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8143RPFB Datasheet(PDF) 1 Page - Maxwell Technologies |
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8143RPFB Datasheet(HTML) 1 Page - Maxwell Technologies |
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1 / 24 page  1 All data sheets are subject to change without notice (858) 503-3300- Fax: (858) 503-3301- www.maxwell.com 12-Bit Serial Daisy Chain D/A 8143 ©2003 Maxwell Technologies All rights reserved. Converter 07.23.03 REV 3 FEATURES: • Microprocessor interfacing in serially controlled systems • Buffered digital output pin for daisy-chaining multiple DACs • Minimizes address-decoding in multiple DAC systems - three wire interface for any number of DACs - One data line - One CLK line - One load line • Fast interface timing reduces timing design considerations while minimizing microprocessor wait states. • Improved resistance to ESD •RAD-PAK® radiation-hardened against natural space radiation • Total dose hardness: - > 50 Krad (Si), depending upon space mission • Package: - 16 pin RAD-PAK® flat pack • Operating temperature: -40 to 85°C DESCRIPTION: Maxwell Technologies’ 8143 is a 12-bit serial-input daisy-chain CMOS digital-to-analog converter (DAC) that features serial data input and buffered serial data output and a greater than 50 krad (Si) total dose tolerance, dependent upon space mis- sion. It was designed for multiple serial DAC systems, where serially daisy-chaining one DAC after another is greatly simpli- fied. The 8143 also minimizes address decoding lines enabling simpler logic interfacing. It allows three-wire interface for any number of DACs: one data line, one CLK line and one load line. Serial data in the input register (MSB first) is sequentially clocked out to the SRO pin as the new data word (MSB first) is simultaneously clocked in from the SRI pin. The strobe inputs are used to clock in/out data on the rising or fall- ing (user selected) strobe edges (STB 1, STB2, STB3, STB4). When the shift register’s data has been updated, the new data word is transferred to the DAC register with use of LO1 and LD2 inputs. Maxwell Technologies' patented RAD-PAK® packaging technol- ogy incorporates radiation shielding in the microcircuit pack- age. It eliminates the need for box shielding while providing the required radiation shielding for a lifetime in orbit or space mission. In a GEO orbit, RAD-PAK provides greater than 50 krad (Si) radiation dose tolerance. This product is available with screening up to Class S. Logic Diagram |
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