InGaAs amplified photodetector 800-1700nm (5MHz)

The InGaAs photodetector is a photodetector with a rated bandwidth and fixed gain, designed for detecting optical signals. The optical signal is input through the sensor surface, and the output is provided as a voltage via BNC. This product can measure optical signals in the wavelength range of 800nm to 1700nm. Detailed performance parameters are provided in the appendix table. The LD-PD photodetector housing includes mounting holes with a 1/4"-20 threaded pattern for easy installation and fixation. The housing also comes with two different sizes of threaded rings, suitable for both industrial and research applications, enabling easy adaptation to external optical components such as filters, attenuators, lenses, and FC fiber optic adapters. This product includes a plastic dust cover. For specific installation instructions, please refer to Chapter 3. Each photodetector is provided with a ±9V DC linear power supply, with an input rated voltage of 220VAC/50HZ.

Product features：Low noise, less than ±1mV、 Small overshoot, overshoot voltage less than 2.5%、 Gain stability: Gain error less than 1%、 Dark bias voltage output noise: Less than 1mV (rms)

Application area：Display panel testing、 LED lighting flicker analysis、 Toy light flicker frequency and power measurement、 Gas analysis

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Part Number

PDAM20A6B4G-InGaAS

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General Parameters

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Dimensional Drawing

parameter

PN#	PDA M 005B-Si	PDA M 36A5B6G-SI	PDA M 20A6B4G- InGaAs
Electrical characteristics
Input voltage	±9VDC, 60mA	±9VDG 100mA	±9VDC. 100mA
Probe	Silicon PIN	Silicon PIN	InGaAs PIN
Photosensitive surface	2.65mm * 2.65mm	3.6mm * 3.6mm	Diameters@2 mm
wavelength	400 nm - 1100 nm	320 nm - 1100 nm	800 nm - 1700 nm (Optional Extended 2600 nm)
Peak response	0.62A/W @850nm	0.6 A/W @960nm	0.9 A/W@1550nm
Peak response	43.6mV/ uW @850nm	1 mV/ nW @960nm	9mV/uW@1550nm
Saturation optical power	113pW@ 850nm (Hi-Z)	6uW @960nm (Hi-Z)	660 uW@1550nm (Hi-Z)
Bandwidth	DC •-5MHz	DC - 200kHz	DC - 5MHz
NEP	7.2 pW /4HZ ^1/2	2.2 pW /HZ ^1/2	64.5 pW /HZ ^1/2
Output noise (RMS)	700 uV	1 mV・typ	1.3 mV. typ
Dark current bias (MAX)	±5 mV	±1 mV	±5 mV
Rising edge/falling edge (10%-90%)	65 ns	1.7 us	68ns
Output voltage
Hi-Z	0-SV (Hi-Z)	0-6V (Hi-Z)	0-6V (Hi-Z)
500	0 • 2.5V (50ohm)	0 • 25V (50ohm)	0 • 25V (50ohm)
Gain multiple
Hi-Z	67.5 kV/A	1.68 MV/A	10 kV/A
50Q	33.8 kV/A	0.84 MV/A	5kV/A
Gain accuracy ( typ )	±1%	±1%	±1%
Other parameters
	Toggle switch	Toggle switch	Toggle switch
Output Interface	BNC	BNC	BNC
size	535050mm	535050mm	535050mm
weight	150g	150g	150g
Operating temperature	10-50 degrees	10-50 degrees	10-50 degrees
Storage temperature	-25℃ - 70℃	-25℃ - 70℃	-25℃ - 70℃

Reference for the amplified, ＆fixed gain model of InGaAs photodetector

model	wavelength	bandwidth	Rise time	Gain		RMS Noise	NEP	Sensing surface	Operating temperature	power supply
model	wavelength	bandwidth	Rise time	Hi-Z Load	50Ω Load	RMS Noise	NEP	Sensing surface	Operating temperature	power supply
PDA10A8B4G-NIR	800 - 1700 nm	DC - 140MHz	2.5 nS	1*10 ⁴V/A	5*10 ³V/A	760 µV . typ	4.8*10 ^-12W/√HZ	ф1 mm	10-50℃	Included (±9V)
PDA05A7B4G-NIR	800 - 1700 nm	DC - 25MHz	14 nS	1.2*10 ⁴V/A	6*10 ³V/A	1 mV . typ	1.9*10 ^-11W/√HZ	ф0.5 mm	10-50℃	Included (±9V)
PDA10A7B4G-NIR	800 - 1700 nm	DC - 12MHz	29 nS	1*10 ⁴V/A	5*10 ³V/A	800 µV . typ	2.6*10 ^-11W/√HZ	ф1 mm	10-50℃	Included (±9V)
PDA20A6B4G-NIR	800 - 1700 nm	DC - 5MHz	70 nS	1*10 ⁴V/A	5*10 ³V/A	1.3 mV . typ	6.5*10 ^-11W/√HZ	ф2 mm	10-50℃	Included (±9V)
PDA30A6B4G-NIR	800 - 1700 nm	DC - 2MHz	175 nS	1*10 ⁴V/A	5*10 ³V/A	800 µV . typ	6.3*10 ^-11W/√HZ	ф3 mm	10-50℃	Included (±9V)

Appearance and installation

Test cases :

Test light source:

PN: PL-DFB-9672.4-B-A81-PA

SN:DO3431e-q2-Bo2-A19

Test conditions: 25℃, laser current scan 15-23mA, detector output as shown below.

图片3.png

This detector has high detection accuracy at 972nm and can detect weak light (tens of microwatts).

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