SPECS Nanonis HVA4 High Voltage Amplifier
The HVA4 family is a set of high voltage amplifiers designed for nano-positioning applications using piezo elements. Three different models with maximum output voltages of ±140 V, ±220 V or ±400 V let the user choose an optimal setup for the required application. The unit has six channels featuring four inputs (X, Y, Z and AUX) divided into three groups (X&Y, Z, AUX). Each group has its individual gain selector with 4 settings. Z and AUX inputs additionally have switchable polarities.
Key Features
With a noise level of only 70μVrms, a noise spectral density below 1 μV/√Hz in a bandwidth of 300kHz and at ±400 V output voltage, the HVA4 offers the lowest noise on the market in scanning probe applications and is ideally suited for low-temperature applications. The HVA4’s differential inputs guarantee that the excellent noise figures are not degraded when used in a typical experimental setup. The output of the HVA4 remains absolutely stable even when driving large capacitive loads.
- 6-channel high voltage amplifier
- 4 gain settings with digital read-back
- Lowest noise and drift
- Stable with capacitive loads, short-circuit proof
- Optional fast output for single channel piezo motors
