The OPA445 is a monolithic operational amplifier capable of operation from power supplies up to ±45V and output currents of 15mA. It is useful in a wide variety of applications requiring high output voltage or large common-mode voltage swings.
The OPA445's high slew rate provides wide powerbandwidth response, which is often required for high-voltage applications. FET input circuitry allows the use of high-impedance feedback networks, thus minimizing their output loading effects. Laser trimming of the input circuitry yields low input offset voltage and drift.
The OPA445 is available in standard pinout TO-99, DIP-8, and SO-8 surface-mount packages as well as an SO-8 PowerPAD package for reducing junction temperature. It is fully specified from -25°C to +85°C and operates from -55°C to +125°C. A SPICE macromodel is available for design analysis (from www.ti.com).
PowerPAD is a trademark of Texas Instruments, Inc. All other trademarks are the property of their respective owners.
| 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) | 90 |
| Iout (typ) (A) | 0.026 |
| GBW (typ) (MHz) | 2 |
| Slew rate (typ) (V/µs) | 15 |
| Vos (offset voltage at 25°C) (max) (mV) | 3 |
| Offset drift (typ) (V/°C) | 0.00001 |
| Iq per channel (typ) (mA) | 4.2 |
| Rating | Catalog |
| Operating temperature range (°C) | -55 to 125 |
| Input bias current (max) (pA) | 50 |
| CMRR (typ) (dB) | 95 |
| Rail-to-rail | No |
| Architecture | FET |
| HSOIC (DDA) | 8 | 29.4 mm² 4.9 x 6 |
| PDIP (P) | 8 | 92.5083 mm² 9.81 x 9.43 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
| TO-CAN (LMC) | 8 | 80.2816 mm² 8.96 x 8.96 |
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