122Alvium USB Cameras User Guide V4.6.1
Specifications
Alvium 1800 U-291m/c
Feature Specification
1800 U-291m (monochrome) 1800 U-291c (color)
Sensor model Sony IMX421
Resolution 1944 (H) x 1472 (V); 2.9 MP
Sensor type CMOS
Shutter type Global shutter (GS)
Sensor size Type 2/3; 8.8 mm × 6.6 mm; 10.8 mm diagonal
Pixel size 4.5 µm × 4.5 µm
CRA 0 deg
Sensor bit depth (ADC) 8-bit, 10-bit, 12-bit; Adaptive (10-bit, 12-bit)
Monochrome pixel formats
Mono8 (default), Mono10,
Mono10p, Mono12, Mono12p
Mono8, Mono10, Mono10p,
Mono12, Mono12p
YUV color pixel formats Not applicable
YCbCr411_8_CbYYCrYY,
YCbCr422_8_CbYCrY,
YCbCr8_CbYCr
RGB color pixel formats Not applicable BGR8, RGB8 (default)
Raw color pixel formats Not applicable
BayerRG8, BayerRG10,
BayerRG10p, BayerRG12,
BayerRG12p
Maximum frame rate 144 fps (at 450 MByte/s)
Exposure time 14 µs to 10 s (450 MByte/s)
Exposure modes Timed, TriggerControlled, TriggerWidth
Gain 0 dB to 48 dB; 0.1 dB increments
Digital binning Horizontal: 1 to 8 columns; Vertical: 1 to 8 rows
Sensor binning (H × V) 2 × 2 (Sum, Average) Not applicable
Multiple ROI (H × V) Free | Tile | Horizontal: 1 × 1 to 1 × 4 | Vertical: 1 × 1 to 4 × 1
Image buffer (RAM) 256 KByte
Non-volatile memory (Flash) 1024 KByte
GPIOs
4 programmable GPIOs
As direct inputs (push-pull): 0 to 5.5 VDC
As direct outputs (push-pull): 0 to 3.3 VDC at 12 mA
Power requirements Power over USB; External power
Power consumption
(typical, at 5 VDC)
USB power: 4.0 W
External power: 4.2 W
Table 46: Alvium 1800 U-291m/c specifications (sheet 1 of 2)
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