Frequently Asked Questions: Amplifiers >> High Speed Amplifiers >> HSA Selection Guide >> Power Amplifier Selection Guide
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Power Amps
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Introduction:
- In current feedback amplifier architectures, gain and bandwidth are independent, so increasing the gain doesn't reduce the bandwidth. The high slew rate and high current output supports wide full power bandwidth with better high-frequency distortion performance compared to voltage feedback amplifiers.
Applications:
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Arbitrary Waveform Generator |
Semiconductor Test & ATE |
Semiconductor Manufacturing | LCR Meter & Impedance Analyzer | |||
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Medical Ultrasound |
In-vitro diagnostics |
MRI |
Electrosurgery |
- A list of TI publications related to high speed amplifiers and their applications can be found here: Application Notes
Recommended High Speed Power Amplifier Device Table:
| Devices | Supply Voltage (V) | BW (MHz) | Iq (mA) | Slew Rate (V/us) | Iout (mA) |
| OPA2675 | 4.5 to 13 | 730 | 16.5 | 3000 | 1000 |
| THS3491 | 14 to 32 | 900 | 17.1 | 8000 | 420 |
| THS3091 | 10 to 32 | 715 | 9.5 | 6000 | 310 |
| THS3001 | 9 to 33 | 420 | 6.6 | 6500 | 120 |
| OPA695/OPA2695 | 5 to 12 | 1700 | 12.9 | 4300 | 120 |
Recommended Integrated Differential-to-Single-Ended DAC Output Amplifier Device Table:
| Devices | Supply Voltage (V) | BW (MHz) | Iq (mA) | Slew Rate (V/us) | Iout (mA) |
| THS3217 | 8 to 15.8 | 800 | 55 | 5000 | 120 |
| THS3215 | 8 to 15.8 | 650 | 34.5 | 3000 | 95 |
Recommended Automotive Qualified Device Table:
| Devices | Supply Voltage (V) | BW (MHz) | Iq (mA) | Slew Rate (V/us) | Iout (mA) |
| LMH6722-Q1 | 8 to 12 | 400 | 5.6 | 1800 | 70 |