參數(shù)資料
型號: AD7714(中文)
廠商: Analog Devices, Inc.
英文描述: Signal Conditioning ADC(信號調(diào)節(jié)A/D轉(zhuǎn)換器)
中文描述: 信號調(diào)理模數(shù)轉(zhuǎn)換器(信號調(diào)節(jié)的A / D轉(zhuǎn)換器)
文件頁數(shù): 8/46頁
文件大?。?/td> 869K
代理商: AD7714(中文)
==99-10-14==
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430079
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( 86) ( 027£87493500 87493506
( 86) ( 027) 87491166, 87493497
P &S
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http://www.p8s.com
Parameter
STATIC PERFORMANCE
No Missing Codes
A Versions
1
Units
Conditions/Comments
24
22
18
15
12
See Tables I to IV
0.0015
See Note 2
0.5
0.3
See Note 2
0.5
0.3
See Note 2
0.5
0.3
See Note 2
0.5
0.0015
1
0.6
Bits min
Bits min
Bits min
Bits min
Bits min
Guaranteed by Design. Bipolar Mode. For Filter Notches 60 Hz
For Filter Notch = 100 Hz
For Filter Notch = 250 Hz
For Filter Notch = 500 Hz
For Filter Notch = 1 kHz
Depends on Filter Cutoffs and Selected Gain
Filter Notches 60 Hz
Output Noise
Integral Nonlinearity
Unipolar Offset Error
Unipolar Offset Drift
3
% of FSR max
V/ C typ
V/ C typ
C typ
V/
C typ
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
Bipolar Zero Error
Bipolar Zero Drift
3
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
V/
Positive Full-Scale Error
4
Full-Scale Drift
V/ C typ
V/ C typ
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
Gain Error
6
Gain Drift
3, 7
Bipolar Negative Full-Scale Error
Bipolar Negative Full-Scale Drift
3
ppm of FSR/ C typ
% of FSR max
V/ C typ
V/ C typ
Typically 0.0004%
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
Specifications for AIN and REF IN Unless Noted
At DC. Typically 102 dB
For Filter Notches of 10 Hz, 25 Hz, 50 Hz, 0.02 f
NOTCH
For Filter Notches of 10 Hz, 30 Hz, 60 Hz, 0.02 f
NOTCH
For Filter Notches of 10 Hz, 25 Hz, 50 Hz, 0.02 f
NOTCH
For Filter Notches of 10 Hz, 30 Hz, 60 Hz, 0.02 f
NOTCH
AIN for BUFFER = 0 and REF IN
AIN for BUFFER = 0 and REF IN
ANALOG INPUTS/REFERENCE INPUTS
Input Common-Mode Rejection CMR)
Normal-Mode 50 Hz Rejection
8
Normal-Mode 60 Hz Rejection
8
Common-Mode 50 Hz Rejection
8
Common-Mode 60 Hz Rejection
8
Common-Mode Voltage Range
9
Absolute AIN/REF IN Voltage
9
90
100
100
150
150
AGND to AV
AGND 30 mV
AV
+ 30 mV
AGND + 50 mV
AV
DD
1.5V
1
7
0 to +V
/GAIN
11
V
/GAIN
GAIN f
CLK IN
/64
f
/8
+2.5
f
CLK IN
/64
dB min
dB min
dB min
dB min
dB min
V min to V max
V min
V max
V min
V max
nA max
pF max
nom
nom
Absolute/Common-Mode AIN Voltage
9
BUFFER = 1. A Version
AIN Input Current
8
AIN Sampling Capacitance
8
AIN Differential Voltage Range
10
A Version
Unipolar Input Range B/U Bit of Filter High Register = 1)
Bipolar Input Range B/U Bit of Filter High Register = 0)
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
1% for Specified Performance. Functional with Lower V
REF
AIN Input Sampling Rate,
S
REF IN(+) REF IN( ) Voltage
REF IN Input Sampling Rate,
S
LOGIC INPUTS
Input Current
All Inputs Except MCLK IN
V
INL
, Input Low Voltage
V
INL
, Input Low Voltage
V
INH
, Input High Voltage
V
, Input High Voltage
MCLK IN Only
V
INL
, Input Low Voltage
V
INL
, Input Low Voltage
V
INH
, Input High Voltage
V
INH
, Input High Voltage
LOGIC OUTPUTS (Including MCLK OUT)
V
OL
, Output Low Voltage
V
OL
, Output Low Voltage
V
OH
, Output High Voltage
V
, Output High Voltage
Floating State Leakage Current
Floating State Output Capacitance
13
Data Output Coding
V nom
10
A max
0.8
0.4
2.4
2.0
V max
V max
V min
V min
DV
DD
= +5 V
DV
DD
= +3.3 V
DV
DD
= +5 V
DV
DD
= +3.3 V
0.8
0.4
3.5
2.5
V max
V max
V min
V min
DV
DD
= +5 V
DV
DD
= +3.3 V
DV
DD
= +5 V
DV
DD
= +3.3 V
0.4
0.4
4.0
DV
DD
0.6V
10
9
Binary
Offset Binary
V max
V max
V min
V min
A max
pF typ
I
SINK
= 800 A Except for MCLK OUT.
12
DV
DD
= +5 V
I
SINK
= 100 A Except for MCLK OUT.
12
DV
DD
= +3.3 V
I
SOURCE
= 200 A Except for MCLK OUT.
12
DV
DD
= +5 V
I
SOURCE
= 100 A Except for MCLK OUT.
12
DV
DD
= +3.3 V
Unipolar Mode
Bipolar Mode
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