Response wavelngth 0.9~1.7μm, Responsivity 7.5A/W@1550nm, Array size 4×4, pixel size 50μm×50μm, Active area size Φ16μm
Part Number : A4P50F-1550 |
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InGaAs and InGaAsP single-photon avalanche diode (SPAD) chips with 4×4 and 8×8 array specifications are dedicated chips for short-wave infrared single-photon detection, counting and imaging. In the Geiger working mode, each pixel of the chip operates independently and freely, and is mainly used to detect weak light signals in the near-infrared band range of 0.9~1.7μm and 0.95~1.25μm.
Parameter/Symbol | Test Condition | Min. | Max. | Unit | |
Unit DC Characteristics Tc=23±2℃ | Breakdown Voltage,Vbr | Id=10μA | 50 | 80 | V |
Responsivity,Re | λ=1.55μm/1.06μm, Vr=Vbr-2V, Φe=1μW | 7.5 | A/W | ||
Dark Current,Id | Vr=Vbr-2V, Φe=0μW | 1 | nA | ||
Capacitance,Ctot | Vr=Vbr-2V, f=1MHz | 0.25 | pF | ||
Temperature Coefficient of Breakdown Voltage,η | Top = ﹣40~﹢30℃, I=10μA, Φe=0 | 0.15 | V/℃ | ||
Breakdown Voltage Consistency,ΔVbr | Id=10μA | 0.05 | V |
Parameter/Symbol | Test Condition | Chip Module | ||||
A4P50F-1550 | A4P50F-1064 | A4(8)P100F-1550 | A4(8)P100F-1064 | |||
Unit Geiger characteristic Top=-20℃ | Photon detection efficiency,PDE | 0.1ph/pulse, λ=Response peak wavelength | ≥ 20% | |||
Normalized dark count rate*,DCR | fg=100MHz, PDE=20% | ≤ 10kHz | ≤ 5kHz | ≤ 10kHz | ≤ 5kHz | |
Afterpulse probability,APP | fg=100MHz, PDE=20% | ≤ 2.5% | ≤ 2% | ≤ 2.5% | ≤ 2% | |
Crosstalk probability,Pxt | fg=100MHz, PDE=20% | ≤ 20% | ≤ 10% |
*Supports customization for special applications:DCR<1kHz @0℃ or APP<0.5% @0℃
Absolute Maximum Ratings
Items | Parameter/Symbol | rated value |
Absolute maximum rating | storage temperature,Tstg | ﹣50℃~﹢85℃ |
(operating) ambient temperature,Tc | ﹣50℃~﹢80℃ | |
Solder temperature,Tsld(Time) | 260℃(10s) | |
DC reverse bias voltage,Vr | Vbr | |
Overbias Pulse Amplitude,Vg | 10V | |
Input optical power,Φe(Continuous ) | 1mW | |
Forward current,If(Continuous ) | 1mA | |
Electrostatic Discharge Sensitivity,ESD | ≥300V |
Chip Structure
Chip Module | A4P50F-1550/-1064 | A4P100F-1550/-1064 | A8P100F-1550/-1064 |
Array size | 4×4 | 8×8 | |
pixel size | 50μm×50μm | 100μm×100μm | 100μm×100μm |
Active area size | Φ16μm |