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High-speed op amps (GBW ≥ 50 MHz)

THS3091

ACTIVE

Single, high-voltage low-distortion current-feedback operational amplifier

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Data sheet

THS3091

ACTIVE
Data sheet Order now

Product details

Architecture Current FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 10 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 32 GBW (typ) (MHz) 305 BW at Acl (MHz) 715 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 6000 Vn at flatband (typ) (nV√Hz) 1.1 Vn at 1 kHz (typ) (nV√Hz) 1.9 Iq per channel (typ) (mA) 9.5 Vos (offset voltage at 25°C) (max) (mV) 2 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 78 Input bias current (max) (pA) 15000000 Offset drift (typ) (µV/°C) 19 Iout (typ) (mA) 310 2nd harmonic (dBc) 84 3rd harmonic (dBc) 99 Frequency of harmonic distortion measurement (MHz) 10
Architecture Current FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 10 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 32 GBW (typ) (MHz) 305 BW at Acl (MHz) 715 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 6000 Vn at flatband (typ) (nV√Hz) 1.1 Vn at 1 kHz (typ) (nV√Hz) 1.9 Iq per channel (typ) (mA) 9.5 Vos (offset voltage at 25°C) (max) (mV) 2 Rail-to-rail No Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 78 Input bias current (max) (pA) 15000000 Offset drift (typ) (µV/°C) 19 Iout (typ) (mA) 310 2nd harmonic (dBc) 84 3rd harmonic (dBc) 99 Frequency of harmonic distortion measurement (MHz) 10
HVSSOP (DGN) 8 14.7 mm² (3 mm × 4.9 mm) HSOIC (DDA) 8 29.4 mm² (4.9 mm × 6 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Low distortion:
    • 84-dBc HD2 at 10 MHz, R L = 1 kΩ
    • 99-dBc HD3 at 10 MHz, R L = 1 kΩ
  • Low noise:
    • 15-pA/√ Hz noninverting current noise
    • 14-pA/√ Hz inverting current noise
    • 1.1-nV/√ Hz voltage noise
  • High slew rate: 6000 V/µs (G = 5, V O = 20 V PP)
  • Wide bandwidth: 305 MHz (G = 2, R L = 100 Ω)
  • High output current drive: ±310 mA
  • Wide supply range: ±5 V to ±16 V
  • Power-down feature: THS3095 only
  • Low distortion:
    • 84-dBc HD2 at 10 MHz, R L = 1 kΩ
    • 99-dBc HD3 at 10 MHz, R L = 1 kΩ
  • Low noise:
    • 15-pA/√ Hz noninverting current noise
    • 14-pA/√ Hz inverting current noise
    • 1.1-nV/√ Hz voltage noise
  • High slew rate: 6000 V/µs (G = 5, V O = 20 V PP)
  • Wide bandwidth: 305 MHz (G = 2, R L = 100 Ω)
  • High output current drive: ±310 mA
  • Wide supply range: ±5 V to ±16 V
  • Power-down feature: THS3095 only

The THS3091 and THS3095 (THS309x) are high-voltage, low-distortion, high-speed, current-feedback amplifiers that operate over a wide supply range of ±5 V to ±16 V. These devices are an excellent choice for applications that require large, linear output signals, such as pin drivers, power-FET drivers, and arbitrary waveform generators.

The THS3095 features a power-down pin ( PD) that puts the amplifier into a low-power standby mode, and lowers the quiescent current from 9.5 mA to 500 µA.

The wide, 32‑V supply range, 6000‑V/µs slew-rate, and 310‑mA output current drive make the THS309x an excellent choice for high-voltage arbitrary-waveform-driver applications. Moreover, with the ability to handle large voltage swings driving into low-resistance and high-capacitance loads while maintaining good settling time performance, these devices are an excellent choice for pin-driver and power-FET driver applications.

The THS309x are offered in an 8‑pin SOIC (DDA) PowerPAD™ integrated circuit package. The THS3091 is also offered in an 8‑pin HVSSOP (DGN) package.

