THS4131CDGNRG4

Instrumentation, Op Amps, Buffer Amps Overview

The THS4131CDGNRG4 is a high-speed, low-noise fully differential amplifier from Texas Instruments. It operates on a single supply of 5 V to 30 V or dual supplies of ±2.5 V to ±15 V. The device features a small-signal bandwidth of 170 MHz and a slew rate of 67 V/µs. Input voltage noise is 1.25 nV/√Hz with a 1/f corner at 350 Hz. Total harmonic distortion reaches –102 dBc at 2 VPP and 250 kHz. It functions within an operating temperature range of 0°C to +70°C and utilizes an 8-pin SOIC package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Provides true fully differential signal path from input to output for improved common-mode noise rejection.
• Supports wide supply ranges enabling high-voltage differential signal chains without separate polarity amplifiers.
• Delivers high dynamic range performance with low total harmonic distortion and spurious-free dynamic range.

Instrumentation, Op Amps, Buffer Amps Applications

• Single-ended to differential conversion
• Differential ADC driver
• Differential antialiasing
• Medical ultrasound

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'CDGNR' against the manufacturer's current orderable addendum to confirm active status and packaging details. Ensure the component meets RoHS compliance requirements for your assembly process. Confirm that the thermal pad connection strategy aligns with the HVSSOP package specifications for proper heat dissipation during operation.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a fully differential architecture is required for high-speed signal processing. It is suitable for applications demanding low noise and high linearity. Consider the 8-pin SOIC package constraints regarding thermal management and board space. Verify that the required gain bandwidth product and slew rate meet the system's frequency response needs.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the THS413x family of high-speed, low-noise fully differential amplifiers. The THS4131 variant specifically lacks a power-down pin, distinguishing it from the THS4130. Both devices share similar electrical characteristics but differ in functional modes. The family is designed for applications requiring high performance in analog signal chains.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

THS4130CDGNRG4: Includes a power-down pin; otherwise electrically compatible.

Instrumentation, Op Amps, Buffer Amps FAQ

Does the THS4131CDGNRG4 have a power-down feature?

No, the THS4131 does not include a power-down pin. The THS4130 variant includes an active-low power-down pin (PD).

What is the recommended resistor matching tolerance for optimal performance?

To maintain good output balance and optimize CMRR and PSRR, use 1% tolerance resistors or better in the feedback network.