High-Voltage, High-Current, Wide-Output-Voltage-Swing Power Operational Amplfier - OPA548

OPA548 (ACTIVE)

High-Voltage, High-Current, Wide-Output-Voltage-Swing Power Operational Amplfier

 

Recommended alternative parts

  • OPA549  -  Continuous output of 9A instead of 3A.
  • OPA547  -  Continuous output of 500mA instead of 3A.
  • OPA541  -  OPA541 and OPA561 are high current op amps
  • OPA567  -  5V supply with 2A continuous output instead of 60V, 3A.
  • OPA561  -  15V supply with 1.2A continuous output instead of 60V, 3A.
  • OPA445  -  OPA445, OPA452, OPA453, OPA551, and OPA552 are also high voltage op amps
  • OPA452  -  OPA445, OPA452, OPA453, OPA551, and OPA552 are high voltage op amps
  • OPA453  -  OPA445, OPA452, OPA453, OPA551, and OPA552 are high voltage op amps
  • OPA551  -  OPA445, OPA452, OPA453, OPA551, and OPA552 are high voltage op amps
  • OPA552  -  OPA445, OPA452, OPA453, OPA551, and OPA552 are high voltage op amps

Description

The OPA548 device is a low-cost, high-voltage and high-current operational amplifier that’s 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 OPA548 device operates from either single or dual supplies for design flexibility. In single-supply operation, the input common-mode range extends below ground.

The OPA548 device is internally protected against over-temperature conditions and current overloads. In addition, the OPA548 device was designed to provide an accurate, user-selected current limit. Unlike other designs, which use a resistor in series with the output current path, the OPA548 device senses the load indirectly. This allows the current limit to be adjusted from 0 A to 5 A with a resistor and 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 OPA548 is in thermal shutdown.

The OPA548 device 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. The device is specified for operation over the extended industrial temperature range, –40°C to 85°C. A SPICE macromodel is available for design analysis.

Features

  • Wide Supply Range
    • Single Supply: 8 V to 60 V
    • Dual Supply: ±4 V to ±30 V
  • High-Output Current:
    • 3-A Continuous
    • 5-A Peak
  • Wide Output Voltage Swing
  • Fully Protected:
    • Thermal Shutdown
    • Adjustable Current Limit
  • Output Disable Control
  • Thermal Shutdown Indicator
  • High Slew Rate: 10 V
  • Low Quiescent Current
  • Packages:
    • 7-Lead TO-220, Zip and Straight Leads
    • 7-Lead DDPAK Surface-Mount

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
OPA548
1   
8   
60   
3000   
1   
10   
10   
30   
17   
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 OPA548

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