Texas Instruments THS3092DDAR

Overview

THS3092DDAR from Texas Instruments is a dual-channel, high-voltage, current-feedback operational amplifier designed for high-fidelity arbitrary waveform generation and high-slew-rate output driving. It delivers ±250 mA output current, 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 precise high-voltage signal reproduction in test equipment and line drivers.

For engineers reviewing the THS3092DDAR datasheet, THS3092DDAR pinout, THS3092DDAR application, or THS3092DDAR equivalent, this page provides verified technical context, package-validated pin functions, real-world application mappings, and two confirmed alternative parts with documented functional trade-offs for high-speed, high-output-current amplifier selection.

Technical Context

The THS3092DDAR employs a current-feedback architecture optimized for wide bandwidth and fast settling - achieving 42 ns to 0.1% and 72 ns to 0.01% for a 2 VPP step (G = −2). Its input stage features matched 13 pA/√Hz current noise on both inverting and noninverting inputs, and 2 nV/√Hz voltage noise, supporting low-noise, high-dynamic-range signal conditioning.

It operates across ±5 V to ±15 V dual supplies (or 10–30 V single supply), with rail-to-rail output swing up to ±12.5 V into 100 Ω and common-mode input range of ±13.6 V at 25°C. The device lacks power-down functionality (distinguishing it from THS3096), and uses external feedback resistors (e.g., RF = 715 Ω for G = 5) for gain setting and stability control.

Key Specifications

Pinout & Package

THS3092DDAR is housed in an 8-pin SOIC package with PowerPAD™ thermal pad (DDA suffix), requiring PCB thermal plane connection for rated 2.18 W dissipation at TA ≤ 25°C. The PowerPAD is electrically isolated from all pins.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed, high-output-current amplifier applications.

Compared with THS3096D, THS3092DDAR eliminates unnecessary power-down circuitry for always-on systems, improving reliability and reducing layout complexity; versus THS3202D, it trades bandwidth for robust output drive and lower distortion - making THS3092DDAR the optimal choice for high-fidelity, high-current analog output stages.

Availability

THS3092DDAR is available at Aetrix Electronics and suitable for arbitrary waveform generator driver, VDSL line driver, and high-speed data acquisition buffer applications requiring stable component supply, long-term industrial lifecycle support, and traceable sourcing.

Supply support for THS3092DDAR 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 and embedded processing technologies, with decades of expertise in high-performance op-amps and signal chain solutions.

The THS3092DDAR belongs to TI's high-voltage, low-distortion current-feedback op-amp family, engineered specifically for demanding applications like arbitrary waveform generation, VDSL line driving, and high-current analog output stages.

FAQ

What is the maximum output voltage swing of THS3092DDAR into a 100 Ω load?

The THS3092DDAR delivers ±12.5 V output voltage swing into a 100 Ω load at ±15 V supply and 25°C ambient temperature, as specified in the Electrical Characteristics table. This is validated across −40°C to 85°C operating range, with minimum swing of ±11.8 V at 85°C. Performance degrades linearly with reduced supply voltage - e.g., ±3.1 V swing into 100 Ω at ±5 V supply.

Does THS3092DDAR support single-supply operation?

Yes, THS3092DDAR supports single-supply operation from 10 V to 30 V, as confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions tables. Input common-mode range extends to within 1.4 V of the negative rail, and output can swing within 1.5 V of either rail - enabling DC-coupled configurations with proper level-shifting, such as in VDSL driver circuits shown in Figure 54 of the datasheet.

What is the recommended feedback resistor for G = 5 configuration with THS3092DDAR?

The datasheet specifies RF = 715 Ω for G = 5 with RL = 100 Ω to achieve optimal bandwidth and minimal peaking, as listed in Table 1 (Recommended Resistor Values). This value is validated for both ±5 V and ±15 V supplies. Using RF = 715 Ω with RG = 178 Ω yields stable 160 MHz bandwidth at ±15 V, while deviations introduce measurable peaking or bandwidth reduction.

How does THS3092DDAR differ from THS3096 in pin compatibility and functionality?

THS3092DDAR and THS3096 share identical pinout and electrical specifications for Channels 1 and 2, but THS3096 adds a dedicated power-down (PD) pin (Pin 12 in TSSOP, unused in SOIC) and REF pin (Pin 13). THS3092DDAR has no PD functionality - its quiescent current remains fixed at 9.5 mA/channel. Thus, THS3092DDAR is not pin-compatible with THS3096 in packages that expose PD/REF, though SOIC-8 variants share footprint.

Is PowerPAD™ thermal pad required for THS3092DDAR operation?

Yes - the PowerPAD™ on the underside of THS3092DDAR (SOIC-8-PP package) must be soldered to a thermally conductive PCB plane to achieve rated power dissipation (2.18 W at TA ≤ 25°C). Without thermal connection, junction temperature exceeds 125°C under typical load conditions, causing distortion increase and potential long-term reliability failure. TI Technical Brief SLMA002 details proper implementation.