-
x10 Adjustable Gain (x1 Steps)
-
Input bandwidth up to 250 Mhz
-
50 Ohm Input Impedance
-
±2 V output dynamics
-
50 Ohm loads driven
-
Cascadeable Channels
-
Rise/fall time smaller than 1.5 ns
-
I/O delay smaller than 3 ns
The CAEN Mod. N978 is a 4 channel fast rise time amplifier housed in a one unit wide NIM module; each channel features a voltage gain variable in the range 0 ÷ 10. Channels are non-inverting and bipolar: they amplify both positive and negative signals. Input bandwidth is 250 MHz for signals up to 50 mVpp and decreases for larger ones (up to 100 MHz @ 300 mVpp). Gain setting can be performed independently for each channel via four rotary handles. Channels can be cascaded in order to obtain larger gain values. Each channel is provided with three LEMO 00 connectors, one for the input and two bridged for the output. The board features a ±2 V output dynamics. 4 screw-trimmers (one per channel) allow the offset calibration which operates over a ±30 mV range.
You also may be interested in…
NIM8301
NIM8302
NIM8305
NV8020A
NIM8302P
NIM8303
NIM8306
NIM8304
Request a Quote
Compare
|
Image
|
Name
|
Package
|
No. of Channels
|
Gain
|
Bandwidth (MHz)(1)
|
Coupling
|
Input Impedance (Ω)
|
Output Rise Time (ns)
|
Output Range (V)
|
Equivalent Input Noise (µV RMS)
|
In Conn.
|
Out Conn.
|
|
|
V975 |
VME |
8 |
10 |
250 (gain: 10x) |
DC |
50 |
< 1.5 |
± 2 |
< 50 (gain: 10x) |
LEMO |
LEMO |
|
|
V974 |
VME |
4 |
1 ÷ 10 |
170 (gain: 10x) |
DC |
50 |
< 3 |
± 2 |
< 70 (gain: 10x) |
LEMO |
LEMO |
|
|
N978 |
NIM |
4 |
1 ÷ 10 |
250 (gain: 10x) |
DC |
50 |
< 1.5 |
± 2 |
< 50 (gain: 10x) |
LEMO |
LEMO |
|
|
N979 |
NIM |
16 |
10 (Optional in 2 ÷ 9 range) |
250 (gain: 10x) |
DC |
50 |
< 1.5 |
± 2 |
< 50 (gain: 10x) |
LEMO |
LEMO |
|
|
N979B |
NIM |
16 |
2, 4, 8, 10 |
250 (gain: 10x) |
DC |
50 |
< 1.5 |
± 2 |
< 50 (gain: 10x) |
LEMO |
LEMO |
Technical Specifications
|
Packaging |
1U-wide NIM unit |
|
Voltage gain |
0 ÷ 10 |
|
Rise time |
< 1.5 ns (unipolar input, ±25 mV max. amplitude) |
|
Band width |
DC to 250 MHz with ±25 mV input signal |
|
Output dynamic range |
±2 V |
|
Max input amplitude |
200 mV peak-to-peak |
|
Inputs channels |
4, DC coupled, 50 Ohm ± 2% impedance |
|
Output channels |
4 with Fan-Out of two, drive 50 Ohm load |
|
Noise |
< 50 µV RMS (referred to the input) |
|
Offset nulling range |
±30 mV (measured with 0 Ohm termination on input) |
|
Interchannel insulation |
50 dB |
|
Input reflection |
< 10% |
|
I/O Delay |
< 3 ns |
|
Offset uniformity |
±4 mV (typical) |
|
NOTE |
Specifications measured with gain = 10 |
Footer
