Alta® U4000 Specifications   Printer friendly PDF Alta U4000 Specifications The Alta U4000 and U4000C have a 4-megapixel interline transfer sensor with high quantum efficiency and twice the dynamic range of similar Sony sensors. Low noise and small pixels are ideal for OEM applications, biological sciences, and fundus imaging. The U4000 uses the monochrome Kodak KAI-4022M CCD; the color version uses the KAI-4022MC. 2048 x 2048 array, 7.4 x 7.4 micron pixels 5 MHz 12-bit digitization and 1 MHz 16-bit digitization 32 Mbyte camera memory USB 2.0 interface: no plug in cards or external controllers Programmable, intelligent cooling to 55°C below ambient (D02 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 firmware 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 KAI-4022 Array Size (pixels) 2048 x 2048 Pixel size 7.4 x 7.4 microns Imaging area 15.15 x 15.15 mm (229.7 mm2) Imaging diagonal 21.43 mm Linear Full Well (typ.) 40,000 e- Dynamic Range > 77 dB QE @ 400 nm (U4000) 45% Peak QE (500 nm) (U4000) 55% Anti-blooming (nominal) 300X Camera System Performance Array Size (pixels) 1024 x 256 PC Interface USB 2.0 Max. Cable Length 5 meters between hubs; 5 hubs maximum (max. total of 30m) Digital Resolution 16 bits at 1 MHz and 12 bits at 5 MHz System Noise (typical) <6 e- RMS at 16 bits; 2 counts at 12 bits. Pixel Binning 1x1 to 8 x 2048 on-chip Exposure Time 1.1 msec 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 55°C below ambient temperature 0.02 e-/pixel/sec (-35°C) Dark Current (typical) 0.01 e-/pixel/sec at -25°C Temperature Stability ± 0.1°C Camera Head Size Standard: D2 w/ no shutter. Low profile: D6. Aluminum, hard blue anodized and nickel plated. 6" x 6" x 2.1" (15 x 15 x 6.25 cm). Weight: 3.1 lb. (1.4 kg) Optional High Cooling housing: D09. 7" x 7" x 4.38" (17.8 x 17.8 x 11.1 cm). Weight: 7.2 lb. (3.3 kg) Mounting 2" 24 tpi; 3.5" bolt circle. D06: 1.77" thru; 3.5" B.C. D13: 3" 20 tpi; 5.125" B.C. Optional Nikon or Canon lens mount. Back Focal Distance Standard: 1.025" (2.60cm). Low profile: 0.460" (1.17 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 Standard for all models: No internal shutter. Optional: D02: Melles Griot 43mm. Wide Angle: Melles Griot 63mm. Remote Triggering LVTTL input allows exposure to start within 25 microseconds of rising edge of trigger CCD Sensitivity