PA Series Power Amplifiers
Description
The PA series power amplifiers are high voltage, wideband, linear amplifiers specifically designed to drive high capacitance piezo actuators. The PA amplifiers are available in different voltage and current ranges:
| Model | Max. Output Voltage | Max. Output Current | Type |
| PA-180-2-V | ±90 V (180 Vpp) | 2 A | Voltage Amplifier |
| PA-180-2-Q | ±90 V (180 Vpp) | 2 A | Charge Drive |
| PA-180-2-I | ±90 V (180 Vpp) | 2 A | Current Source |
| PA-180-8-V | ±90 V (180 Vpp) | 8 A | Voltage Amplifier |
| PA-300-4-V | ±150 V (300 Vpp) | 4 A | Voltage Amplifier |
- Voltage Amplifiers are general purpose linear amplifiers for high voltage instrumentation and laboratory use, piezo actuator drive, etc.
- Current Source Amplifier is specially designed for magnetic field excitation in eddy current inspection coils.
- Charge Drive Amplifier is specially designed to pump charge into piezo actuators to reduce hysteresis and linearize the movement of piezo actuator.
Voltage and current monitor outputs are provided to allow real-time monitoring of the load voltage and current. The scaled and buffered outputs can be used in applications such as power monitoring and impedance analyzer.
Applications
- Piezo Transducer Drive
- Magnetic Field Excitation
- High Voltage Impedance Analyzer
- High Voltage Instrumentation
- Vibration and Modal Analysis
Specifications
| Model | PA-180-2-V | PA-180-2-I | PA-180-2-Q | PA-180-8-V | PA-300-4-V |
| Output Voltage | ±90 V | ±90 V | ±90 V | ±90 V | ±150 V |
| Output Current | 2 A | 2 A | 2 A | 8 A | 4 A |
| Gain | 10 V/V | 0.2 A/V | Customized | 10 V/V | 15 V/V |
| Slew Rate (RL = 100 Ω) | 60 V/µS | 60 V/µS | 60 V/µS | 30 V/µS | 25 V/µS |
| Power Bandwidth @Max. Output Voltage | 100 kHz | 100 kHz | 100 kHz | 50 kHz | 25 kHz |
| Voltage Monitor Ratio | 1/10 | 1/10 | 1/10 | 1/10 | 1/20 |
| Current Monitor Ratio | 5 V/A | 5 V/A | 5 V/A | 1.25 V/A | 2.5 V/A |
| Input Voltage Range | ±10 V | ||||
| Input Impedance | 10 kΩ | ||||
| Supply Voltage | 100 to 240 V, 50 to 60 Hz | ||||
| Connectors | BNC | ||||
| Casing | Rack mount 3U / 4U | ||||
* Max. Slew Rate (SRMax) for capacitive loads is limited by SRMax < IMax / CL. For example, given a capacitive load CL = 100nF, and IMax = 2 A (Model PA-180-2-V), then SRMax < 20 V/µS.
* Power Bandwidth (BWP), Slew Rate and peak-to-peak sine wave output (Vpp) are related by SR = πBWPVpp. For example, given SR = 60 V/µS and Vpp = 180V, the Power Bandwidth is 106 kHz.