Pipe-lined CCD analog-to-digital converter

Details Pipe-lined CCD analog-to-digital converter Pipe-lined CCD analog-to-digital converter

Filed on

1982-03-03

Date issued

1984-09-11

Examiner

Miller, C. D.

Patent Class

Communications: electrical

SubClass

Audible indication

SubSubClass

Percussion-type sound producer

Other Related Categories

340347SH, 357 24, H03K 1302

Type

Patent

Status

active

Patent number

044713410

Description

ABSTRACT:
An analog-to-digital converter (ADC) uses pipe-lined data flow through parallelled charge transfer channels in a CCD for implementing a successive-approximation conversion algorithm. Successive charge splitting divides a standard level charge packet into binary-weighted charge packets, selectively added to develop the successive approximations against which charge packets dependent on analog input signal are differentially compared. These comparisons are made using floating gate sensors and auto-zeroed sense amplifiers. A battery of progressively shorter shift registers can convert the pipelined ADC output to parallel-bit form.

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patent: 4375059 (1983-02-01), Schlig
Kyung, "IEEE Journal of Solid-State Circuits", vol. SC-15, No. 2, Apr. 1980, pp. 255-257.
"Digitals in Broadcasting", Howard E. Ennes, pp. 162-191, Howard W. Sams, 1977.
"Design of a Circulating-Type Analogue-Digital Converter Using Bucket Brigade Delay Lines", Electronics Letters, 6 Sep. 1973, vol. 9, No. 18, pp. 428-430.
"A Monolithic (Single-Chip) Video A/D converter", W. R. Bucklen, SMPTE Journal, Aug. 1980, vol. 89, pp. 573-578.
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