BROADBAND LINEAR AMPLIFIER WITH A±B INPUTS AND DC-OFFSET
Model A400X
HIGH VOLTAGE
FIXED GAIN
BROADBAND
±200V
150mA
20x
DC to ca 500 kHz
FULL SCALE
LOW OUTPUT IMPEDANCE
HIGH SLEW RATE
<0.1 Ω
400 V/µs
GENERAL DESCRIPTION
The A400X is a broadband high voltage linear amplifier equipped with two inputs (marked +A and ±B, respectively). The output is a sum or difference of supplied signals, amplified x20, as shown in the following example:
The inverting or non-inverting function of the input B is chosen using a switch on the front panel. The inputs, when used separately, allow the unit to act as inverting or noninverting amplifier. Any function or arbitrary waveform generator or any other signal source with a voltage up to ±10 V can be used as an input device.
By means of another switch the output can be attenuated 100 times (-40dB) for safe handling.
A DC level, adjustable within 0...+10V range, is provided on the front panel from two BNC contacts marked “OFFSET OUT”. Both contacts are internally connected to simplify monitoring of the output. For bipolar operation the DC level should be supplied to ±B input.
Please note that the maximum total amplitude of superposed A and B signals should stay within ±10V range, otherwise clipping will occur.
The amplifier 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. )
Keep input signals within ±10 V range. Never connect the high voltage output to the input of the instrument!
FREQUENCY RESPONSE
Full scale frequency response without load and with 300pF and 400 pF load, respectively, is shown in the following diagram:
SUMMARY OF TECHNICAL DATA
Bandwidth:
DC to about 1 MHz at 100 Vpp
Amplification:
20 times fixed
Load: type
resistive || capacitive
Impedance: input (each)
output
1 MΩ || 30 pF, custom values possible
<0.1 Ω in the linear mode
Voltage: input
nominal ±10 V
Current: output maximum
150 mA
Slew Rate: output
ca 400 V/µs (different adjustments available on request)
Input protection fuse
15 mA (Littelfuse, part number 272.015) one spare fuse provided inside the instrument, additional fuses available from Littelfuse resellers or from FLC Electronics AB.
DC Level:
0…+10 V, max 150 mA
Operating Ambient Temperature:
0°C to 30°C
Storage Temperature:
0°C to 60°C
Relative Humidity:
up to 90% (operation)
30% to 50% (storage)
Power Requirements:
100/110 V or 220/230 V, 50/60 Hz
Fuse:
100/110 V: 3.15 A (slow), 220/230 V: 2 A (slow)
Dimensions (H/W/L):
112 x 255 x 316 (mm)
Weight:
4 kg
Country of Origin:
Sweden
Note: Specifications apply to instruments operating at 23°C±5°C ambient temperature after 15 min. warm-up time. Due to ongoing product development, specifications are subject to change without notice.
商品属性 [频率] DC to about 1 MHz at 100 Vpp