The OPA541 device is a power-operational amplifier capable of operation from power supplies up to ±40 V, and delivering continuous output currents up to 5 A. Internal current-limit circuitry can be user-programmed with a single external resistor, protecting the amplifier and load from fault conditions. The OPA541 devices fabricated are using a proprietary bipolar and FET process.
The OPA541 uses a single current-limit resistor to set both the positive and negative current limits. Applications currently using hybrid power amplifiers requiring two current-limit resistors do need not to be modified.
The OPA541 is available in an 11-pin power plastic package and an industry-standard 8-pin TO-3 hermetic package. The power plastic pachage has a copper-lead frame to maximize heat transfer. The TO-3 package is isolated from all circuitry, allowing it to be mounted directly to a heat sink without special insulators.
| Number of channels | 1 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 20 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 70 |
| Iout (typ) (A) | 10 |
| GBW (typ) (MHz) | 2 |
| Slew rate (typ) (V/µs) | 10 |
| Vos (offset voltage at 25°C) (max) (mV) | 1 |
| Offset drift (typ) (V/°C) | 0.000015 |
| Iq per channel (typ) (mA) | 20 |
| Features | Adj Current Limit |
| Rating | Catalog |
| Operating temperature range (°C) | -25 to 85 |
| Input bias current (max) (pA) | 50 |
| CMRR (typ) (dB) | 113 |
| Rail-to-rail | No |
| Architecture | FET |
| TO-220 (KV) | 11 | 187.5874 mm² 20.02 x 9.37 |
| TO-CAN (LMF) | 8 | 974.09 mm² 38.35 x 25.4 |
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