The proprietary readout integrated circuit design contains functions that reduce dark current for applications that demand the highest performance. The LC package provides a "no moving part" solution for vibration resistant, highly calibrated instruments that require long term stability. The LC series InGaAs linear arrays are available with 256 elements of extended response InGaAs material. Anti-blooming protection prevents charge flow from saturated pixels, allowing for increased intra-scenic dynamic range. The autozero function reduces dark current and non-uniformity, extending the detector’s utility to higher temperatures and longer exposure times. The photodetector arrays are hybridized with CMOS readout integrated circuits (ROIC) of SUI’s exclusive design to offer maximum noise immunity and sensitivity. Operating circuit designs need only provide for one analog supply and three digital control lines for optimum ROIC performance. Four separate gains are selectable with a serial input. The array is available with a two-stage thermoelectric cooler for temperature stabilization and monitoring. SUI LC-Series photodiode arrays are rugged, reliable, and available in volume.
Benefits:
- Wavelength range of 1.0 μm to 2.6 μm
- Up to 108 pixels per second
- 1.256 to 2.58 electrons capacity
- Antiblooming protection
- Autozero for reduced dark current
- Serial input for mode control
- Integrate-while-read for minimum overhead
Features:
- Autozero reduction of pixel variation & dark current
- Wavelength range of 1.0 µm to 2.6 µm
- Line rates up to 18.9 klps with 1 ADC and 5 MHz clock in Autozero mode
- Full Well capacity options from 1.25 to 250 M-electrons
- Antiblooming protection
- Serial input for mode control
- Integrate-while-read for minimum overhead
Commercial Applications:
- FTIR/NIR Interferometry
- NIR Spectroscopy
- Biomedical Analysis
- Plastic Recycling
- Industrial Process Control
Electrical Inputs:
Parameter/Description |
Unit |
Min. |
Nom. |
Max. |
Power supply voltage VDD |
V |
4.90 |
5.00 |
5.25 |
Power supply ground VSS |
V |
|
0 |
|
Digital inputs and clocks, high |
V |
2.0 |
5.0 |
VDD |
Digital inputs and clocks, low |
|
|
VSS |
0.8 |
Pixel clock frequency |
MHz |
0.01 |
|
12.5 |
Pixel Performance:
Feedback |
Typical |
Typical |
Typical |
Typical |
Capacitor |
Gain |
Capacity |
Read noise1 |
Dynamic Range |
0.1 pF |
1.6 μV/e |
1.25 Me |
800 e RMS |
1700:1 |
1.0 pF |
160 nV/e |
12.5 Me |
1 ke RMS |
4300:1 |
10.0 pF |
16 nV/e |
125 Me |
10 ke RMS |
5000:1 |
20.0 pF |
8 nV/e |
250 Me |
10 ke RMS |
5000:1 |
1 Largest photodiode, autozero off. |
Photodiode Performance at -20°C:
Photodiode type |
2.6 μm, 250 μm |
Quantum efficiency (QE) at peak, min. |
50% |
Dark current, autozero off, max. |
2nA |
Inoperable pixels, maximum |
5% |
Photoresponse nonuniformity (PRNU), max. |
±10% |
Absolute Maximum Ratings:
Parameter |
Unit |
Min. |
Typ |
Max. |
Power consumption (VDD=5.00 V), 4 outputs, high power mode |
mW |
|
|
350 |
Power consumption (VDD=5.00 V), 1 output, low power mode |
mW |
|
|
135 |
Operating temperature range |
°C |
-20 |
|
+80 |
Storage temperature range |
°C |
-20 |
|
+85 |
Available Configurations:
Configuration |
SU256LSC-2.6T2-0250 |
Photodiodes |
256 |
Outputs |
1, 2, 4 |
Material |
2.6 μm |
TEC |
Two-stage |
Aperture |
250 μm |
Sensors Unlimited LC Series Datasheet
Sensors Unlimited LC Series Linear Indium Gallium Arsenide Photodiode Arrays User Manual
Sensors Unlimited InGaAs Linear Photodiode Array Product Family Datasheet
Sensors Unlimited Product Family Brochure