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Design and evaluation of an optically triggered monolithic sample and hold circuit using GaAs MESFET technology

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2 Author(s)
R. Mason ; Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK ; J. Taylor

The design and evaluation of an optically triggered, fully integrated sample and hold circuit (OS/H) is described. Measured results are presented that demonstrate operation of this circuit at 250 Ms/s and with effective resolution approaching 8 bits. The integrated circuit, which measures 2.1 mm×1.4 mm, is realized in -1.0-V threshold, 20-GHz ft GaAs MESFET technology, consumes approximately 200 mW of power, and requires one optical address. The OS/H will find applications in high precision, hybrid, and integrated signal processing systems where high speed, high levels of parallelism, and low timing jitter are important. Measured results of a series photoconducting (Auston switch) OS/H realized in the same technology are presented for comparison purposes

Published in:

Journal of Lightwave Technology  (Volume:13 ,  Issue: 3 )