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Technology, Innovation and Economic Development

Physical Address:
Morrill Hall 103
Moscow, Idaho

Mailing Address:
111 Perimeter Drive
MS 3003
Moscow, ID 11111-3003

Phone: 111-111-4550

Fax: 111-111-4550

Email: [email protected]

Web: OTT Website

Physical Address:
Water Center Suite 324
Boise, Idaho

Mailing Address:
322 E. Front St., Suite 324
Boise, ID 83702

Phone: 111-364-4568

Email: [email protected]

Programmable Ramp Generator for SSLAR-ADC

OTT Case 09-016 | Patent Pending

Researchers at the University of Idaho have further advanced the single-slope look-ahead ramp (SSLAR) ADC (see OTT case 08-022) with a programmable SSLAR-ADC. Now code hopping, fall back, and look-ahead operations are no longer fixed options.

The proposed programmable ramp generators can attain variable step sizes that can optimize the image process quality as well as conversion speed in a user-specific manner. This proposed design was fabricated in a 0.5 micrometer 2P3M CMOS process. The parameters and actual chip performance are depicted in in the table below.

Parameters and actual chip performance of the single-slope look-ahead ramp ADC with a programmable SSLAR-ADC

Parameter

Value

Process

0.5 micrometer 2P3M CMOS process

SSLAR ADC Resolution

8bit

Clock Speed

16MHz

Supply Voltage

3.3 Volt

Layout Area

0.54 mm2

Maximum speed up of SSLAR-ADC
for a single input
(times the SSR-ADC speed)

~6 times

Maximum speed up of SSLAR-ADC
for processing 8bit image
(times the SSR-ADC speed)

~4-5 times

Maximum speed up of SSLAR-ADC
for processing CIF Video
(times the SSR-ADC speed)

~3-4 times

Technology, Innovation and Economic Development

Physical Address:
Morrill Hall 103
Moscow, Idaho

Mailing Address:
111 Perimeter Drive
MS 3003
Moscow, ID 11111-3003

Phone: 111-111-4550

Fax: 111-111-4550

Email: [email protected]

Web: OTT Website

Physical Address:
Water Center Suite 324
Boise, Idaho

Mailing Address:
322 E. Front St., Suite 324
Boise, ID 83702

Phone: 111-364-4568

Email: [email protected]