VIGO SYSTEM S.A.

Products

QIP



FOUR CHANNEL PREAMPLIFIER

Description

QIP is the four channel, transimpedance, AC or DC coupled preamplifier. It is dedicated for BenchTop or OEM applications and, in some cases, requires external heat sink (see Recommended Accessories).

QIP is designed to work with either biased or non-biased, uncooled, quadrant geometry detectors.

  • Very small size
  • High signal-to-noise ratio
  • Bandwidth up to 100 MHz
  • Dedicated for operation with uncooled, quadrant geometry detectors
  • Fully protected against exceeding supply voltage and reversing power supply polarity
  • Custom configurations upon request
  • Additional accessories available
Parameter
 Symbol
 Unit
 Typical Value
 Conditions, Remarks
Input Noise Voltage Density
en
nV⋅Hz-1/2
0.97 - 8.01)
 fo = 10 kHz2)
Input Noise Current Density
in
pA⋅Hz-1/2
0.2 - 3.51)
 f= 10 kHz2)
Low Cut-Off Frequency
flo
 Hz
 DC
1k, 10k
DC coupling set
AC coupling set
High Cut-Off Frequency
fhi
Hz
100k to 100M
 
Transimpedance
Ki
 V⋅A-1
up to 2×105
 
Transimpedance Range
Kimax/Kimin
-
up to 5
 dependent on the high cut-off frequency
Output Impedance
Rout
 Ω
 50
 
Output Voltage Swing
Rout
 V
 ±10
±1
 fhi ≤ 1 MHz
1 MHz < fhi ≤ 100 MHz
RL = 1 MΩ3)
RL = 50 Ω3)
Output Voltage Offset
Voff
 mV
 max ±204)
 
Power Supply Voltage
Vsup
 V
 ±15
±9
fhi ≤ 1 MHz,
1 MHz < fhi ≤ 100 MHz
Power Supply Current
Isup
 mA
 max ±50
no detector biasing
Dimensions
-
mm×mm×mm
 50×58.5×50
 width×depth×height
 Electrical characteristics @ Ta = 20 °C

 

1) The preamplifier noise may significantly reduce the system perfomance in some situations.
    This happens for large capacitance detectors operating at high frequencies
2) fo - noise measurement frequency
3) RL - load resistance
4) Measured with equivalent resistor at the input instead of the detector. It's to avoid the environmental thermal radiation's impact