THS3120CDR

Instrumentation, Op Amps, Buffer Amps Overview

The THS3120CDR is a low-noise, high-output drive, current-feedback operational amplifier manufactured by Texas Instruments. It operates over a wide supply range of ±5 V to ±15 V (single supply 10 V to 30 V). Key electrical parameters include a small-signal bandwidth of 120 MHz at G=2 and a slew rate of 1700 V/µs. The device features a power-down pin for reducing quiescent current. It is housed in an SOIC-8 (D) package with a commercial operating temperature range of 0°C to +70°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• High output current drive capability
• Low noise performance with dedicated voltage and current noise specifications
• Power-down feature for reduced quiescent current consumption

Instrumentation, Op Amps, Buffer Amps Applications

• Video distribution
• Power FET driver
• Pin driver
• Capacitive load driver

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'CDR' corresponds to the commercial temperature grade (0°C to +70°C) and the SOIC-8 tape and reel packaging format. Confirm that the component matches the exact manufacturer part number provided, as TI offers variants such as the THS3121 which lacks the power-down functionality.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high-speed signal processing requires a current-feedback architecture with significant output drive strength. The inclusion of a power-down pin makes it suitable for battery-operated or energy-efficient systems requiring periodic sleep modes. Ensure the application benefits from its wide supply voltage flexibility compared to lower-voltage alternatives.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the THS312x family of high-performance current-feedback amplifiers. It shares architectural similarities with the THS3121 but includes an additional power-down control pin. The family is designed for applications demanding fast transient response and high linearity across a broad frequency spectrum.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The THS3121 serves as a functional substitute if the power-down capability is not required. Verify that the replacement maintains compatibility with the existing PCB footprint and thermal dissipation requirements.