltages between 4V and 40V and delivers a typical sink or source current of 20 mA while consuming only 170 µA of bias current. Key electrical characteristics include a temperature coefficient of 20 ppm/°C, an output impedance of 7.5 mΩ, and ripple rejection of 80 dB at 120 Hz. Packaged in an 8-pin Small Outline (PS) format.

Feature Summary

• Combines a micropower voltage reference and high-performance operational amplifier on a single silicon chip
• Provides increased dynamic signal range and improved signal-to-noise ratio compared to discrete resistor-capacitor solutions
• Features excellent load and input regulation exceeding 12 bits of accuracy on a single 5-V system
• Includes a macro model for circuit simulation

Applications

• Signal-conditioning front ends for data acquisition systems
• Providing termination for signal grounds in single power source applications
• Interfacing with ADCs and DACs to improve signal accuracy

Procurement Notes

Verify the specific suffix 'C' confirms the commercial temperature range of 0°C to 70°C. Confirm the 'PS' designation corresponds to the 8-pin Small Outline package. Ensure compatibility with required supply voltages within the 4V to 40V range. Check for RoHS compliance status as indicated in the packaging addendum.

Selection Notes

Select this component when a precise mid-rail reference is needed for 5V/GND analog circuits without using external op-amps. Consider the 20 mA output capability for driving moderate loads directly. Evaluate the 170 µA quiescent current against system power constraints. Verify that the 0°C to 70°C operating range meets environmental requirements.

Part Context

The TLE2425 series eliminates traditional discrete virtual ground circuits consisting of resistors, capacitors, and operational amplifiers. By integrating these functions, it reduces output impedance and power dissipation. The device is part of a family including variants like the TLE2425ID and TLE2425MD for different temperature ranges and packages.

Replacement Considerations

TLE2425CD

FAQ

What is the maximum continuous input voltage?

The absolute maximum continuous input voltage is 40 V.

Does the TLE2425CPS support short-circuit protection?

Yes, the device can withstand unlimited duration short-circuit current at or below 25°C.