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7809LP 데이터시트 PDF




Maxwell Technologies에서 제조한 전자 부품 7809LP은 전자 산업 및 응용 분야에서
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부품번호 7809LP 기능
기능 16-Bit Latchup Protected Analog to Digital Converter
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7809LP 데이터시트, 핀배열, 회로
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.




7809LP pdf, 반도체, 판매, 대치품
16-Bit Latchup Protected Analog to Digital Converter 7809LP
TABLE 3. 7809LP DC ACCURACY SPECIFICATIONS
(SPECIFIED PERFORMANCE -40 TO +85°C)
PARAMETER
MIN TYP MAX UNIT
Full Scale Error Drift (using ext. 2.5000 Vref)
Bipolar Zero Error 4
-- ±2 -- ppm/°C
-- -- ±10 mV
Bipolar Zero Error Drift
-- ±2 -- ppm/°C
Unipolar Zero Error 4
-40 to 85°C
Unipolar Zero Error Drift
-- -- ±3 mV
-- -- ±16 mV
-- ±2 -- ppm/°C
Recovery to Rated Accuracy after Power Down (1 uF Capacitor to
--
1
-- ms
CAP)
Power Supply Sensitivity (VDIG = VANA = VD) 4.75 V > VD < 5.2 V
-40 to 85°C
--
--
-- ±8 LSB
-- ±32 LSB
1. LSB stands for Least Significant Bit. One LSB is equal to 305 µ V.
2. Not tested.
3. Typical rms noise at worst case transitions and temperatures.
4. Measured with various fixed resistors.
5. For bipolar input ranges, full scale error is the worst case of -Full Scale or +Full Scale untrimmed deviation from ideal first and
last scale code transitions, divided by the transition voltage (not divided by the full-scale range) and includes the effect of offset
error. For unipolar input ranges, full scale error is the deviation of the last code transition divided by the transition voltage. It
also includes the effect of offset error.
PARAMETER
VIL
VIH
IIL, IIH
PARAMETER
ICC
TABLE 4. DELTA LIMITS
VARIATION
+/- 10%
TABLE 5. 7809LP DIGITAL INPUTS
(SPECIFIED PERFORMANCE -40 TO +85°C)
SUBGROUPS
MIN
1, 2, 3
-0.3
2.0
--
TYP
--
--
--
MAX
0.8
VD + 0.3
± 10
UNIT
V
V
µA
01.11.05 Rev 7
All data sheets are subject to change without notice 4
©2005 Maxwell Technologies
All rights reserved.

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7809LP 전자부품, 판매, 대치품
16-Bit Latchup Protected Analog to Digital Converter 7809LP
TABLE 12. 7809LP CONTROL LINE FUNCTIONS FOR READ AND CONVERT
SPECIFIC FUNCTION
CS
R/C
BUSY
EXT/INT
DATACL
K
PWRD
SB/BTC OPERATION
Initiate Conver-
sion and Output
Data using Inter-
nal Clock
1>0
0
0
1>0
1
1
0 Output 0
0 Output 0
Initiate Conver-
sion and Output
Data using Exter-
nal Clock
1>0
0
1>0
0
1>0
1
1
1
1
1 Input 0
1 Input 0
1 Input x
1 > 0 1 0 1 Input 0
0 0>1 0
1 Input 0
Incorrect Conver- 0 0 0 > 1 x x 0
sions
Power Down
xxxxx0
xxxxx1
x Initiates conversion “n”.
Data from conversion “n-
1” clocked out on DATA
synchronized to 16 clock
x pulses output on DATA-
CLK
Initiates conversion “n”.
Data from conversion “n-
1” clocked out on DATA
synchronized to 16 clock
pulses output on DATA-
CLK
x Initiates conversion “n”
x Initiates conversion “n”
x Outputs a pulse on SYNC
followed by data from con-
version “n” clocked out
synchronized to external
x DATACLK.
Outputs a pules on SYNC
followed by data from con-
version “n-1” clocked out
synchronized to external
x DATACLK 1. Conversion
“n” in process.
Outputs a pulse on SYNC
followed by data from con-
version “n-1” clocked out
synchronized to external
DATACLK 1. Conversion
“n” in process.
x CS or R/C must be HIGH
or a new conversion will
be initiated without time
for acquisition
x Analog circuitry powered.
Conversion will be initi-
ated without time for
x acquisition
Analog circuitry disabled.
Data from previous con-
version maintained in out-
put registers
01.11.05 Rev 7
All data sheets are subject to change without notice 7
©2005 Maxwell Technologies
All rights reserved.

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부품번호상세설명 및 기능제조사
7809LP

16-Bit Latchup Protected Analog to Digital Converter

Maxwell Technologies
Maxwell Technologies

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