Analog-To-Digital Converter (Adc) - FLIR GRASSHOPPER 3 Series Technical Reference

1.5

Analog-to-Digital Converter (ADC)

All CCD camera sensors incorporate an ADC to digitize the images.
All CMOS camera sensors incorporate an on-chip ADC to digitize the images.
The Grasshopper3 PGE's ADC is configured to a fixed bit output. If the
pixel than the ADC output, the least significant bits are dropped. If the pixel format selected has greater bits per
pixel than the ADC output, the least significant bits are padded and can be discarded by the user. Image data is
left-aligned across a 2-byte format.
For example, for a 12-bit output, the least significant 4 bits are padded in order to fill 2 bytes. E.g. 0xFFF0.
A 14-bit conversion produces 16,384 possible values between 0 and 65,532.
The following table illustrates the most important aspects of the ADC.
The bit depth of the output varies between sensors and can be seen in the table below.
2/10/2017
©2013-2017
FLIR Integrated Imaging
Solutions Inc. All rights reserved.
Resolution
Black Level Clamp
Pixel Gain Amplifier
Variable Gain Amplifier
Model
GS3-PGE-23S6M-C
GS3-PGE-23S6C-C
GS3-PGE-50S5M-C
GS3-PGE-50S5C-C
GS3-PGE-60S6M-C
GS3-PGE-60S6C-C
GS3-PGE-91S6M-C
GS3-PGE-91S6C-C
®
Grasshopper 3 PGE Technical Reference
1 Grasshopper3 PGE Specifications
pixel format selected has fewer bits per
14-bit, 65 MHz
0 LSB to 1023 LSB, 1 LSB steps
-3 dB to 6 dB, 3 dB steps
6 dB to 42 dB, 10-bit
ADC
10-bit
10-bit
14-bit
14-bit
14-bit
14-bit
14-bit
14-bit
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