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 45C below ambient (D07 housing) / 60-65C 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 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 45°C below ambient temperature (60-65°C below ambient with High Cooling D09 housing) Dark Current (typical) 0.4 e-/pixel/sec (-20°C). 0.1 eps for High Cooling D09 housing. Temperature Stability ± 0.1°C Camera Head D07. Low profile: D11. 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 D07 or D09: 2.5" 20 tpi. D11: 2.7" thru. All: 5.125" bolt circle. Optional Nikon F-mount or Canon mount. Back Focal Distance Standard: 1.00" (2.54 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