12-Bit Serial Daisy-Chain DAC is radiation tolerant.
Press Release Summary:
CMOS 8143RP features serial data input, buffered serial data output and greater than 50 krad (Si) total dose tolerance. Designed for multiple serial DAC systems, unit minimizes address decoding lines and allows 3-wire interface for various DACs; one data, one CLK and one load line. LOAD control inputs allow simultaneous output updating of multiple DACs and asynchronous CLEAR input resets DAC register without altering input register data.
Original Press Release:
Maxwell Technologies Introduces 12-Bit Radiation Tolerant Serial Daisy Chain Digital-To-Analog Converter
* Microprocessor Interfacing in Serially Controlled Systems
* Buffered Digital Output Pin for Daisy -Chaining Multiple DACs
* Fast Interface Timing
* Improved Resistance to ESD
* 50 krad Total Dose Tolerance
* 16-Pin Flat Pak
* Differential Nonlinearity ± 1 LSB Over Full Temperature Range
San Diego, CA - Maxwell Technologies, Inc. introduces the 8143RP, a 12-bit serial-input daisy-chain CMOS Digital-to-Analog Converter (DAC) that features serial data input, buffered serial data output and a greater than 50 krad (Si) total dose tolerance, depending on the space mission in which it is used. The product was designed for multiple serial DAC systems, where serially daisy-chaining one DAC after another is greatly simplified. The 8143RP also minimizes address decoding lines, enabling more simple logic interfacing, and allows a three-wire interface for any number of DACs: one data line, one CLK line, and one load line.
The 8143RP utilizes Maxwell Technologies' patented RAD-PAK® packaging technology, which incorporates radiation shielding in the microcircuit package, eliminating the need for box shielding, while providing the required radiation shielding for a lifetime in orbit. In a GEO orbit, RAD-PAK provides greater than 50 krad (Si) radiation dose tolerance. The 8143RP is available with screening up to Class S.
"Our RAD-PAK® packaging technology makes this product ideally suited for space missions," said Larry Longden, Director of Product Development for Maxwell. "The improved linearity also ensures that data integrity is maintained, while fast interface timing reduces timing design considerations while minimizing microprocessor wait states."
In the 8143RP, separate LOAD control inputs allow simultaneous output updating of multiple DACs, and an asynchronous CLEAR input resets the DAC register without altering data in the input register. Improved linearity and gain error performance permits reduced circuit part count through the elimination of trimming components.
