Texas Instruments THS4022IDGN

Overview

THS4022IDGN 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 and delivers 200mA output current per channel - ideal for ultrasound scanner front-end amplification where signal fidelity and wide dynamic range are critical.

For engineers reviewing the THS4022IDGN datasheet, THS4022IDGN pinout, THS4022IDGN application, or THS4022IDGN equivalent, key selection criteria include its dual-channel HVSSOP-8 package, gain stability at 10V/V+, low distortion (–68dBc at 1MHz), ±4.5V to ±16V dual-supply operation, and verified performance in precision analog acquisition and high-frequency signal conditioning.

Technical Context

The THS4022IDGN employs a voltage-feedback architecture optimized for high closed-loop bandwidth (290MHz at G=10) and fast transient response (30ns to 0.1%). Its internal compensation ensures unconditional stability at gains ≥10V/V without external components, while maintaining low input voltage noise (1.2nV/√Hz) and high output drive capability (200mA).

It operates across ±4.5V to ±16V supplies, supports rail-to-rail output swing within load constraints (±12.9V into 250Ω), and achieves –68dBc THD at 1MHz with 2Vpp output into 150Ω - enabling high-fidelity signal amplification in demanding AC-coupled measurement paths.

Key Specifications

Pinout & Package

HVSSOP-8 (DGN) package: thermally enhanced, 8-pin surface-mount with exposed thermal pad; footprint compatible with SOIC-8 but 30% smaller area and lower thermal resistance (R_θJA = 52°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMH6629MA/NOPB and ADA4898-2ARZ, THS4022IDGN uniquely balances 2GHz GBW, 1.2nV/√Hz noise, and 200mA drive in a compact HVSSOP-8 - making it optimal for dual-channel, high-fidelity, wideband analog signal conditioning where speed, noise, and drive co-constrain the design.

Availability

THS4022IDGN is available at Aetrix Electronics and suitable for ultrasound scanner front-ends, source measurement units (SMUs), and power quality meters requiring stable component supply, long-term manufacturability, and guaranteed traceability.

Supply support for THS4022IDGN 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 THS402x family was designed specifically for high-fidelity, wideband analog signal conditioning in medical imaging, automated test equipment, and precision measurement systems - emphasizing low noise, high speed, and robust output drive.

FAQ

What is the maximum operating temperature range for the THS4022IDGN?

The THS4022IDGN is specified for operation from –40°C to +85°C (I-suffix grade). Its thermal metrics - including R_θJA = 52°C/W and R_θJC(bot) = 9.1°C/W - support reliable operation in industrial environments when mounted on a 2-layer PCB with adequate copper pour under the exposed thermal pad. Derating applies above 70°C ambient per TI's recommended operating conditions.

Does the THS4022IDGN require external compensation for stability at gain = 10V/V?

No, the THS4022IDGN is internally compensated and unconditionally stable at gains ≥10V/V (and ≤–9V/V) without external components. This is confirmed in Section 3 of the datasheet and validated by the 290MHz closed-loop bandwidth and clean 30ns step response shown in Figures 5-21 through 5-23. External compensation is only needed for gains <10V/V.

What is the typical output voltage swing of the THS4022IDGN with ±15V supplies?

With ±15V supplies and a 250Ω load, the THS4022IDGN delivers ±12.9V typical output swing (i.e., 25.8Vpp). At 1kΩ load, it achieves ±13.6V. These values are measured under standard test conditions (TA = 25°C, RL = 250Ω or 1kΩ) and reflect its high-output-drive capability - critical for driving cables or active filters without clipping.

How does the THS4022IDGN compare to the single-channel THS4021 in terms of noise and bandwidth?

The THS4022IDGN shares identical noise (1.2nV/√Hz) and small-signal bandwidth (290MHz at G=10) specifications with the THS4021DGN variant. Both use the same core die architecture; the THS4022IDGN integrates two matched amplifiers in one HVSSOP-8 package, offering space and cost savings versus dual THS4021DGNs - with verified –54dBc channel-to-channel crosstalk at 1MHz.

Can the THS4022IDGN be used with single-supply operation?

Yes, the THS4022IDGN supports single-supply operation from 9V to 32V (per Section 5.3). Input common-mode range extends to within 1.2V of rails (e.g., VICR = ±3.8V at ±5V supply), and output swing reaches within ~1.5V of each rail depending on load. For true rail-to-rail input/output, external level-shifting or biasing is required - but many SMU and data acquisition designs successfully implement it with 12V or 24V single supplies and appropriate DC bias networks.