Andor Technology Zyla sCMOS 4.2 PLUS - Sensor Readout Optimization; 2.5 Sensor Readout Optimization; 2.5.1 Gain Channel Control

version 2.0 rev 18 Feb 2021
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2.5  SensorReadoutOptimization
Toallowthecameratobeoptimizedforthewidestrangeofapplicationsitisimportanttohaveexibilityinthe
readout options available, some of these include the following:
• Gain Channel Control
• Pixel Readout Rate
• ROI sub image settings
• Triggering/Synchronizationoptions(seeSection 2.6)
Theeectofdierentshuttermodes,readoutspeedanddierentROIsonframeratesisshowninTable 6.
Table 6: Maximum sustainable frame rates for all electronic shutter modes, readout speeds and gain
channel combinations for various (vertically centred) ROIs
Region
of
Interest
Shutter
Mode
Bit-
depth
Zyla 5.5 3-tap Zyla 5.5 10-tap Zyla 4.2 10-tap Zyla 5.5 USB 3.0 Zyla 4.2 USB 3.0
200
MHz
560
MHz
200
MHz
560
MHz
216
Mhz
540
MHz
200
MHz
560
MHz
216
Mhz
540
MHz
2560 x
2160
Rolling
12-bit 30 30 36 100 - - 36 40 - -
16-bit 22 22 36 75 - - 30 30 - -
Global
12-bit 18 30 18 49 - - 18 40 - -
16-bit 18 22 18 49 - - 18 30 - -
2048 x
2048
Rolling
12-bit 38 39 38 105 40 100 38 53 40 53
16-bit 29 29 38 98 40 100 38 40 40 40
Global
12-bit 19 39 19 52 - - 19 52 - -
16-bit 19 29 19 52 - - 19 52 - -
1920 x
1080
Rolling
12-bit 72 79 72 199 76 192 72 107 76 107
16-bit 59 59 72 199 76 192 72 80 76 80
Global
12-bit 35 79 35 97 - - 35 98 - -
16-bit 35 59 35 97 - - 35 80 - -
512 x
512
Rolling
12-bit 152 419 152 419 161 403 152 419 161 403
16-bit 152 419 152 419 161 403 152 419 161 403
Global
12-bit 73 201 73 201 - - 73 201 - -
16-bit 73 201 73 201 - - 73 201 - -
128 x
128
Rolling
12-bit 596 1639 596 1639 631 1578 596 1639 631 1578
16-bit 596 1639 596 1639 631 1578 596 1639 631 1578
Global
12-bit 260 716 260 716 - - 260 716 - -
16-bit 260 716 260 716 - - 260 716 - -
NOTE: The write speed of the PC hard drive can impose a further restriction on the maximum sustainable
frame rate.
2.5.1 Gain Channel Control
TheZylaoerstheuserachoiceoftwo12-bitgainchannels(i.e.highorlowgain)oracombined‘16-bit’
setting. The user can choose to stay with 12-bit single gain channel data if dynamic range is not critical,
resultinginsmallerlesizes.Thisinturnoersfasterframerateswhencontinuouslyspoolingthroughthe
Camera Link interface and writing to hard disk. The 16-bit dual gain channel should be chosen if dynamic
range is more important than having the fastest frame rates. Please refer to Section 2.4 for more detailed
explanationofthedualamplierdynamicrangeoperation.