High-voltage amplifier
Koheron HV100 is a ±100 V high-voltage amplifier with ultra-low output noise (< 50 µVrms in 10 Hz - 100 kHz bandwidth). It provides a fixed gain of 20 with 100 kHz small-signal bandwidth and a slew rate of 19 V/µs. Operating from a single 24 V supply, the HV100 can drive up to 100 mA and is stable with large capacitive loads.
| Quantity | Price |
|---|
Resources
Specifications
| HV100 | |
|---|---|
| Gain, Bandwidth | |
| Voltage gain | 20 V/V |
| Voltage gain drift | 15 ppm/°C |
| 3 dB small-signal bandwidth(Vout = 8 Vpp in 1 kΩ load, Low noise ON) |
100 kHz |
| Input | |
| Input impedance | 1 kΩ |
| Coupling | DC |
| Input voltage range | -5 V to 5 V |
| Output | |
| Output voltage range | -100 V to 100 V |
| Output impedance | 5 Ω |
| Continuous sourcing current(VOUT = +100 V, T = 25 °C) | 100 mA |
| Continuous sinking current(VOUT = +100 V, T = 25 °C) | -50 mA |
| Output voltage noise density(1 kHz, Low noise ON) | < 150 nV/√Hz |
| Output voltage noise density(1 kHz, Low noise OFF) | < 200 nV/√Hz |
| Output voltage noise(10 Hz - 100 kHz, Low noise ON) | < 50 µVrms |
| Slew rate(200 Vpp in 1 kΩ load) | 19 V/µs |
| Power supply | |
| Supply voltage | 19 V to 33 V, nom. 24 V |
| Quiescent current output enabled(24 V supply, Low noise ON) | 150 mA |
| Quiescent current output disabled(24 V supply, Low noise ON) | 25 mA |
| Supply current(24 V supply) | 1.5 A |
| Other | |
| Outside dimensions | 103 mm x 60 mm x 21 mm |
| Weight | 113 g |
| Operating temperature | -40 °C to 85 °C |
Frequency response
Large signal response
Output is shutdown when the amplifier junction temperature exceeds about 125 °C. The amplifier junction temperature depends on the baseplate temperature, the output current, and the output waveform.
As a reference, we plot for various loads the peak-to-peak output voltage for a sinewave undistorted and uninterrupted by thermal shutdown. The baseplate temperature is 25 °C.
Full-scale bandwidth versus capacitive load:
Output noise
Output voltage noise density measured for various output voltage loads:
When the low noise configuration switch is set to OFF, the quiescent current decreases from 135 mA to 50 mA in exchange for a lower bandwidth and a higher voltage noise density:
Gain versus temperature
Amplifier gain versus ambient temperature, measured driving 100 V in 1 kΩ load:
Waveform examples
