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.
Products containing the "OPA547" keyword are: OPA547 , OPA547EVM , OPA547F , OPA547F/500 , OPA547F/500 , OPA547F/500G3 , OPA547F/500G3 , OPA547F500 , OPA547F500G3 , OPA547FKTW , OPA547FKTWT , OPA547FKTWT , OPA547FKTWT-TI , OPA547FKTWTG3 , OPA547FKTWTG3 , OPA547FTWT , OPA547T , OPA547T , OPA547T-1 , OPA547T-1| Status | ACTIVE |
| Number of channels | 1 |
| Total Supply Voltage | 60 |
| Output current | 500 |
| GBW | 1 |
| Slew Rate | 6 |
| Vos (offset voltage @ 25 C) | 5 |
| Offset drift | 25 |
| Iq per channel | 10 |
| Features | Adj Current Limit^Shutdown |
| Rating | Catalog |
| Operating temperature range | -40 to 85 |
| Package Group | DDPAK/TO-263|7 |
| Approx. price | 5.75 | 1ku |
| Package size: mm2:W x L (PKG) | [pf]7DDPAK/TO-263[/pf]: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263|7) |
| Input bias current | 500000 |
| CMRR | 95 |
| Rail-to-rail | In to V- |
| Architecture | Bipolar |