High-Voltage, High-Current Op Amp with shutdown capability - OPA547

OPA547 (ACTIVE)

High-Voltage, High-Current Op Amp with shutdown capability

 

Recommended alternative parts

  • OPA548  -  Continuous output of 3A compared to 500 mA.
  • OPA549  -  Continuous output of 9A compared to 500mA.
  • OPA445  -  OPA445, OPA452, OPA453, OPA551, and OPA552 are high voltage op amps
  • OPA551  -  Continuous output of 200mA instead of 500mA. Lower noise.
  • OPA452  -  OPA445, OPA452, OPA453, OPA551, and OPA552 are high voltage op amps
  • OPA561  -  15V supply with 1.2A continuous output instead of 60V, 500mA.
  • OPA453  -  OPA445, OPA452, OPA453, OPA551, and OPA552 are high voltage op amps
  • OPA552  -  OPA445, OPA452, OPA453, OPA551, and OPA552 are high voltage op amps
  • OPA541  -  The OPA541 and the OPA561 are also high current op amps

Description

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.

Features

  • WIDE SUPPLY RANGE
      Single Supply: +8V to +60V
      Dual Supply: ±4V to ±30V
  • HIGH OUTPUT CURRENT:
      500mA Continuous
  • WIDE OUTPUT VOLTAGE SWING
  • FULLY PROTECTED:
      Thermal Shutdown
      Adjustable Current Limit
  • OUTPUT DISABLE CONTROL
  • THERMAL SHUTDOWN INDICATOR
  • HIGH SLEW RATE: 6V/µs
  • LOW QUIESCENT CURRENT
  • PACKAGES:
      7-Lead TO-220, Zip and Straight Leads
      7-Lead DDPAK Surface-Mount
  • APPLICATIONS
    • VALVE, ACTUATOR DRIVERS
    • SYNCHRO, SERVO DRIVERS
    • POWER SUPPLIES
    • TEST EQUIPMENT
    • TRANSDUCER EXCITATION
    • AUDIO AMPLIFIERS

View more

Parametrics Compare all products in Power Op Amps

 
Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
Output Current (Typ) (mA)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Vos (Offset Voltage @ 25C) (Max) (mV)
Offset Drift (Typ) (uV/C)
Iq per channel (Typ) (mA)
Additional Features
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Input Bias Current (Max) (pA)
CMRR (Typ) (dB)
Rail-to-Rail
Architecture
OPA547
1   
8   
60   
500   
1   
6   
5   
25   
10   
Adj Current Limit
Shutdown   
Catalog   
-40 to 85   
DDPAK/TO-263
TO-220   
See datasheet (TO-220)   
500000   
95   
In to V-   
Bipolar   

Featured tools and software

WEBENCH® Designer OPA547

Amplifier Topology
 Non-inverting
 Inverting
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 8.0 to 60.0 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 85.0 °C