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AD7703BR датащи(PDF) 3 Page - Analog Devices

номер детали AD7703BR
подробное описание детали  LC2MOS 20-Bit A/D Converter
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
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AD7703BR датащи(HTML) 3 Page - Analog Devices

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Parameter
A/S Versions
2
B Version
2
C Version
2
Units
Test Conditions/Comments
STATIC PERFORMANCE
DC Power Supply Currents
8
Analog Positive Supply (AIDD)
3.2
3.2
3.2
mA max
Typically 2 mA
Digital Positive Supply (DIDD)
1.5
1.5
1.5
mA max
Typically 1 mA
Analog Negative Supply (AISS)
3.2
3.2
3.2
mA max
Typically 2 mA
Digital Negative Supply (DISS)
0.1
0.1
0.1
mA max
Typically 0.03 mA
Power Supply Rejection
9
Positive Supplies
70
70
70
dB typ
Negative Supplies
75
75
75
dB typ
Power Dissipation
Normal Operation
40
40
40
mW rnax
SLEEP
= Logic 1,
Typically 25 mW
Standby Operations
10
SLEEP
= Logic 0,
A, B, C
20
20
20
µW max
Typically 10
µW
S40
40
40
µW max
NOTES
1The A
IN pin presents a very high impedance dynamic load which varies with clock frequency. A ceramic 1 nF capacitor from the A IN to AGND is necessary. Source
resistance should be 750
Ω or less.
2Temperature Ranges are as follows: A, B, C Versions: –40
°C to +85°C; S Version: –55°C to +125°C.
3Applies after calibration at the temperature of interest. Full-Scale Error applies for both unipolar and bipolar input ranges.
4Total drift over the specified temperature range after calibration at power-up at +25
°C. This is guaranteed by design and/or characterization. Recalibration at any
temperature will remove these errors.
5In unipolar mode the offset can have a negative value (–V
REF) such that the unipolar mode can mimic bipolar mode operation.
6The specifications for input overrange and for input span apply additional constraints on the offset calibration range.
7For unipolar mode, input span is the difference between full scale and zero scale. For bipolar mode, input span is the difference between positive and negative
full-scale points. When using less than the maximum input span, the span range may be placed anywhere within the range of
±(V
REF + 0.1).
8All digital outputs unloaded. All digital inputs at 5 V CMOS levels.
9Applies in 0.1 Hz to 10 Hz bandwidth. PSRR at 60 Hz will exceed 120 dB due to the digital filter.
10CLKIN is stopped. All digital inputs are grounded.
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS*
(TA = +25°C unless otherwise noted)
DVDD to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
DVDD to AVDD . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
DVSS to AGND . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –6 V
AVDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
AVSS to AGND . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –6 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
Digital Input Voltage to DGND . . . . –0.3 V to DVDD + 0.3 V
Analog Input Voltage to AGND . . . . . . . . . . . AVSS – 0.3 V to
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AVDD + 0.3 V
Input Current to Any Pin Except Supplies
1 . . . . . . . .
±10 mA
Operating Temperature Range
Industrial (A, B, C Versions) . . . . . . . . . . . –40
°C to +85°C
Extended (S Version) . . . . . . . . . . . . . . . . –55
°C to +125°C
Storage Temperature Range . . . . . . . . . . . . –65
°C to +150°C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . +300
°C
Power Dissipation (DIP Package) to +75
°C . . . . . . . 450 mW
Derates above +75
°C by . . . . . . . . . . . . . . . . . . . . 10 mW/°C
Power Dissipation (SOIC Package) to +75
°C . . . . . . 250 mW
Derates above +75
°C by . . . . . . . . . . . . . . . . . . . . 15 mW/°C
NOTES
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those listed in the
operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
1Transient currents of up to 100 mA will not cause SCR latch-up.
ORDERING GUIDE
Linearity
Temperature
Error
Package
Model
Range
(% FSR)
Options*
AD7703AN
–40
°C to +85°C
0.003
N-20
AD7703BN
–40
°C to +85°C
0.0015
N-20
AD7703CN
–40
°C to +85°C
0.0012
N-20
AD7703AR
–40
°C to +85°C
0.003
R-20
AD7703BR
–40
°C to +85°C
0.0015
R-20
AD7703CR
–40
°C to +85°C
0.0012
R-20
AD7703AQ
–40
°C to +85°C
0.003
Q-20
AD7703BQ
–40
°C to +85°C
0.0015
Q-20
AD7703CQ
–40
°C to +85°C
0.0012
Q-20
AD7703SQ
–55
°C to +125°C
0.003
Q-20
*N = Plastic DIP; R = SOIC; Q = Cerdip.
WARNING!
ESD SENSITIVE DEVICE
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although this device features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
–3–
AD7703
REV. D


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