PDAM005B-Si photodetector is a rated bandwidth, fixed gain photodetector used for detecting optical signals. The optical signal is input from the photoelectric sensor surface, and the output is in the form of voltage through BNC. This product can measure the optical signal in the wavelength range of 400nm to 1100nm. Refer to appendix table for specific performance parameter data. The housing of the LD-PD photodetector has inch 1/4"-20 threaded mounting holes, which can be easily installed and fixed. The housing part also comes with two different sizes of threaded adapters, which are suitable for industrial and scientific research applications, it can be easily adapted to external optical components, such as filters, attenuators, lenses, FC fiber adapters, etc. This product includes a plastic dust cover. Please refer to the third chapter for specific installation. Each photodetector is equipped with a linear DC power supply with an output of 9V, and the rated input voltage of this DC power supply is 220VAC/50Hz.
Product model
| 140MHz Si Amplifier Photodetector |
PDA12A8B4G-VIS | Spectral Response 400 - 1100nm; Bandwidth 140MHz; Active diameter 1.2mm* 1.2mm; Rise time 2.5nS; Material Si | Response wavelength: 400-1100nm Bandwidth: 140MHz |
| 50MHz Si Amplifier Photodetector |
PDA12A7B4G-VIS | Spectral Response 400 - 1100nm; Bandwidth 50MHz; Active diameter 1.2mm* 1.2mm; Rise time 7nS; Material Si | Response wavelength: 400-1100nm Bandwidth: 50MHz |
| 5MHz Si Amplifier Photodetector |
PDA25A6B4G-VIS | Spectral Response 400 - 1100nm; Bandwidth 5MHz; Active diameter 2.5mm* 2.5mm; Rise time 68nS; Material Si | Response wavelength: 400-1100nm Bandwidth: 5MHz |
| 200KHz Si Amplifier Photodetector |
PDA36A5B6G-VIS | Spectral Response 320 - 1100nm; Bandwidth 200KHz; Active diameter 3.6mm * 3.6 mm; Rise time 1.7µS; Material Si | Response wavelength: 400-1100nm Bandwidth: 200kHz |
| 20KHz Si Amplifier Photodetector |
PDA25A4B8G-VIS | Spectral Response 400-1100nm; Bandwidth 20KHz; Active diameter 2.5mm*2.5 mm; Rise time 18µS; Material Si | Response wavelength: 400-1100nm Bandwidth: 20kHz |
Parameter
Features
General Parameters:
● Spectral Response: 400-1100nm
● Material: Si
● Bandwidth (Hz): 5 MHz
Product Characteristics:
● Low noise, less than ±l mV
● The overshoot is small, and the overshoot voltage is less than 2.5%.
● Gain stability: gain error is less than 1%
● Dark bias voltage output noise: less than 1 mV (rms)
Specifications
PN# | PDA12A8B4G-VIS | PDA12A7B4G-VIS | PDA25A6B4G-VIS | PDA36A5B6G-VIS | PDA25A4B8G-VIS |
Wavelength | 400 - 1100 nm | 400 - 1100 nm | 400 - 1100 nm | 320 - 1100 nm | 400 - 1100 nm |
Bandwidth | DC - 140MHz | DC - 50MHz | DC - 5MHz | DC - 200KHZ | DC - 20KHZ |
Rise time | 2.5 nS | 7 nS | 68 nS | 1.7 µS | 18 µS |
Gain | Hi-Z load | 1*104 V/A | 5*104 V/A | 1*105 V/A | 1.68*106 V/A | 1*108 V/A |
50Ω load | 5*103 kV/A | 2.5*104 kV/A | 5*104 V/A | 8.4*105 V/A | — |
Output Noise (RMS) | 850µV .typ | 800µV .typ | 700µV .typ | 1mV .typ | 1.5mV .typ |
NEP | 2*10-11 W/√HZ | 6.3*10-12 W/√HZ | 5.3*10-12 W/√HZ | 2.2*10-12 W/√HZ | 1.8*10-13 W/√HZ |
Active diameter | 1.2mm*1.2 mm | 1.2mm*1.2 mm | 2.5mm*2.5 mm | 3.6mm*3.6mm | 2.5mm*2.5 mm |
Operating temperature | 10-50℃ | 10-50℃ | 10-50℃ | 10-50℃ | 10-50℃ |
Supply Voltage | ±9V | ±9V | ±9V | ±9V | ±9V |
Spectral Sensitivity

