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Output |
nominal |
±300 V |
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Bandwidth |
- |
DC to ca 250kHz |
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Amplification |
- |
100 times, fixed (other available on request) |
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Load |
type |
resistive || capacitive |
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Impedance |
input |
100 kohm || 10 pF |
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output |
ca 1 ohm in the linear mode |
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Voltage |
input |
nominal ±3 V |
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absolute maximum |
20 V peak |
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Current |
output |
75 mA continuous |
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Slew Rate |
output |
ca 300 V/µs |
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Operating Ambient Temperature |
0°C to 30°C |
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Storage Temperature |
0°C to 60°C |
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Relative Humidity |
up to 90% (operation), 30% to 50% (storage) |
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Power Requirements |
100/110 V or 220/230 V, 50/60 Hz |
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Fuse |
100/110 V: 3.15 A (slow), 220/230 V: 2 A (slow) |
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Dimensions (H/W/L) |
102 x 257 x 262 (mm) |
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Weight |
4 kg |
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Country of Origin |
Sweden |
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The input amplitude should normally be kept within ±3 V and not exceed ±20 V. Above ±4V the input protection network will limit the signal amplitude and cause distortion. It is equipped with a microfuse rated at 15 mA, which will be blown if the input voltage exceeds ca 30 V. Spare fuse is provided inside the instrument case. The input protection network effectively cuts accidental spikes and overshoots.
Replacement fuses can be obtained from FLC Electronics AB or from resellers of Littefuse. The part code is 272.015
The amplifier is intended to drive resistive and/or small capacitive loads. The maximum capacitive load depends on the slew rate of the amplifier. This is normally set at the factory to ca 300 V/µs which suits well loads in the range of 400 pF. This limit includes the capacitance of the connection cable (ca 100 pF/m for a standard coaxial cable). Increasing the capacitive load causes overshoot to appear. If a larger capacitive load is required then the slew should be reduced accordingly. Such an adjustment can be made before shipment. It may also be performed at a later date by qualified personnel and the factory should be contacted for advice. Inside the cabinet exist hazardous voltage levels and the amplifier circuit is extremely sensitive to static discharge.
Overloading the output may cause an overshoot which might be dangerous for connected devices.
The amplifier cannot be used to drive inductive load.
The continuous output current limit is 75 mA. The output is equipped with a current limiting circuit which withstands accidental short-circuits. It, however, does not constitute sufficient protection against prolonged short-circuiting or overload.
The amplifier may be overheated when the output is short-circuited for a longer time.
The graph below shows full-scale frequency response of A600 amplifier. Red dots show the case of a load consisting of a 5kohm resistor in series with 100pF capacitor. Green squares show the response to pure capacitive load of 390pF. In the latter case the overshoot on the falling edge is about 3%. If anticipated load is smaller or larger overshoot is acceptable then the A600 amplifier can be prepared with for significantly higher frequency.
page revised April 22, 2006