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arXiv · 0806.0223

High Voltage CMOS Control Interface for Astronomy - Grade Charged Coupled Devices

Elena Martin·Gary Varner·Aaron Koga·Larry Ruckman·Peter Onaka·John Tonry·Aaron Lee
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Abstract

The Pan-STARRS telescope consists of an array of smaller mirrors viewed by a Gigapixel arrays of CCDs. These focal planes employ Orthogonal Transfer CCDs (OTCCDs) to allow on-chip image stabilization. Each OTCCD has advanced logic features that are controlled externally. A CMOS Interface Device for High Voltage has been developed to provide the appropiate voltage signal levels from a readout and control system designated STARGRASP. OTCCD chip output levels range from -3.3V to 16.7V, with two different output drive strenghts required depending on load capacitance (50pF and 1000pF), with 24mA of drive and a rise time on the order of 100ns. Additional testing ADC structures have been included in this chip to evaluate future functional additions for a next version of the chip.

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Elena Martin, Gary Varner, Aaron Koga, Larry Ruckman, Peter Onaka, John Tonry, Aaron Lee. 2008-08-12. High Voltage CMOS Control Interface for Astronomy - Grade Charged Coupled Devices. https://doi.org/10.1088/1748-0221/3/08/p08004

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