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THS3091

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Single- High-Voltage, Low Distortion, Current-Feedback Operational Amplifier

Data sheet
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Single- High-Voltage, Low Distortion, Current-Feedback Operational Amplifier

THS3091

ACTIVE
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Product details

Parameters

Architecture Current FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 10 Total supply voltage (Max) (+5V=5, +/-5V=10) 30 GBW (Typ) (MHz) 235 BW @ Acl (MHz) 235 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 7300 Vn at flatband (Typ) (nV/rtHz) 2 Vn at 1 kHz (Typ) (nV/rtHz) 2 Iq per channel (Typ) (mA) 9.5 Vos (offset voltage @ 25 C) (Max) (mV) 3 Rail-to-rail No Rating Catalog Operating temperature range (C) -40 to 85 CMRR (Typ) (dB) 69 Input bias current (Max) (pA) 15000000 Offset drift (Typ) (uV/C) 10 Output current (Typ) (mA) 250 2nd harmonic (dBc) 66 3rd harmonic (dBc) 74 @ MHz 10 open-in-new Find other High-speed op amps (GBW>=50MHz)

Package | Pins | Size

HSOIC (DDA) 8 19 mm² 3.90 x 4.90 SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other High-speed op amps (GBW>=50MHz)

Features

  • Low Distortion
    • 77-dBc HD2 at 10 MHz, RL = 1 kΩ
    • 69-dBc HD3 at 10 MHz, RL = 1 kΩ
  • Low Noise
    • 14-pA/√Hz Noninverting Current Noise
    • 17-pA/√Hz Inverting Current Noise
    • 2-nV/√Hz Voltage Noise
  • High Slew Rate: 7300 V/µs (G = 5, VO = 20 VPP)
  • Wide Bandwidth: 210 MHz (G = 2, RL = 100 Ω)
  • High Output Current Drive: ±250 mA
  • Wide Supply Range: ±5 V to ±15 V
  • Power-Down Feature: THS3095 Only
 open-in-new Find other High-speed op amps (GBW>=50MHz)

Description

The THS3091 and THS3095 are high-voltage, low-distortion, high-speed, current-feedback amplifier designed to operate over a wide supply range of ±5 V to ±15 V for applications requiring large, linear output signals such as Pin, Power FET, and VDSL line drivers.

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 supply range combined with total harmonic distortion as low as –69 dBc at 10 MHz, in addition, to the high slew rate of 7300 V/µs makes the THS309x ideally suited for high-voltage arbitrary waveform driver applications. Moreover, having the ability to handle large voltage swings driving into high-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 (D), and the 8-pin SOIC (DDA) packages with PowerPAD™.

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THS3491 ACTIVE 900-MHz, High Power Output, Current Feedback Amplifier This device is a current feedback amplifier with higher bandwidth (900MHz) and higher output current drive (420mA)

Technical documentation

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Type Title Date
* Datasheet THS309x High-voltage, Low-distortion, Current-feedback Operational Amplifiers datasheet (Rev. H) Dec. 31, 2015
Technical article 3 common questions when designing with high-speed amplifiers Jul. 17, 2020
Technical article How to reduce distortion in high-voltage, high-frequency signal generation for AWGs Oct. 30, 2018
Technical article What are the advantages of using JFET-input amplifiers in high-speed applications? Jun. 19, 2018
Technical article Unique active mux capability combines buffer and switch into one solution Oct. 10, 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Application note Design for a Wideband Differential Transimpedance DAC Output (Rev. A) Oct. 17, 2016
User guide TSW3070EVM: Amplifier Interface to Current Sink DAC - (Rev. A) May 23, 2016
Application note Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) May 08, 2015
Application note Load Sharing Concepts: Implementation for Large-Signal Applications Oct. 05, 2011
Application note Large-Signal Specifications for High-Voltage Line Drivers Jun. 30, 2011
Application note Wireline Data Transmission and Reception Jan. 27, 2010
Application note Design for a Wideband Differential Transimpedance DAC Output Apr. 18, 2008
Application note Designing for low distortion with high-speed op amps Mar. 02, 2005
Application note Noise Analysis for High Speed Op Amps (Rev. A) Jan. 17, 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.

Hardware development

EVALUATION BOARD Download
49
Description

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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Features
  • Unity gain stable
  • Adjustable for inverting and non-inverting gain configurations
  • SMA connectors on input and output ports
  • 50 ohm input and output impedance matching
  • Supply voltage range:
    • Single supply +10V to +30V
    • Split supply +/-5.0 to +/-15.0V
  • Power supply via banana jack connectors
  • Ferrite beads on the (...)
View details

Design tools & simulation

SIMULATION MODEL Download
SLOJ173A.ZIP (1 KB) - PSpice Model
SIMULATION MODEL Download
SLOM418.ZIP (4 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLOM419.TSC (2359 KB) - TINA-TI Reference Design
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
View details
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI — 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 (...)
document-generic User guide
CALCULATION TOOL Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — 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 op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)
View details
CALCULATION TOOL Download
Voltage Divider Determines A Set of Resistors for a Voltage Divider
VOLT-DIVIDER-CALC — 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.

(...)

Reference designs

REFERENCE DESIGNS Download
High-Bandwidth Arbitrary Waveform Generator Reference Design: DC or AC coupled, High-Voltage output
TIDA-00684 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Wide-Bandwidth and High-Voltage Arbitrary Waveform Generator Front End
TIDA-00075 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Reference Design for Implementation of the Load Sharing Concept for Large-Signal Applications
TIDA-00023 — 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 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SO PowerPAD (DDA) 8 View options
SOIC (D) 8 View options

Ordering & quality

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring

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