AC Transmission Characteristics

Appearance and Installation

Test Case:
Test light source:
PN:PL-DFB-9672.4-B-A81-PA
SN:DO3431e-q2-Bo2-A19
Test conditions: 25℃, laser current scanning for 15-23mA, detector output as shown in the following figure.

This detector has high detection accuracy at 972nm, and can also detect weak light (tens of microwatts).
Outline Diagram and Die Dimensions


Application
● Display panel detection
● Stroboscopic analysis of LED lighting
● Measurement of flicker frequency and power of toy light
● Gas analysis
Product model
PDA12A8B4G-VISResponse wavelength: 400-1100nm
Bandwidth: 140MHz
PDA12A7B4G-VISResponse wavelength: 400-1100nm
Bandwidth: 50MHz
PDA25A6B4G-VISResponse wavelength: 400-1100nm
Bandwidth: 5MHz
PDA36A5B6G-VISResponse wavelength: 400-1100nm
Bandwidth: 200kHz
PDA25A4B8G-VISResponse wavelength: 400-1100nm
Bandwidth: 20kHz
Parameter
General Parameters:
● Spectral Response: 400-1100nm
● Material: Si
● Bandwidth (Hz): 5 MHz
Product Characteristics:
● Low noise, less than ±l mV
● The overshoot is small, and the overshoot voltage is less than 2.5%.
● Gain stability: gain error is less than 1%
● Dark bias voltage output noise: less than 1 mV (rms)
PN#
PDA12A8B4G-VIS
PDA12A7B4G-VIS
PDA25A6B4G-VIS
PDA36A5B6G-VIS
PDA25A4B8G-VIS
Wavelength
400 - 1100 nm
400 - 1100 nm
400 - 1100 nm
320 - 1100 nm
400 - 1100 nm
Bandwidth
DC - 140MHz
DC - 50MHz
DC - 5MHz
DC - 200KHZ
DC - 20KHZ
Rise time
2.5 nS
7 nS
68 nS
1.7 µS
18 µS
Gain
Hi-Z load
1*104 V/A
5*104 V/A
1*105 V/A
1.68*106 V/A
1*108 V/A
50Ω load
5*103 kV/A
2.5*104 kV/A
5*104 V/A
8.4*105 V/A
—
Output Noise (RMS)
850µV .typ
800µV .typ
700µV .typ
1mV .typ
1.5mV .typ
NEP
2*10-11 W/√HZ
6.3*10-12 W/√HZ
5.3*10-12 W/√HZ
2.2*10-12 W/√HZ
1.8*10-13 W/√HZ
Active diameter
1.2mm*1.2 mm
1.2mm*1.2 mm
2.5mm*2.5 mm
3.6mm*3.6mm
2.5mm*2.5 mm
Operating temperature
10-50℃
10-50℃
10-50℃
10-50℃
10-50℃
Supply Voltage
±9V
±9V
±9V
±9V
±9V
Spectral Sensitivity
AC Transmission Characteristics
Appearance and Installation
Test Case:
Test light source:
PN:PL-DFB-9672.4-B-A81-PA
SN:DO3431e-q2-Bo2-A19
Test conditions: 25℃, laser current scanning for 15-23mA, detector output as shown in the following figure.
This detector has high detection accuracy at 972nm, and can also detect weak light (tens of microwatts).
● Display panel detection
● Stroboscopic analysis of LED lighting
● Measurement of flicker frequency and power of toy light
● Gas analysis