Alta U42 Specifications   Printer friendly PDF Alta U42 Specifications The Alta U42 has a back-illuminated full frame 4 megapixel sensor with very high quantum efficiency. Midband, broadband, and UV-enhanced (see the U42-UV data sheet) versions of the CCD are available. Low noise and large field-of-view are ideal for biological science OEMs, astronomy, and spectroscopic imaging. 2048 x 2048 array, 13.5 x 13.5 micron pixels 2 MHz 12-bit and 700 kHz 16-bit digitization 32Mbyte camera memory USB 2.0 interface: no plug in cards or external controllers Programmable, intelligent cooling to 45C below ambient Binning up to 10 Horizontal x 2048 Vertical Subarray readout and fast sequencing modes Precision time delayed integration readout Programmable fan speed for low / zero vibration Two serial port outputs for control of peripheral devices General purpose programmable I/O port External triggering and strobe controls ActiveX drivers and MaxIm DL/CCD software included with every system Field upgradeable firmware Self-test capability with data simulators Fused silica windows Runs from single 12V supply with input voltage monitor Compact enclosure Programmable status indicators MaxIm DL/CCD and CCDSoft software packages are offered at special prices when purchased at the same time as a camera system. CCD Specifications CCD CCD42-40 Array Size (pixels) 2048 x 2048 Pixel size 13.5 x 13.5 microns Imaging area 27.65 x 27.65 mm (764.4 mm2) Imaging diagonal 39.1 mm Linear Full Well (typ.) 100,000 e- Dynamic Range 81.7 dB Camera System Performance PC Interface USB 2.0 Max. cable length 5 meters between hubs; 5 hubs maximum (max. total of 30m) Digital resolution 12 bits at 2 MHz and 16 bits at 700 kHz System Noise (typ.) 2 counts at 2 MHz; 10-12 e- RMS at 700 kHz Pixel Binning 1x1 to 10 x 2048 on-chip Exposure Time 20 milliseconds to 183 minutes (2.56 microsecond increments) Image Sequencing 1-65535 image sequences under software control Frame Sizes Full frame, subframe, focus mode Cooling Thermoelectric cooler with forced air (programmable fan speed). Maximum cooling 40-45° C below ambient temperature Dark Current (nom.) 1 e-/pixel/sec (-25° C) Temperature Stability ±0.1° C Camera Head Size Standard: D2. Low profile: D6. Aluminum, hard blue and black anodized. 6" x 6" x 2.1" (15 x 15 x 6.25 cm). Weight: 3.1 lb. (1.4 kg) Mounting 3.5" bolt circle. 2” 24 tpi thread. Optional Nikon or Canon lens mount. Back focal distance Standard: 1.025” (2.60 cm); Low profile: 0.46” (1.17 cm) [optical] Operating Environment Temperature: -22° to 27°C. Relative humidity 10 to 90% noncondensing Power 40W maximum power with shutter open and cooling maximum. Power supplied by AC/DC “brick” supply with international AC input plug. Alternate 12V input for user’s source. Shutter Standard: Melles Griot 43mm. Low profile: no shutter Remote Triggering LVTTL input to camera allows exposure start within 25 microseconds of rising edge of trigger CCD Sensitivity