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To digitize the analog signals from the near-IR detectors, Webb is employing a low-noise, cryogenic application-specific integrated circuit (ASIC). This ASIC advances the state of art for such devices by delivering a micro-processor with extremely low power dissipation and a 16 bit analog-to-digital converter with noise comparable to conventional warm electronics.
In 2006, the noise, power dissipation, and environmental tolerance of the ASIC was demonstrated. |
