APD module integrated with peripheral circuits

Features
● Uses high sensitivity APD
   Two types of APDs with different active areas
   (φ0.5 mm, φ3.0 mm) are provided.
● Choice of high sensitivity type and low-light-level detection type
   C4777 detects optical signals from 10 kHz to 100 MHz
   pulsed light and is suitable for spatial light transmission and
   rangefinder applications. C4777-01 provides a high
   photoelectric sensitivity of 1.25 × 109 V/W and low NEP of 2 fW/Hz1/2,
   making it excellent for fluorescence measurement and NOx
   monitors where low-light-level detection is essential.
● Built-in temperature control circuit
   An APD chip, thermoelectric cooler and thermosensor are
   sealed in the same package along with the temperature
   control circuit, to keep the APD chip temperature constant
   and ensure stable measurements.
● Simple operation
   Operates by just connecting to a DC power supply (+5 V, ±15 V).

Applications
C4777
● Spatial light transmission
● Optical communication
● Rangefinder

C4777-01
● Fluorescence measurement
● NOx monitor sensor
● Particle counters