A400

GENERAL DESCRIPTION

The A400 is a general purpose linear amplifier designed for laboratory use. It is based on
a fast high-voltage operational amplifier with a feedback network chosen to give a voltage
amplification of 20 times. Any function or arbitrary waveform generator with output
voltage up to ±10 V can be used as an input device. This device outputs high voltage
signals at high frequency. It is, thus, imperative for the safe operation that the user
understands the possibilities and limitations of the instrument. Isolated BNC output
connector is used to comply with safety requirements.

INPUT AMPLITUDE

The amplitude of the input signal should normally be kept within ±10 V. The input
protection network limits the signal amplitude delivered to the power amplifier to a safe
value. It also effectively cuts accidental spikes and overshoots. However, large and/or
prolonged overvoltage at the input may blow the microfuse in the input protection
circuit. (A spare fuse is provided inside the instrument. If possible, contact
support@pendulum-instruments.com for advice before opening the instrument case.)

Benefits

• Ultra-linear Amplifiers from 70Vp-p up to 800Vp-p
• High output power, up to 2A output current
• High Bandwidth, up to 5 MHz
• High Slew rate, up to 500V/μs
• Low output impedance, down to 0.1 Ohm
• Wide range of models to suit any performance and/or budget demand