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.
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 @ 25 C) (Max) (mV) |
Offset drift (Typ) (uV/C) |
Iq per channel (Typ) (mA) |
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 | OPA548 | OPA549 |
---|---|---|
1 | 1 | 1 |
8 | 8 | 8 |
60 | 60 | 60 |
500 | 3000 | 8000 |
1 | 1 | 0.9 |
6 | 10 | 9 |
5 | 10 | 5 |
25 | 30 | 20 |
10 | 17 | 26 |
Adj Current Limit Shutdown |
Adj Current Limit Shutdown |
Adj Current Limit Shutdown |
Catalog | Catalog | Catalog |
-40 to 85 | -40 to 85 | -40 to 85 |
DDPAK/TO-263 | 7
TO-220 | 7 |
DDPAK/TO-263 | 7
TO-220 | 7 |
Power Package | 11
TO-220 | 11 |
7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
See datasheet (TO-220) |
7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
See datasheet (TO-220) |
11Power Package: 90 mm2: 4.5 x 20.02 (Power Package | 11)
See datasheet (TO-220) |
500000 | 500000 | 500000 |
95 | 95 | 95 |
In to V- | In to V- | In to V- |
Bipolar | Bipolar | Bipolar |
Order now | Order now | Order now |