The THS3091 and THS3095 (THS309x) are high-voltage, low-distortion, high-speed, current-feedback amplifiers that operate over a wide supply range of ±5 V to ±16 V. These devices are an excellent choice for applications that require large, linear output signals, such as pin drivers, power-FET drivers, and arbitrary waveform generators.

The THS3095 features a power-down pin ( PD) that puts the amplifier into a low-power standby mode, and lowers the quiescent current from 9.5 mA to 500 µA.

The wide, 32‑V supply range, 6000‑V/µs slew-rate, and 310‑mA output current drive make the THS309x an excellent choice for high-voltage arbitrary-waveform-driver applications. Moreover, with the ability to handle large voltage swings driving into low-resistance and high-capacitance loads while maintaining good settling time performance, these devices are an excellent choice for pin-driver and power-FET driver applications.

The THS309x are offered in an 8‑pin SOIC (DDA) PowerPAD™ integrated circuit package. The THS3091 is also offered in an 8‑pin HVSSOP (DGN) package.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet THS309x High-Voltage, Low-Distortion, Current-Feedback Operational Amplifiers datasheet (Rev. K) PDF | HTML Apr 17, 2023
Technical article 3 common questions when designing with high-speed amplifiers PDF | HTML Jul 17, 2020
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML Mar 28, 2017
Application note Design for a Wideband Differential Transimpedance DAC Output (Rev. A) Oct 17, 2016
Application note Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) May 8, 2015
Application note Load Sharing Concepts: Implementation for Large-Signal Applications Oct 5, 2011
Application note Large-Signal Specifications for High-Voltage Line Drivers Jun 30, 2011
Application note Wireline Data Transmission and Reception Jan 27, 2010
Analog design Journal Designing for low distortion with high-speed op amps Mar 2, 2005
Application note Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance Apr 28, 2004
Application note Voltage Feedback vs. Current Feedback Op Amps Nov 30, 1998

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

THS3091EVM — THS3091 evaluation module for single, high-voltage low-distortion current-feedback op amp

The THS3091 evaluation module (EVM) provides a platform for evaluating the THS3091 high-voltage, low-distortion, high-speed, current-feedback amplifier. The user needs only power, input signal and test instrument to operate the EVM.

Applications

  • High-voltage arbitrary waveform
  • Power FET driver
  • (...)
Supported products & hardware
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Simulation model

THS3091 PSpice Model (Rev. B)

SLOJ173B.ZIP (108 KB) - PSpice model
Supported products & hardware
Simulation model

THS3091 TINA-TI Reference Design

SLOM419.TSC (2359 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

THS3091 TINA-TI Spice Model

SLOM418.ZIP (4 KB) - TINA-TI Spice model
Supported products & hardware
Reference design

TIDA-00023 — Reference Design for Implementation of the Load Sharing Concept for Large-Signal Applications

Using the THS3091 high voltage, low distortion current-feedback op amp, this reference design showcases the technique and the benefits of configuring multiple op-amps in a load sharing configuration when driving high voltage signals into heavy loads.  Supported by a full scale application (...)

Supported products & hardware
Reference design

TIDA-00075 — Wide-Bandwidth and High-Voltage Arbitrary Waveform Generator Front End

This design shows how to use an active interface with the current sink output of the DAC5682Z - typical applications for this include front ends for arbitrary waveform generators. The EVM includes the DAC5682Z for digital-to-analog conversion, an OPA695 to demonstrate an active interface (...)

Supported products & hardware
Reference design

TIDA-00684 — High-Bandwidth Arbitrary Waveform Generator Reference Design: DC or AC coupled, High-Voltage output

In TIDA-00684 reference design a quad-channel TSW3080 evaluation module (EVM) is developed to shows how to use an active amplifier interface with the DAC38J84 to demonstrate an arbitrary-waveform-generator frontend. The DAC38J84 provides four DAC channels with 16 bits of resolution with a maximum (...)
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
HVSSOP (DGN) 8 Ultra Librarian
HSOIC (DDA) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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