Quadrant Photodiodes
Accurate Position Tracking
Our standard InGaAs Quadrant Photodiode consists of four separate active regions on one detector. Each segment gives a current output related to the location of light on the detector. This configuration is ideal for precise position detection and alignment applications.
Features
- Standard packages (TO-46, TO-5, and LCC)
- Spectral response from 800 nm to 1700 nm
- Chip active diameters: 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm and 5 mm
- High sensitivity
- Low crosstalk
- High shunt resistance
- Low dark current
- Low capacitance for high segment bandwidth
- Custom configurations available with tailored packaging, coatings, filters, and more
- Double quad configurations
Applications
- Laser Guidance for Free Space Optical Communication
- Optical Tweezers
- Beam Profiling
Optoelectronic Characteristics @ 23 ºC ± 2 ºC
| Active Diameter | 0.5 mm | 1 mm | 1.5 mm | 2 mm | 3 mm | |
|---|---|---|---|---|---|---|
| Part Number | N17S4x0MC-50-T46 N17S4x0MC-50-LCC6 |
N17S4x0MC-100-T46 N17S4x0MC-100-T5 N17S4x0MC-100-LCC6 |
N17S4x0MC-150-T46 N17S4x0MC-150-T5 N17S4x0MC-150-LCC6 |
N17S4x0MC-200-T5 N17S4x0MC-200-LCC6 |
N17S4x0MC-300-T5 N17S4x0MC-300-LCC28 |
|
| Legacy Part Number | GAP500Q | GAP1000Q | GAP1500Q | GAP2000Q | GAP3000Q | |
| Spectral Response Range | 800–1700 | 800–1700 | 800–1700 | 800–1700 | 800–1700 | nm |
| Peak Wavelength (typ) | 1550 | 1550 | 1550 | 1550 | 1550 | nm |
| Responsivity @ 850 nm (min/typ) | 0.2 / 0.27 | 0.2 / 0.27 | 0.2 / 0.27 | 0.2 / 0.27 | 0.2 / 0.27 | A/W |
| Responsivity @ 1300 nm (min/typ) | 0.85 / 1.0 | 0.85 / 1.0 | 0.85 / 1.0 | 0.85 / 1.0 | 0.85 / 1.0 | A/W |
| Responsivity @ 1550 nm (min/typ) | 0.93 / 1.1 | 0.93 / 1.1 | 0.93 / 1.1 | 0.93 / 1.1 | 0.93 / 1.1 | A/W |
| Dark Current @ VR (typ) | 0.1 / 2 @ 5 V | 0.2 / 2 @ 5 V | 0.4 / 4 @ 5 V | 0.5 / 5 @ 5 V | 1 / 8 @ 2 V | nA |
| Shunt Resistance @ 10 mV (min/typ) | Not available | 200 typ | 145 typ | 50 / 80 | 20 / 60 | MΩ |
| Capacitance @ 0 V (typ/max) | 10 typ | 20 / 45 | 85 / 95 | 120 / 140 | 220 / 400 | pF |
| Capacitance @ VR (typ/max) | 4 / 6 @ 5 V | 10 / 15 @ 5 V | 20 / 30 @ 5 V | 45 / 80 @ 5 V | 100 / 200 @ 2 V | pF |
| NEP @ λPEAK @ VR (typ) | 5.2 | 7.3 | 10.3 | 11.5 | 16.3 | fW/Hz¹ᐟ² |
| Linearity (±0.2 dB) @ 0 V | +6 | +6 | +6 | +6 | +6 | dBm |
| TO Packages | TO-46 | TO-46, TO-5 | TO-46, TO-5 | TO-5 | TO-5 | |
| Leadless Ceramic Packages | LCC-6 | LCC-6 | LCC-6 | LCC-6 | LCC-28 | |
| Storage Temperature | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | ºC |
| Operating Temperature | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | ºC |
| Max Reverse Voltage | 25 | 25 | 25 | 25 | 25 | V |
| Max Reverse Current | 10 | 10 | 10 | 10 | 10 | mA |
| Max Forward Current | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | mA |
Custom multi-element quads are also available.