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Maxwell Technologies - 16-Bit Latchup Protected Analog to Digital Converter

Numéro de référence 7809LP
Description 16-Bit Latchup Protected Analog to Digital Converter
Fabricant Maxwell Technologies 
Logo Maxwell Technologies 





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7809LP fiche technique
7809LP
16-Bit Latchup Protected
Analog to Digital Converter
20 k
R1IN
10 k
R2IN
5 k
R3IN
20 k
CAP
REF
R/C
Buffer
CS POWER DOWN
Successive Approximation Register and Control Logic
CDAC
Clock
Comparator
Serial Data
Out
BUSY
Data
Clock
Serial
Data
Internal
+2.5V Ref.
4 k
Logic Diagram
FEATURES:
• RAD-PAK® radiation-hardened against natural
• space radiation
• Total dose hardness:
- > 100 krad (Si), depending upon space mission
• Latch-up Protection Technology (LPTTM)
• SEL converted into a reset
- Rate based on cross section and mission
• Same footprint as ADS7809
• Package: 24 pin RAD-PAK flat package
• 100 kHz min sampling rate
• ±10 V and 0 V to 5 V input range
• DNL: 15-bits “No Missing Codes”
• 83 dB min SINAD with 20 kHz input
• Single +5 V supply operation
• Utilizes internal or external reference
• Serial output
• Power dissipation: 132 mW max
DESCRIPTION:
Maxwell Technologies’ 7809LP high-speed 16-bit analog to
digital converter features a greater than 100 kilorad (Si) total
dose tolerance depending upon space mission. Using Max-
well’s radiation-hardened RAD-PAK® packaging technology, the
7809LP has the same footprint as ADS7809 and is latchup
protected by Maxwell Technologies’ Latchup Protection Tech-
nology (LPTTM). It is a 24 pin, 16-bit sampling analog-to-digital
converter using state-of-the-art CMOS structures. The
7809LP contains a 16-bit capacitor based SAR A/D with S/H,
reference, clock, interface for microprocessor use, and serial
output drivers. The 7809LP is specified at a 100kHz sampling
rate, and guaranteed over the full temperature range. Laser-
trimmed scaling resistors provide various input ranges include
±10 V and 0 to 5 V, while the innovative design allows opera-
tion from a single +5 V supply, with power dissipation of under
132 mW.
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 Maxwell Technologies self-defined Class
K.
01.11.05 Rev 7
(858) 503-3300- Fax: (858) 503-3301 - www.maxwell.com
All data sheets are subject to change without notice 1
©2005 Maxwell Technologies
All rights reserved.

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