PART/ C30683-900-R5DH, C30683-1550-R08DH, C30683-1550-R2BH
C30683 - APD Preamplifier Modules with high-speed TIA, TO-8
The C30683 Series combines Excelitas' avalanche photodiodes (APD) with a high-speed transimpedance amplifier (TIA) in a hermetically sealed TO-8 package for extreme low-light detection. The modules deliverbandwidth of up to 450 MHz, making them ideal for demanding applications.
Excelitas’ high-performance C30683 Series of APD preamplifier modules provide high bandwidth, low noise, and high responsivity for precision low-light detection. These capabilities make the series well suited for demanding applications such as LiDAR, where longer ranges and higher resolutions are essential.
This product includes a built-in thermistor to monitor the APD temperature and compensate the HV supply, maintaining the APD at a fixed gain.
The C30683 APD preamplifier modules are available with both silicon and InGaAs APDs.
| Parameter | C30683-900-R5DH | C30683-1550-R08DH | C30683-1550-R2BH |
| APD | Silicon, C30737, 500 µm | InGaAs, C30645, 80 µm | InGaAs, C30662, 200 µm |
| Responsivity | 550 kV/W at 900 nm | 120 kV/W at 1550 nm | 120 kV/W at 1550 nm |
| NEP at Responsivity | 37 fW/√Hz | 250 fW/√Hz | 250 fW/√Hz |
| System Bandwidth | 420 MHz | 450 MHz | 300 MHz |
Silicon or InGaAs APD
APD integrated with first gain stage in hermetically sealed TO-8
50 Ω AC load capability (AC-coupled)
+3.3 V amplifier operating voltage
Differential output
Extreme low-light detection
Free-space optical communication
Analytical instrumentation
LiDAR and range finding
Distributed Temperature Sensing (DTS)
Confocal microscopy
| Parameter | C30683-900-R5DH | C30683-1550-R08DH | C30683-1550-R2BH |
| APD | Silicon, C30737, 500 µm | InGaAs, C30645, 80 µm | InGaAs, C30662, 200 µm |
| Responsivity | 550 kV/W at 900 nm | 120 kV/W at 1550 nm | 120 kV/W at 1550 nm |
| NEP at Responsivity | 37 fW/√Hz | 250 fW/√Hz | 250 fW/√Hz |
| System Bandwidth | 420 MHz | 450 MHz | 300 MHz |
Silicon or InGaAs APD
APD integrated with first gain stage in hermetically sealed TO-8
50 Ω AC load capability (AC-coupled)
+3.3 V amplifier operating voltage
Differential output
Extreme low-light detection
Free-space optical communication
Analytical instrumentation
LiDAR and range finding
Distributed Temperature Sensing (DTS)
Confocal microscopy