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參數資料
| 型號： | 8143 |
| 廠商： | Maxwell Technologies, Inc |
| 英文描述： | 12-Bit Serial Daisy Chain D/A Converter |
| 中文描述： | 12位串行菊花鏈D / A轉換 |
| 文件頁數： | 1/24頁 |
| 文件大?。?/td> | 786K |
| 代理商： | 8143 |
1
M
All data sheets are subject to change without notice
(858) 503-3300- Fax: (858) 503-3301- wwwmaxwell.com
12-Bit Serial Daisy Chain D/A
8143
2003 Maxwell Technologies
All rights reserved.
Converter
07.23.03 REV 3
F
EATURES
:
Mcroprocessor interfacing in serially controlled systems
Buffered digital output pin for daisy-chaining multiple DACs
Mnimzes 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 timng reduces timng design considerations
while mnimzing mcroprocessor wait states.
Improved resistance to ESD
R
AD
-P
AK
radiation-hardened against natural space
radiation
Total dose hardness:
- > 50 Krad (Si), depending upon space mssion
Package:
- 16 pin R
AD
-P
AK
flat pack
Operating temperature: -40 to 85°C
D
ESCRIPTION
:
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 ms-
sion. It was designed for multiple serial DAC systems, where
serially daisy-chaining one DAC after another is greatly simpli-
fied. The 8143 also mnimzes 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 fromthe SRI pin. The
strobe inputs are used to clock in/out data on the rising or fall-
ing (user selected) strobe edges (STB
1
, STB
2
, STB
3
, STB
4
).
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 R
AD
-P
AK
packaging technol-
ogy incorporates radiation shielding in the mcrocircuit pack-
age. It elimnates the need for box shielding while providing
the required radiation shielding for a lifetime in orbit or space
mssion. In a GEO orbit, R
AD
-P
AK
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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