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PDF 7545A Data sheet ( Hoja de datos )
| Número de pieza | 7545A | |
| Descripción | 12-Bit Buffered Multiplying Digital to Analog Converter | |
| Fabricantes | Maxwell Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 7545A (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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7545A
12-Bit Buffered Multiplying
Digital to Analog Converter
R FB
R
12-BIT MULTIPYING
OUT1
V REF DAC AGND
12
WR
CS
INPUT DATA LATCHES
V DD
DGND
12
DB11-DBO
FEATURES:
• RAD-PAK® patented shielding against natural space radia-
tion
• Total dose hardness:
- > 100 krad (Si), depending upon space mission
• Excellent single event effects
- SELTH: > 120 MeV/mg/cm2
- SEUTH: > 120 MeV/mg/cm2 using all 1’s
• Package:
- 20 pin RAD-PAK® Flat Pack
- 20 pin RAD-PAK® DIP
• Low gain temperature coefficient:
- 5 ppm/°C typ.
• Fast interface timing
• Single +5 V to +15 V supply
DESCRIPTION:
Maxwell Technologies’ 7545A is a 12-bit CMOS-buffered mul-
tiplying DAC with internal data latches, which features a
http://www.DataSheet4U.net/
greater than 100 krad (Si) total dose tolerance, depending
upon space mission. The 7545A features a WR pulse width of
100 ns which allows interfacing to a much wider range of fast
8-bit and 16-bit microprocessors. It is loaded by a single 12-bit
wide word under the control of the CS and WR inputs; tying
these control inputs low makes the input latches transparent
allowing unbuffered operation of the DAC. The 7545A is par-
ticularly suitable for single supply operations and applications
with wide temperature variations.
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 100
krad (Si) radiation dose tolerance. This product is available
with screening up to Class S.
02.05.02 REV 4
(858) 503-3300- Fax: (858) 503-3301- www.maxwell.com
All data sheets are subject to change without notice 1
©2001 Maxwell Technologies
All rights reserved.
datasheet pdf - http://www.DataSheet4U.net/
1 page  
12-Bit Buffered Multiplying
Digital to Analog Converter
FIGURE 1. WRITE CYCLE TIMING DIAGRAM
7545A
FIGURE 2. MODE SELECTION TABLE
MODE SELECTION
WRITE MODE:
CS and WR low, DAC responds to data
bus (DB0 - DB11) inputs
HOLD MODE:
Either CS or WR high, data bus (DB0 -
DB11) is locked out; DAC holds last data
present when WR or CS assumed high
state.
http://www.DataSheet4U.net/
02.05.02 REV 4
All data sheets are subject to change without notice 5
©2001 Maxwell Technologies
All rights reserved.
datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet 7545A.PDF ] | |
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