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OPA549

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High-Voltage, High-Current Op Amp, Excellent Output Swing

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High-Voltage, High-Current Op Amp, Excellent Output Swing

OPA549

ACTIVE
Data sheet Order now

Product details

Parameters

Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 8 Total supply voltage (Max) (+5V=5, +/-5V=10) 60 Output current (Typ) (mA) 8000 GBW (Typ) (MHz) 0.9 Slew rate (Typ) (V/us) 9 Vos (offset voltage @ 25 C) (Max) (mV) 5 Offset drift (Typ) (uV/C) 20 Iq per channel (Typ) (mA) 26 Features Adj Current Limit, Shutdown Rating Catalog Operating temperature range (C) -40 to 85 Input bias current (Max) (pA) 500000 CMRR (Typ) (dB) 95 Rail-to-rail In to V- Architecture Bipolar open-in-new Find other Power op amps

Package | Pins | Size

TO-220 (KV) 11 188 mm² 20.02 x 9.37 TO-OTHER (KVC) 11 90 mm² 20.02 x 4.5 open-in-new Find other Power op amps

Features

  • HIGH OUTPUT CURRENT:
       8A Continuous
       10A Peak
  • WIDE POWER-SUPPLY RANGE:
       Single Supply: +8V to +60V
       Dual Supply: ±4V to ±30V
  • WIDE OUTPUT VOLTAGE SWING
  • FULLY PROTECTED:
       Thermal Shutdown
       Adjustable Current Limit
  • OUTPUT DISABLE CONTROL
  • THERMAL SHUTDOWN INDICATOR
  • HIGH SLEW RATE: 9V/µs
  • CONTROL REFERENCE PIN
  • 11-LEAD POWER PACKAGE
  • APPLICATIONS
    • VALVE, ACTUATOR DRIVER
    • SYNCHRO, SERVO DRIVER
    • POWER SUPPLIES
    • TEST EQUIPMENT
    • TRANSDUCER EXCITATION
    • AUDIO POWER AMPLIFIER

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Description

The OPA549 is a low-cost, high-voltage/high-current operational amplifier ideal for driving a wide variety of loads. This laser-trimmed monolithic integrated circuit provides excellent low-level signal accuracy and high output voltage and current.

The OPA549 operates from either single or dual supplies for design flexibility. The input common-mode range extends below the negative supply.

The OPA549 is internally protected against over-temperature conditions and current overloads. In addition, the OPA549 provides an accurate, user-selected current limit. Unlike other designs which use a "power" resistor in series with the output current path, the OPA549 senses the load indirectly. This allows the current limit to be adjusted from 0A to 10A with a resistor/potentiometer, or controlled digitally with a voltage-out or current-out Digital-to-Analog Converter (DAC).

The Enable/Status (E/S) pin provides two functions. It can be monitored to determine if the device is in thermal shutdown, and it can be forced low to disable the output stage and effectively disconnect the load.

The OPA549 is available in an 11-lead power package. Its copper tab allows easy mounting to a heat sink for excellent thermal performance. Operation is specified over the extended industrial temperature range, –40°C to +85°C.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet High-Voltage, High-Current Operational Amplifier datasheet (Rev. E) Oct. 07, 2005
Technical articles Unique active mux capability combines buffer and switch into one solution Oct. 10, 2017
White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical articles Four ways to design an amplifier without a rail-to-rail op amp Jul. 21, 2016
Application notes MTTF, Failrate, Reliability, and Life Testing Oct. 04, 2000
Application notes DC MOTOR SPEED CONTROLLER: Control a DC Motor without Tachometer Feedback Sep. 27, 2000
Application notes Power Amplifier Stress and Power Handling Limitations Sep. 27, 2000

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

The Universal OPAMPEVM is a series of general purpose blank circuit boards that simplify prototyping circuits for a variety of IC package types. The evaluation module board design allows many different circuits to be constructed easily and quickly. Five models are offered with each targeted for (...)

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Design tools & simulation

SIMULATION MODELS Download
SBOC215B.TSC (92 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM089A.ZIP (56 KB) - PSpice Model
SIMULATION MODELS Download
SBOM288A.ZIP (5 KB) - TINA-TI Spice Model
SIMULATION TOOLS 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 TOOLS 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 TOOLS 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
  • (...)
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Reference designs

REFERENCE DESIGNS Download
SPI programmable 16-bit, 36V, 1A Power Supply with Integrated Current Shunt
TIPD138 — This Verified Design provides the theory, component selection, simulation, PCB design, and measurement details for a SPI controlled 36V power supply capable of sourcing 1A.  It also includes an intergrated high-side current shunt accurate to 1% across multiple decades of current load.  The (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
Power Package (KVC) 11 View options
TO-220 (KV) 11 View options

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