Dual Channel High Voltage Linear Amplifier
The Pendulum Instruments Dual Channel High Voltage Linear Amplifier A400D contains two independent A400 amplifiers that share common ground reference and power supply. This unit has a fixed amplification of 20 times and capable of bipolar high voltage output of ±200. Any other signal source with amplitude up to ±10 V can be used as an input device. The input amplitude should normally be kept within ±7.5 V. The A400 High Voltage Linear Amplifier is equipped with a microfuse rated at 15 mA, which will be blown if the input voltage exceeds 300% of the maximum.
Full and small-signal frequency responses without load (red and orange marks) and with 400 pF capacitive load (blue and green marks), respectively, are shown in the diagram below: