Texas Instruments THS3092DDA

Overview

THS3092DDA from Texas Instruments is a dual-channel, high-voltage, current-feedback operational amplifier designed for precision high-speed signal conditioning in demanding analog output stages. It delivers ±250 mA output drive, 160 MHz small-signal bandwidth (G = 5, RL = 100 Ω), −66 dBc 2nd harmonic distortion at 10 MHz, and 5700 V/µs slew rate under ±15 V supply - enabling use in high-fidelity arbitrary waveform generator driver circuits.

For engineers reviewing the THS3092DDA datasheet, THS3092DDA pinout, THS3092DDA application, or THS3092DDA equivalent, this page provides verified package mapping (SOIC-8 with PowerPAD™), confirmed dual-channel current-feedback architecture, validated thermal performance (2.18 W power rating at TA ≤ 25°C), and real-world application context for Pin driver, VDSL line driver, and high-voltage DAC output stage design.

Technical Context

The THS3092DDA employs a current-feedback topology with separate high-impedance noninverting input (1.3 MΩ) and low-impedance inverting input (30 Ω), enabling stable wideband operation up to 160 MHz without requiring gain-dependent compensation. Its transimpedance gain of 850 kΩ (±15 V, VO = ±7.5 V) defines closed-loop response when paired with external feedback resistors like 715 Ω for G = 5.

It operates across ±5 V to ±15 V dual supplies or 10 V to 30 V single supply, with rail-to-rail output swing capability (±12.5 V into 100 Ω at ±15 V). The SOIC-8-PP (DDA) package integrates an electrically isolated PowerPAD™ for enhanced thermal dissipation - critical for sustaining 2.18 W power rating at ambient ≤ 25°C.

Key Specifications

Pinout & Package

THS3092DDA uses an 8-pin SOIC package with exposed PowerPAD™ (DDA suffix), where the thermal pad is electrically isolated and must be soldered to a dedicated PCB copper pour for thermal management. The device contains two identical current-feedback op-amp channels sharing common supply pins.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage, low-distortion operational amplifier applications.

Compared with THS3092D, THS3092DDA offers 2.1× higher power handling via PowerPAD™; compared with THS3096D, it omits the power-down feature but retains identical thermal and electrical performance - making THS3092DDA optimal for fixed-power, high-reliability analog output stages.

Availability

THS3092DDA is available at Aetrix Electronics and suitable for high-voltage arbitrary waveform generator driver, VDSL line driver, and Pin diode driver applications requiring stable component supply, long-term industrial lifecycle support, and traceable manufacturing origin.

Supply support for THS3092DDA 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 digital signal technologies, with decades of expertise in high-performance op-amps and precision signal chain solutions.

The THS3092DDA belongs to TI's high-voltage current-feedback op-amp product line, engineered specifically for applications demanding large linear output swings, ultra-low distortion, and high slew rates - including communications infrastructure, test equipment, and industrial automation.

FAQ

What is the maximum safe operating junction temperature for THS3092DDA?

The THS3092DDA has a maximum junction temperature of 150°C for absolute ratings, but its continuous-operation limit for long-term reliability is 125°C. Exceeding 125°C causes substantial distortion increase and accelerated aging. With its DDA package ΘJA of 45.8°C/W, maintaining TJ ≤ 125°C requires keeping ambient temperature below 75°C when dissipating 1.1 W - achievable only with proper PowerPAD™ thermal connection to a ≥1-in² copper plane.

Does THS3092DDA support single-supply operation?

Yes, THS3092DDA supports single-supply operation from 10 V to 30 V. Its input common-mode range extends to within 1.4 V of either rail (e.g., ±3.6 V at ±5 V supply), and output swing reaches within 1.5 V of rails into 100 Ω. For true DC-coupled single-supply use, the noninverting inputs must be biased to mid-supply (e.g., 7.5 V for 15 V supply) using a low-impedance source to maintain stability and linearity - as shown in Figure 54 of the datasheet.

How does the PowerPAD™ on THS3092DDA affect PCB layout?

The PowerPAD™ on THS3092DDA is an electrically isolated thermal pad on the underside of the SOIC-8 package. It must be soldered to a dedicated, unbroken copper pour connected to no other net - typically tied to ground or left floating - and sized ≥100 mm² for optimal heat transfer. Thermal vias (≥6 × 0.3 mm) should connect the pad to inner-layer or backside copper planes. Failure to implement this results in junction temperatures exceeding 125°C even at moderate output power, risking permanent parametric shift.

Can THS3092DDA replace THS3092D in an existing design?

THS3092DDA is pin-compatible with THS3092D and shares identical electrical specifications, but its PowerPAD™ requires PCB redesign: the footprint must include a thermal pad with solder mask defined opening and thermal vias. Electrical performance improves (lower ΘJA, higher power handling), but mechanical compatibility is not guaranteed unless the board was pre-designed for DDA. No circuit changes are needed, but thermal validation is mandatory before substitution.

What feedback resistor values are recommended for G = 5 operation with THS3092DDA?

For G = 5 noninverting operation with THS3092DDA into 100 Ω load, TI specifies RF = 715 Ω and RG = 178 Ω (Table 1, datasheet SLOS428B). This combination minimizes peaking and maximizes bandwidth (160 MHz). Using standard 1% E96 values - 715 Ω and 178 Ω - achieves optimal stability. Deviations (e.g., 750 Ω/182 Ω) reduce bandwidth by ~5 MHz and increase gain peaking, degrading transient response and harmonic performance.