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PDF 7805ALP Data sheet ( Hoja de datos )

Número de pieza 7805ALP
Descripción 16-Bit Latchup Protected ADC
Fabricantes Maxwell Technologies 
Logotipo Maxwell Technologies Logotipo



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7805ALP
16-Bit Latchup Protected ADC
Logic Diagram
FEATURES:
• 16-bit organization
• Latchup Protection Technology™
• RAD-PAK® radiation-hardened against natural space radia-
tion
• Total dose hardness:
- > 50 krads(Si), depending upon space mission
• Latchup converted to reset.
- Rate based on cross section and mission.
• Package:
- 28 pin RAD-PAK® flat pack
- 28 pin RAD-PAK® DIP
• 100 kHz min sampling rate
• Standard ± 10V input range
• Advance CMOS technology
- 86 dB min SINAD with 20 kHz input
- Single 5V supply operation
- Utilizes internal or external reference
- Full parallel data output
- Power dissipation: 132 mW max
DESCRIPTION:
Maxwell Technologies’ 7805ALP high-speed analog-to-digital
converter features a greater than 50 krad (Si) total dose toler-
ance, depending upon space mission. Using Mawell’s radia-
tion-hardened RAD-PAK® packaging technology, the 7805ALP
incorporates the commercial ADS7805 from Burr Brown. This
device is latchup protected by Maxwell Technologies’ LPT™
technology. The 7805ALP, 16-bit sampling CMOS A/D . The
device contains a complete 16-bit capacitor-based SAR A/D
with S/H, reference, clock, interface for microprocessor use,
and three-state output drivers. The 7805ALP is specified at a
100 kHz sampling rate, and guaranteed over the full tempera-
ture range. Laser-trimmed scaling resistors provide an indus-
try-standard ± 10V input range, while the innovative design
allows operation from a single 5V supply, with power dissipa-
tion 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-defiened
Class K.
01.10.05 Rev 9
(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.
Datasheet pdf - http://www.DataSheet4U.net/

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7805ALP pdf
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16-Bit Latchup Protected ADC
7805ALP
PARAMETER
Aperture Delay
Transient Response
Overvoltage Recovery 1
TABLE 8. 7805ALP SAMPLING DYNAMICS
(VS = 5V, TA = -40 TO +85°C UNLESS OTHERWISE SPECIFIED)
TEST CONDITIONS
SUBGROUPS
MIN
TYP
MAX UNIT
9, 10, 11
--
40
--
nS
FS Step
9, 10, 11
--
2
-- µ S
9, 10, 11
--
150
--
nS
1. Recovers to specified performance after 2 x fS input overvoltage.
TABLE 9. 7805ALP REFERENCE
PARAMETER
T 10.ABLE
(VS = 5V, TA = -40 TO +85°C UNLESS OTHERWISE SPECIFIED)
SUBGROUPS
MIN
TYP
Internal Reference Voltage
Internal Reference Source Current (Must use external buffer)
Internal Reference Drift
External Reference Voltage Range for Specified Linearity 1
External Reference Current Drain 2
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
--
2.48
--
--
--
--
2.5
1
8
2.5
--
1. Tested by application of signal.
2. Guaranteed by design
MAX UNIT
2.52 V
-- µ A
-- ppm/°C
-- V
100 µ A
PARAMETER
Data Formatting
Data Coding
VOL
VOH
Leakage Current
Output Capacitance1
1. Guarenteed by design
TABLE 11. 7805ALP DIGITAL OUTPUTS
(VS = 5V, TA = -40 TO +85°C UNLESS OTHERWISE SPECIFIED)
TEST CONDITIONS
SUBGROUPS
MIN
TYP
MAX UNIT
(Parallel 16-bits Binary Two’s Complement)
Binary Two’s Complement
(ISINK = 1.6mA) 4.0
1, 2, 3 -- -- 0.4 V
(ISOURCE = -400 µ A)
1, 2, 3 4.0 -- -- V
High-Z State, VOUT = 0V
1, 2, 3
--
-- ±5 µ A
to VS
High-Z State
-- -- 10 -- pF
01.10.05 Rev 9
All data sheets are subject to change without notice 5
©2005 Maxwell Technologies
All rights reserved.
Datasheet pdf - http://www.DataSheet4U.net/

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7805ALP arduino
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16-Bit Latchup Protected ADC
FIGURE 4. TYPICAL 7805A APPLICATION CIRCUIT
7805ALP
FIGURE 5. TYPICAL 7805A CIRCUIT WITH 16-BIT BUS INTERFACE
01.10.05 Rev 9
All data sheets are subject to change without notice 11
©2005 Maxwell Technologies
All rights reserved.
Datasheet pdf - http://www.DataSheet4U.net/

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