Alta U230 Specifications   Printer friendly PDF Alta U230 Specifications The Alta U230 uses a very large format 4-megapixel back-illuminated sensor, ideal for applications requiring large field of view, such as sky surveys and radiology. 2048 x 2048 array, 15 x 15 micron pixels 16-bit digitization at 700 kHz; 12 bits at 2 MHz 32 Mbyte camera memory USB 2.0 interface: no plug in cards or external controllers Programmable, intelligent cooling to 40°C below ambient (D07 housing) / 60°C below ambient (D09 housing) Binning up to 8 Horizontal x 2048 Vertical Subarray readout and fast sequencing modes 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 fi rmware 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 e2v CCD230-42 Array Size (pixels) 2048 x 2048 Pixel Size 15 x 15 microns Imaging Area 30.7 x 30.7 mm (944 mm2) Imaging Diagonal 43.4 mm Video Imager Size 2.7" Linear Full Well (typical) 150K electrons Dynamic Range 85 dB QE at 400 nm 55% Peak QE (720 nm) 96% Camera System Performance PC Interface USB 2.0 Max. Cable Length 5 meters between hubs; 5 hubs maximum (max. total of 30m) Digital Resolution 16 bits at 700 kHz; 12 bits at 2 MHz. System Noise (typical) 12 e- RMS (preliminary) Pixel Binning 1x1 to 8 x 2048 on-chip Exposure Time 30 milliseconds to 183 minutes (2.56 microsecond increments) Image Sequencing 1 to 65535 image sequences under software control Frame Sizes Full frame, subframe, focus mode Cooling (typical) Thermoelectric cooler with forced air. Maximum cooling 40°C below ambient temperature (60°C below ambient with High Cooling D09 housing) Dark Current (typical) 0.4 e-/pixel/sec (-20°C). 0.04 eps for High Cooling D09 housing. Temperature Stability ± 0.1°C Camera Head D07. Aluminum, hard blue anodized. 7" x 7" x 2.55" (17.8 x 17.8 x 6.48 cm) Optional High Cooling housing: D09. 7" x 7" x 3.25" (17.8 x 17.8 x 8.9 cm) Weight: 4.2 lb. (1.9 kg) Mounting 5,125" bolt circle. Optional Nikon F-mount or Canon FD mount. Back Focal Distance 1.025" (2.60cm). Optional low profile housing D11 (no shutter): 0.61" ( 1.56 cm) Optional D09: 1.40" (3.56 cm) [optical] Operating Environment -22° to 27°C. Relative humidity: 10 to 90% non-condensing. Cable Length Standard: 15 ft (4.5m) Power 40W maximum power with shutter open and cooling maximum. AC/DC "brick" supply with int'l AC input plug (100-240V, 50-60 Hz). Alternate 12V input from user's source. Shutter Melles Griot 63mm (D07 and D09). D11 Low profile: no shutter. Remote Triggering LVTTL input allows exposure to start within 25 microseconds of rising edge of trigger CCD Sensitivity