| Number of channels (#) | 1 |
| Total supply voltage (Min) (+5V=5, +/-5V=10) | 8 |
| Total supply voltage (Max) (+5V=5, +/-5V=10) | 60 |
| Output current (Typ) (mA) | 500 |
| GBW (Typ) (MHz) | 1 |
| Slew rate (Typ) (V/us) | 6 |
| Vos (offset voltage @ 25 C) (Max) (mV) | 5 |
| Offset drift (Typ) (uV/C) | 25 |
| Iq per channel (Typ) (mA) | 10 |
| Features | Adj Current Limit, Shutdown |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 85 |
| Input bias current (Max) (pA) | 500000 |
| CMRR (Typ) (dB) | 95 |
| Rail-to-rail | In to V- |
| Architecture | Bipolar |
- 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
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.
