Texas Instruments THS4022ID

Overview

THS4022ID from Texas Instruments is a dual-channel, ultra-low-noise (1.2nV/√Hz), high-speed voltage-feedback operational amplifier, stable at gains ≥10V/V, with 290MHz closed-loop bandwidth, 470V/μs slew rate, and 30ns settling time (0.1%). It drives ±12.9V into 250Ω at ±15V supplies and supports ultrasound scanner front-ends requiring precision signal conditioning.

For engineers reviewing the THS4022ID datasheet, THS4022ID pinout, THS4022ID application, or THS4022ID equivalent, key selection criteria include gain stability at 10V/V, low distortion (–68dBc @1MHz), dual-channel crosstalk (–54dBc), wide supply range (±4.5V to ±16V), and HVSSOP-8 thermal performance (RθJA = 52°C/W).

Technical Context

The THS4022ID employs a voltage-feedback architecture optimized for high closed-loop gain stability (≥10V/V) without external compensation. Its 2GHz gain-bandwidth product enables wideband signal amplification while maintaining low phase error (0.08°) and differential gain error (0.02%) in video and imaging applications.

It delivers symmetrical output drive capability (±200mA peak) with rail-to-rail input common-mode range (±14.3V at ±15V supplies) and integrates dual independent amplifiers sharing only power rails-enabling matched channel performance with –54dBc crosstalk at 1MHz.

Key Specifications

Pinout & Package

The THS4022ID is packaged in an 8-pin HVSSOP (DGN) package with exposed thermal pad, offering 52°C/W junction-to-ambient thermal resistance and compatibility with standard surface-mount reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with THS4022ID, THS4032DGN trades marginally higher noise for +60MHz bandwidth, while LMH6629MA/NOPB offers best-in-class noise but requires two units and additional layout area to match dual functionality.

Availability

THS4022ID is available at Aetrix Electronics and suitable for ultrasound scanner front-ends, source measurement units, and power quality meters requiring stable component supply, long-term manufacturability, and TI-qualified industrial temperature grade (–40°C to +85°C).

Supply support for THS4022ID 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 delivering analog and embedded processing solutions for industrial, automotive, and communications markets.

The THS402x family was designed specifically for high-fidelity, wideband analog signal conditioning in medical imaging, precision test equipment, and power analytics systems requiring low noise, high speed, and gain stability.

FAQ

What is the minimum stable gain for THS4022ID?

The THS4022ID is unconditionally stable at closed-loop gains of 10V/V and higher. It does not require external compensation networks when configured for G ≥ 10V/V, making it ideal for fixed-gain instrumentation amplifier stages. Gain-of-10 stability is verified across temperature (–40°C to +85°C) and supply voltage (±4.5V to ±16V). This characteristic simplifies design and improves reliability in production systems using THS4022ID.

Does THS4022ID support single-supply operation?

Yes, THS4022ID supports single-supply operation from 9V to 32V. When operated on a single rail, the input common-mode range extends to within 1.2V of the negative rail and 1.7V below the positive rail (e.g., VICR = 1.2V to 30.3V at VCC = 32V). Output swing reaches within 1.1V of each rail under typical load conditions. Designers must bias inputs appropriately and verify headroom for the intended signal range when using THS4022ID in single-supply configurations.

What is the thermal resistance (RθJA) of THS4022ID?

The THS4022ID in the HVSSOP-8 (DGN) package has a junction-to-ambient thermal resistance (RθJA) of 52°C/W under standard JEDEC JESD51-7 PCB conditions (2-layer board, 1-in² copper). This value assumes proper thermal pad soldering to a dedicated ground plane. With its low RθJA and exposed thermal pad, THS4022ID sustains full 200mA output current without exceeding 150°C junction temperature at +85°C ambient-critical for continuous-duty applications like SMU output stages.

How does THS4022ID handle crosstalk between channels?

THS4022ID specifies –54dBc channel-to-channel crosstalk at 1MHz, measured with one channel driven and the other terminated. This performance results from physical separation of input/output routing and independent internal amplifier cores sharing only power rails. In practice, this crosstalk level ensures <0.2% signal coupling between channels-sufficient for I/Q demodulation, dual-sensor readout, and parallel ADC driving where inter-channel isolation is essential. Layout best practices (separate ground returns, guard traces) further reduce measured crosstalk below datasheet limits.

Can THS4022ID drive a 50Ω load directly?

THS4022ID can drive a 50Ω load, but output swing is reduced: at ±15V supplies, VO = ±10.5V (typical) into 50Ω, versus ±12.9V into 250Ω. Peak output current reaches ±200mA, so continuous 50Ω operation requires thermal verification-junction temperature must remain ≤150°C. For sustained 50Ω driving, use external current-boosting circuitry or limit duty cycle. THS4022ID is optimized for 150Ω–1kΩ loads; for 50Ω systems, consider adding a series resistor or buffer stage to maintain signal integrity and thermal safety.