Technical Specifications
MD 900 Series
1/3” DC Photosensor Module
*) Additional models on request
Operating Conditions
Supply voltage
Supply current
5 V dc
< 280 mA
Settling time
< 1s (time to stabilize HV after supply voltage applied)
active quenching control (internal)
1 V/ 20nA (other values on request)
0 ... 10 V dc **)
Over-illumination protection:
Current to voltage conversion factor
Output signal
Output offset
Gain
± 3mV
up to 1 x 108, via internal potentiometer (or by external control voltage
0...3 V via ext. OpAmp circuit)
Active Quenching Control
TTL-Pulse, active high, RESET: internal via timer, typ. 1 s, external
via 5 V-pulse
Frequency bandwidth
GATE voltage Vgate
DC to 1 kHz (other values on request, max. 20 kHz)
5 V: h to l set time Vca to Vch-ent +100 V : ~ 150 µs
5 V: l to h set time Vca to Vch-ent - 100 V : ~ 150 µs
1500 volts
High voltage pre-adjusted
Maximum ratings
Input voltage
+5.5 V
Operating temperature
Storage temperature
Weight
5 to 40 °C
-20 to 50 °C
~ 350 g
**) for long term operation: max. average output voltage of <
5 V (anode current of <100 nA) is recommended
Performance Characteristics
Spectral response
Current Amplification vs Control Voltage
1,E+09
100
1,E+08
1,E+07
1,E+06
1,E+05
C 943 C 944
10
C 983
C 973
C 972
1
1,E+04
C 962
C 922
C 921
1,E+03
C 952
C 982
700
1,E+02
C 942
600
C 911
0,1
100
0,9
1,4
1,9
2,4
2,9
200
300
400
500
800
900
Control Voltage / V
Wavelength (nm)