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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

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) 30 Iout (typ) (A) 0.25 GBW (typ) (MHz) 305 Slew rate (typ) (V/µs) 7300 Vos (offset voltage at 25°C) (max) (mV) 3 Offset drift (typ) (V/°C) 0.00001 Iq per channel (typ) (mA) 9.5 Rating Catalog Operating temperature range (°C) -40 to 85 Input bias current (max) (pA) 15000000 CMRR (typ) (dB) 69 Rail-to-rail No 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) 30 Iout (typ) (A) 0.25 GBW (typ) (MHz) 305 Slew rate (typ) (V/µs) 7300 Vos (offset voltage at 25°C) (max) (mV) 3 Offset drift (typ) (V/°C) 0.00001 Iq per channel (typ) (mA) 9.5 Rating Catalog Operating temperature range (°C) -40 to 85 Input bias current (max) (pA) 15000000 CMRR (typ) (dB) 69 Rail-to-rail No Architecture Current FB
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 HVSSOP (DGN) 8 14.7 mm² 3 x 4.9 SOIC (D) 8 29.4 mm² 4.9 x 6
  • Low distortion:
    • 84-dBc HD2 at 10 MHz, RL = 1 kΩ
    • 99-dBc HD3 at 10 MHz, RL = 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, VO = 20 VPP)
  • Wide bandwidth: 305 MHz (G = 2, RL = 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, RL = 1 kΩ
    • 99-dBc HD3 at 10 MHz, RL = 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, VO = 20 VPP)
  • Wide bandwidth: 305 MHz (G = 2, RL = 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 are high-voltage, low-distortion, high-speed, current-feedback amplifiers designed to operate over a wide supply range of ±5 V to ±16 V for applications requiring 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 in low power standby mode, and lowers the quiescent current from 9.5 mA to 500 µA.

The wide 32-V supply range, 6000V/µs of slew-rate and 310 mA of output current drive makes the THS309x ideally suited for high-voltage arbitrary waveform driver applications. Moreover, having the ability to handle large voltage swings driving into low-resistance and high-capacitance loads while maintaining good settling time performance makes the devices ideal for pin-driver and power-FET driver applications.

The THS3091 and THS3095 are offered in an 8-pin SOIC (DDA) package with PowerPAD™. The THS3091 is offered in an additional 8-pin HVSSOP (DGN) package.

The THS3091 and THS3095 are high-voltage, low-distortion, high-speed, current-feedback amplifiers designed to operate over a wide supply range of ±5 V to ±16 V for applications requiring 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 in low power standby mode, and lowers the quiescent current from 9.5 mA to 500 µA.

The wide 32-V supply range, 6000V/µs of slew-rate and 310 mA of output current drive makes the THS309x ideally suited for high-voltage arbitrary waveform driver applications. Moreover, having the ability to handle large voltage swings driving into low-resistance and high-capacitance loads while maintaining good settling time performance makes the devices ideal for pin-driver and power-FET driver applications.

The THS3091 and THS3095 are offered in an 8-pin SOIC (DDA) package with PowerPAD™. The THS3091 is offered in an additional 8-pin HVSSOP (DGN) package.
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Technical documentation

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Type Title Date
* Data sheet THS309x High-Voltage, Low-Distortion, Current-Feedback Operational Amplifiers datasheet (Rev. J) PDF | HTML 17 Feb 2023
Technical article 3 common questions when designing with high-speed amplifiers 17 Jul 2020
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
More literature Design for a Wideband Differential Transimpedance DAC Output (Rev. A) 17 Oct 2016
EVM User's guide TSW3070EVM: Amplifier Interface to Current Sink DAC - (Rev. A) 23 May 2016
More literature Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) 08 May 2015
More literature Load Sharing Concepts: Implementation for Large-Signal Applications 05 Oct 2011
More literature Large-Signal Specifications for High-Voltage Line Drivers 30 Jun 2011
More literature Wireline Data Transmission and Reception 27 Jan 2010
More literature Design for a Wideband Differential Transimpedance DAC Output 18 Apr 2008
Analog Design Journal Designing for low distortion with high-speed op amps 02 Mar 2005
More literature Noise Analysis for High Speed Op Amps (Rev. A) 17 Jan 2005
More literature Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance 28 Apr 2004
More literature Voltage Feedback vs. Current Feedback Op Amps 30 Nov 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

The THS3091 evaluation module (EVM) User's Guide is included within the Datasheet.

The THS3091EVM 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.

(...)

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Simulation model

THS3091 PSpice Model (Rev. B)

SLOJ173B.ZIP (108 KB) - PSpice Model
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Simulation model

THS3091 TINA-TI Reference Design

SLOM419.TSC (2359 KB) - TINA-TI Reference Design
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Simulation model

THS3091 TINA-TI Spice Model

SLOM418.ZIP (4 KB) - TINA-TI Spice Model
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Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
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Calculation tool

VOLT-DIVIDER-CALC — Voltage Divider Determines A Set of Resistors for a Voltage Divider

VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.

(...)

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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
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Reference designs

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 (...)
Design guide: PDF
Schematic: PDF
Reference designs

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 (...)
Design guide: PDF
Schematic: PDF
Reference designs

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 (...)
Test report: PDF
Schematic: PDF
Package Pins Download
HSOIC (DDA) 8 View options
HVSSOP (DGN) 8 View options
SOIC (D) 8 View options

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