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OPA569

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Power Op Amp, Output Signal Swings Within 200mV of Rails at 2A Output Current

Data sheet
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Power Op Amp, Output Signal Swings Within 200mV of Rails at 2A Output Current

OPA569

ACTIVE
Data sheet Order now

Product details

Parameters

Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Output current (Typ) (mA) 2400 GBW (Typ) (MHz) 1.2 Slew rate (Typ) (V/us) 1.2 Vos (offset voltage @ 25 C) (Max) (mV) 2 Offset drift (Typ) (uV/C) 1.3 Iq per channel (Typ) (mA) 9 Features Adj Current Limit, Shutdown Rating Catalog Operating temperature range (C) -55 to 125 Input bias current (Max) (pA) 10 CMRR (Typ) (dB) 90 Rail-to-rail In to V-, Out Architecture FET open-in-new Find other Power op amps

Package | Pins | Size

HSOIC (DWP) 20 133 mm² 12.825 x 10.405000000000001 open-in-new Find other Power op amps

Features

  • HIGH OUTPUT CURRENT: 2A
  • OUTPUT SWINGS TO: 150mV of Rails with IO =2A
  • THERMAL PROTECTION
  • ADJUSTABLE CURRENT LIMIT
  • TWO FLAGS: Current Limit and Temperature Warning
  • LOW SUPPLY VOLTAGE OPERATION: 2.7V to 5.5V
  • SHUTDOWN FUNCTION WITH OUTPUT DISABLE
  • SMALL POWER PACKAGE: SO-20 PowerPAD™
  • APPLICATIONS
    • THERMOELECTRIC COOLER DRIVER
    • LASER DIODE PUMP DRIVER
    • VALVE, ACTUATOR DRIVER
    • SYNCHRO, SERVO DRIVER
    • TRANSDUCER EXCITATION
    • GENERAL LINEAR POWER BOOSTER FOR OP AMPS
    • PARALLELING OPTION FOR HIGHER CURRENT APPLICATIONS

PowerPAD is a trademark of Texas Instruments.

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Description

The OPA569 is a low-cost, high-current, operational amplifier designed for driving a wide variety of loads while operating on low-voltage supplies. It operates from either single or dual supplies for design flexibility and has rail-to-rail swing on the input and output. Typical output swing is within 150mV of the supply rails, with output current of 2A. Output swing closer to the rails is achievable with lighter loads.

The OPA569 is unity gain stable, has low dc errors, is easy to use, and free from the phase inversion problems found in some power amplifiers. High performance is maintained at voltage swings near the output rails.

The OPA569 provides an accurate user-selected current limit that is set with an external resistor, or digitally adjusted via a Digital-to-Analog Converter.

The OPA569 output can be independently disabled using the Enable pin, saving power and protecting the load.

The IMONITOR pin provides a 1:475 bidirectional copy of the output current. This eliminates the need for a series current shunt resistor, allowing more voltage to be applied to the load. This pin can be used for simple monitoring, or feedback control to establish constant output current.

Two flags are provided: one for warning of thermal over-stress, and one for current limit condition. The Thermal Flag pin can be connected to the Enable pin to provide a thermal shutdown solution.

Packaged in the Texas Instruments PowerPAD™ package, it is small and easy to heat sink. The OPA569 is specified for operation 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
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Type Title Date
* Datasheet OPA569: Rail-To-Rail I/O, 2A Power Amplifier datasheet (Rev. A) Oct. 22, 2003
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical articles Why correct voltage matters for op-amp PowerPads™ Nov. 06, 2014
Application note Power Amplifier Stress and Power Handling Limitations Sep. 27, 2000

Design & development

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Hardware development

EVALUATION BOARD Download
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 MODEL Download
SBOC003B.ZIP (105 KB) - PSpice Model
SIMULATION MODEL Download
SBOM355A.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOM356A.TSC (125 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOM357A.TSC (103 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
  • (...)
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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 (...)
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
  • (...)
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Reference designs

REFERENCE DESIGNS Download
DLP Near-Infrared Spectrometer for Optical Analysis of Liquids & Solids Reference Design
TIDA-00155 — This near-infrared (NIR) spectrometer reference design utilizes Texas Instruments' DLP technology in conjunction with a single-element InGaAs detector to deliver high performance measurements in a portable form factor that is more affordable than expensive InGaAs array detector or fragile rotating (...)
document-generic Schematic
REFERENCE DESIGNS Download
Bridge Tied Load (BTL) V-I Converter, 0.5-4.5V to +/-2A
TIPD103 — This Verified Design circuit is a bidirectional current source that can be used to drive floating loads, specifically thermo-electric coolers (TECs) from a single-ended source. The circuit makes use of an internal output current monitor circuit (IMON), which is a special feature of the OPA569 power (...)
document-generic Schematic

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Package Pins Download
SO PowerPAD (DWP) 20 View options

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