The Solar MEMS Sun Sensor on a Chip (SSoC) solution is based on MEMS fabrication processes to achieve highly integrated sensing structures for high accurate sun-tracking, positioning systems and attitude determination.

The SSOC-A60 device measures the incident angle of a sun ray in two axes. The high sensitivity is based on geometrical dimensions of the design. The device includes MEMS technology with flight heritage and electronic components that are space-grade.

Every sensor is calibrated and characterized, and a look-up table is provided for its application. The use of a metal shield and a cover glass in the optical eye minimizes the ageing of the device under high radiation levels.

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Last updated: 2022-06-14

SSOC-A60 - Analog Sun Sensor on a Chip



lead time
8 to 10 wk
25 g
field of view1
±60 deg
accuracy (3-sigma)
< 0.3 deg
< 0.05 deg
average consumption
< 2 mA (light)
supply voltage
3.3 V
5 V
output voltage
0 to 3.3 V
0 to 5 V
operating temperature
-45 to 85 C
radiation tolerance
> 100 kRad (gamma)
random vibration
14.1g @ 20-2000 Hz
3000 g @ 1-100 ms

1. angular size of the view cone


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