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OPA567

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Rail-to-Rail I/O, 2A Power Amplifier

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Data sheet

OPA567

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Iout (typ) (A) 2.2 GBW (typ) (MHz) 1.2 Slew rate (typ) (V/µs) 1.2 Vos (offset voltage at 25°C) (max) (mV) 2 Offset drift (typ) (V/°C) 0.0000013 Iq per channel (typ) (mA) 3.4 Features Adj Current Limit, Shutdown Rating Catalog Operating temperature range (°C) -55 to 125 Input bias current (max) (pA) 10 CMRR (typ) (dB) 80 Rail-to-rail In, Out Architecture FET
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Iout (typ) (A) 2.2 GBW (typ) (MHz) 1.2 Slew rate (typ) (V/µs) 1.2 Vos (offset voltage at 25°C) (max) (mV) 2 Offset drift (typ) (V/°C) 0.0000013 Iq per channel (typ) (mA) 3.4 Features Adj Current Limit, Shutdown Rating Catalog Operating temperature range (°C) -55 to 125 Input bias current (max) (pA) 10 CMRR (typ) (dB) 80 Rail-to-rail In, Out Architecture FET
VQFN (RHG) 12 25 mm² 5 x 5
  • 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
  • APPLICATIONS
    • THERMOELECTRIC COOLER DRIVER
    • LASER DIODE PUMP DRIVER
    • VALVE, ACTUATOR DRIVER
    • SYNCHRO, SERVO DRIVER
    • TRANSDUCER EXCITATION
    • GENERAL LINEAR POWER BOOSTER FOR OP AMPS

PowerPAD is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.
  • 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
  • APPLICATIONS
    • THERMOELECTRIC COOLER DRIVER
    • LASER DIODE PUMP DRIVER
    • VALVE, ACTUATOR DRIVER
    • SYNCHRO, SERVO DRIVER
    • TRANSDUCER EXCITATION
    • GENERAL LINEAR POWER BOOSTER FOR OP AMPS

PowerPAD is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.

The OPA567 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. Output swing is within 300mV of the supply rails, with output current of 2A. Smaller loads allow an output swing closer to the rails.

The OPA567 is unity gain stable, 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 OPA567 provides an accurate user-selected current limit set with an external resistor, or digitally adjusted via a Digital-to-Analog Converter (DAC).

The output of the OPA567 can be independently disabled using the Enable pin, saving power and protecting the load.

Two flags are provided. The current limit flag, IFLAG, warns of current limit conditions. TFLAG is a thermal flag that warns of thermal overstress. The TFLAG pin can be connected to the Enable pin to provide a thermal shutdown solution.

The OPA567 is available in a tiny 5mm x 5mm Quad Flatpack No-lead (QFN) package and features an exposed thermal pad that enhances thermal and electrical characteristics. It is small and easy to heat sink. The OPA567 is specified for operation over the industrial temperature range, -40°C to +85°C.

The OPA567 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. Output swing is within 300mV of the supply rails, with output current of 2A. Smaller loads allow an output swing closer to the rails.

The OPA567 is unity gain stable, 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 OPA567 provides an accurate user-selected current limit set with an external resistor, or digitally adjusted via a Digital-to-Analog Converter (DAC).

The output of the OPA567 can be independently disabled using the Enable pin, saving power and protecting the load.

Two flags are provided. The current limit flag, IFLAG, warns of current limit conditions. TFLAG is a thermal flag that warns of thermal overstress. The TFLAG pin can be connected to the Enable pin to provide a thermal shutdown solution.

The OPA567 is available in a tiny 5mm x 5mm Quad Flatpack No-lead (QFN) package and features an exposed thermal pad that enhances thermal and electrical characteristics. It is small and easy to heat sink. The OPA567 is specified for operation over the industrial temperature range, -40°C to +85°C.
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Technical documentation

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Type Title Date
* Data sheet Rail-to-Rail I/O, 2A Power Amplifier datasheet (Rev. A) 20 Sep 2005
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Application note Power Amplifier Stress and Power Handling Limitations 27 Sep 2000

Design & development

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

Simulation model

OPA567 PSpice Model (Rev. B)

SBOM433B.ZIP (29 KB) - PSpice Model
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Simulation model

OPA567 TINA-TI Reference Design (Rev. B)

SBOC101B.TSC (116 KB) - TINA-TI Reference Design
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Simulation model

OPA567 TINA-TI Spice Model (Rev. A)

SBOM183A.ZIP (9 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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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-00554 — DLP Ultra-mobile NIR Spectrometer for Portable Chemical Analysis with Bluetooth Connectivity

The ultra-mobile 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 architectures using an expensive InGaAs (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
VQFN (RHG) 12 View options
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