M O D U L E
APD module
C5331 series
Operates an APD with single 5 V supply
Features
Applications
Choice of high sensitivity APDs
APD evaluation
A total of 11 types are available, including 6 types of 800 nm band APDs with
active areas from φ0.2 to φ5 mm, 3 types of short-wavelength APDs with active
areas from φ1 to φ5 mm, and FC connector types.
High sensitivity detection board optimized for APD evaluation
An APD and high-speed current-to-voltage amplifier circuit are mounted on a
compact board. The high-speed current-to-voltage amplifier circuit features a
low-noise configuration ideal for the APD signal readout and operates at high
speeds yet with high sensitivity.
Spatial light transmission
Bar code readers
Laser radars
Optical rangefinders
Optical communications
Easy handling
Single 5 V supply operation
Built-in temperature-compensated bias voltage circuit
Controls the bias voltage with a thermosensor to keep the APD gain constant.
Gain is stabilized to as low as 2.5 ꢀ Typ. at ambient temperatures of 25 10 ꢁC.
Ripple noise usually inherent to high voltage power supplies is also minimized.
Compact and lightweight
The circuit board is no larger than business card size, and weighs only 52 g.
Low price
Custom devices available with different dimensions and specifications
Selection guide
ꢀ
Frequency bandwidth
-3 dB
(Hz)
Peak sensitivity
wavelength
(nm)
Active area
(mm)
Type No.
Type of APD
Standard type
C5331
f1.5
f0.2
C5331-30 *1
C5331-01
C5331-31 *2
C5331-02
C5331-03
C5331-04
C5331-05
C5331-11
C5331-12
C5331-13
4 k to 100 M
800
620
f0.5
f1.0
f3.0
f5.0
f1.0
f3.0
f5.0
4 k to 80 M
4 k to 50 M
4 k to 100 M
4 k to 40 M
4 k to 20 M
Short-wavelength type
*1: C5331 + FC connector
*2: C5331-01 + FC connector with lens
(compatible with GI 50/125 fiber)
ꢀ Block diagram HIGH VOLTAGE GENERATOR
+5 V
+200 V
+5 V
BNC CONNECTOR
VOLTAGE CONTROLLER
Note: Gain is preset to 30 prior to shipping.
TEMPERATURE MONITOR
HIGH-SPEED CURRENT-TO-VOLTAGE CIRCUIT
KACCC0013EA
APD
1