OPA547

TO-220 (KC)

7

47 mm² 10.16 x 4.58

TO-220 (KVT)

7

84 mm² 10.16 x 8.26

TO-263 (KTW)

7

154 mm² 10.1 x 15.24

WIDE SUPPLY RANGE
HIGH OUTPUT CURRENT:
WIDE OUTPUT VOLTAGE SWING
FULLY PROTECTED:
OUTPUT DISABLE CONTROL
THERMAL SHUTDOWN INDICATOR
HIGH SLEW RATE: 6V/µs
LOW QUIESCENT CURRENT
PACKAGES:
APPLICATIONS
- VALVE, ACTUATOR DRIVERS
- SYNCHRO, SERVO DRIVERS
- POWER SUPPLIES
- TEST EQUIPMENT
- TRANSDUCER EXCITATION
- AUDIO AMPLIFIERS

WIDE SUPPLY RANGE
HIGH OUTPUT CURRENT:
WIDE OUTPUT VOLTAGE SWING
FULLY PROTECTED:
OUTPUT DISABLE CONTROL
THERMAL SHUTDOWN INDICATOR
HIGH SLEW RATE: 6V/µs
LOW QUIESCENT CURRENT
PACKAGES:
APPLICATIONS
- VALVE, ACTUATOR DRIVERS
- SYNCHRO, SERVO DRIVERS
- POWER SUPPLIES
- TEST EQUIPMENT
- TRANSDUCER EXCITATION
- AUDIO AMPLIFIERS

The OPA547 is a low-cost, high-voltage/high-current operational amplifier ideal for driving a wide variety of loads. A laser-trimmed monolithic integrated circuit provides excellent low-level signal accuracy and high output voltage and current.

The OPA547 operates from either single or dual supplies for design flexibility. In single-supply operation, the input common-mode range extends below ground.

The OPA547 is internally protected against over-temperature conditions and current overloads. In addition, the OPA547 was designed to provide an accurate, user-selected current limit. Unlike other designs which use a "power" resistor in series with the output current path, the OPA547 senses the load indirectly. This allows the current limit to be adjusted from 0mA to 750mA with a 0 to 150 µA control signal. This is easily done with a resistor/potentiometer or controlled digitally with a voltage-out or current-out DAC.

The Enable/Status (E/S) pin provides two functions. An input on the pin not only disables the output stage to effectively disconnect the load, but also reduces the quiescent current to conserve power. The E/S pin output can be monitored to determine if the OPA547 is in thermal shutdown.

The OPA547 is available in an industry-standard 7-lead staggered and straight lead TO-220 package, and a 7-lead DDPAK surface-mount plastic power package. The copper tab allows easy mounting to a heat sink or circuit board for excellent thermal performance. It is specified for operation over the extended industrial temperature range, –40°C to +85°C.

The OPA547 is a low-cost, high-voltage/high-current operational amplifier ideal for driving a wide variety of loads. A laser-trimmed monolithic integrated circuit provides excellent low-level signal accuracy and high output voltage and current.

The OPA547 operates from either single or dual supplies for design flexibility. In single-supply operation, the input common-mode range extends below ground.

The OPA547 is internally protected against over-temperature conditions and current overloads. In addition, the OPA547 was designed to provide an accurate, user-selected current limit. Unlike other designs which use a "power" resistor in series with the output current path, the OPA547 senses the load indirectly. This allows the current limit to be adjusted from 0mA to 750mA with a 0 to 150 µA control signal. This is easily done with a resistor/potentiometer or controlled digitally with a voltage-out or current-out DAC.

The Enable/Status (E/S) pin provides two functions. An input on the pin not only disables the output stage to effectively disconnect the load, but also reduces the quiescent current to conserve power. The E/S pin output can be monitored to determine if the OPA547 is in thermal shutdown.

The OPA547 is available in an industry-standard 7-lead staggered and straight lead TO-220 package, and a 7-lead DDPAK surface-mount plastic power package. The copper tab allows easy mounting to a heat sink or circuit board for excellent thermal performance. It is specified for operation over the extended industrial temperature range, –40°C to +85°C.

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Technical documentation

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	Type	Title	Date
*	Data sheet	High-Voltage, High-Current Operational Amplifier datasheet (Rev. F)	21 Jul 2005
	E-book	The Signal e-book: A compendium of blog posts on op amp design topics	28 Mar 2017
	User guide	OPA547EVM, OPA548EVM User's Guide	10 Nov 2015
	Application note	MTTF, Failrate, Reliability, and Life Testing	04 Oct 2000
	Application note	DC MOTOR SPEED CONTROLLER: Control a DC Motor without Tachometer Feedback	27 Sep 2000
	Application note	Power Amplifier Stress and Power Handling Limitations	27 Sep 2000

Design & development

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Evaluation board

OPA547EVM — OPA547 Evaluation Module

The OPA547EVM is a platform for evaluating the OPA547 in a variety of circuit configurations. Circuit configuations include inverting/non-inverting gain, single/dual power supply, internal/external load and external reference. Access is provided to the Enable/Shutdown pin and LED's provide visual (...)

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User guide

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Simulation model

OPA547 TINA-TI Reference Design (Rev. C)

SBOC113C.TSC (101 KB) - TINA-TI Reference Design

Simulation model

OPA547 PSpice Model (Rev. A)

SBOM087A.ZIP (55 KB) - PSpice Model

Simulation model

OPA547 TINA-TI Spice Model (Rev. A)

SBOM190A.ZIP (4 KB) - TINA-TI Spice Model

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 (...)

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User guide

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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 op-amp gain with feedback (...)