PixelSensor 8 wavelength band photodiode array multi-spectral sensor

Wavelength-selective detectors for compact multispectral devices

Pixelsensor from Spectrecology
PixelSensor 8 wavelength photo-diode array. Low cost multispectral sensing – Spectrecology

PixelSensor multi-spectral sensors use exclusive on-chip filtering to pack up to eight wavelength selective photodiodes into a compact array < 1 cm2 for simpler and smaller optical devices.

One PixelSensor typically replaces several components, delivering more signal and shrinking multispectral instruments for applications from portable spectroscopy to fluorescence detection. The PixelSensor VIS splits the visible spectrum into eight discrete color bands. Customized OEM versions are available with userdefined spectral bands.

PixelSensor’s unique wafer-level optical filters suppress background light and enhance passband transmission, improving contrast and sensitivity. Designed for low noise and fast response time, the 20-pin LCC package can be surface or socket mounted. Optional Developer Boards and accessories provide designers with hardware and software tools for rapid prototyping and development – to get you started with spectral sensing in minutes and to help move your device quickly from concept to scalable production.

PixelSensor spectral response -- Spectrecology
PixelSensor with 8 bands in the visible spectrum and photodiode response curve

 

PixelSensor comes with a basic user interface (shown below) allowing you to start collecting data right away.

 

PixelSensor software interface - Spectrecology
PixelSensor software interface

 

 

PixelSensor specifications:

 

Sensor

Spectral Filters Standard & custom spectral bands
(10-100nm FWHM typical)
Spectral Range VIS-NIR (400-1000nm),
Si photodiodes
Package LCC Package (up to 8 spectral bands)

Dimensions

Dimensions 8.9 x 8.9 x 2.4mm
(0.35″ x 0.35″ x 0.1″)
Active Area 1.0 x 0.8mm
(0.04″ x 0.033″)
Volume < 200mm3
(0.015in3)

Performance Characteristics

Characteristic Symbol Test Min Typical Max Units
Dark current ID VR= 10V 2 8 nA
Shunt resistance RSH VR= 10mV 100 M Ω
Junction capacitance CJ VR= 0V, f=100 kHz
VR= 50V, f=100 kHz
6
0.6
7
0.7
pF
Spectral range ^range Spot scan 400 1100 nm
Breakdown voltage VBR 1= 10µA 75 V
Noise equivalent power NEP VR=5V@ λ = peak 5×10-14 W/√Hz
Response time t RL= 50 Ω, VR= 50V 6.0 ns
Absolute Maximum Rating
Reverse voltage VBR 75 V
Operating temperature TO -40 to +80 ° C

OEM Custom Versions

Contact us for custom spectral bands & volume pricing  mike@spectrecology.com

PixelSensor multi spectral sensor layout - Spectrecology
Chip layout and pinouts