參數(shù)資料
型號(hào)： AD7714(中文)
廠商： Analog Devices, Inc.
英文描述： Signal Conditioning ADC(信號(hào)調(diào)節(jié)A/D轉(zhuǎn)換器)
中文描述： 信號(hào)調(diào)理模數(shù)轉(zhuǎn)換器（信號(hào)調(diào)節(jié)的A / D轉(zhuǎn)換器）
文件頁(yè)數(shù)： 12/46頁(yè)
文件大?。?/td> 869K
代理商： AD7714(中文)
==99-10-14==
P&S
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==46-12==
P &S
oo á|′μ×ó1é· YóDT1
μ :
ot±±ooêD×μèa· 15o
D :
ooêD70020D
óê±à:
430079
μ°:
( 86) ( 027￡87493500 87493506
′
( 86) ( 027) 87491166, 87493497
P &S
í í :
http://www.p8s.com
Dé±í
Parameter
STATIC PERFORMANCE
No Missing Codes
Y Versions
1
Units
Conditions/Comments
24
22
18
15
12
See Tables I to IV
0.001
See Note 2
0.4
0.1
See Note 2
0.4
0.1
See Note 2
0.4
0.1
See Note 2
0.2
Bits min
Bits min
Bits min
Bits min
Bits min
Guaranteed by Design. 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
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
Bipolar Zero Error
Bipolar Zero Drift
3
V/ C typ
V/ C typ
For Gains of 1, 2, 4
For Gains of 8, 16, 32, 64, 128
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
ppm of FSR/
C typ
% of FSR max
% of FSR max
V/ C typ
V/ C typ
Bipolar Negative Full-Scale Error
2
0.0015
0.003
1
0.6
AV
DD
= 5 V. Typically 0.0004%
AV
= 3 V. Typically 0.0004%
For Gains of 1 to 4
For Gains of 8 to 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
Bipolar Negative Full-Scale Drift
3
ANALOG INPUTS/REFERENCE INPUTS
Input Common-Mode Rejection CMR)
8
Normal-Mode 50 Hz Rejection
8
Normal-Mode 60 Hz Rejection
8
Common-Mode 50 Hz Rejection
8
Common-Mode 60 Hz Rejection
8
Absolute/Common-Mode REF IN Voltage
8
AGND to AV
Absolute/Common-Mode AIN Voltage
8,
9
90
100
100
150
150
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
AGND 30 mV
AV
+ 30 mV
AGND + 50 mV
AV
DD
1.5 V
1
7
0 to +V
/GAIN
11
V
/GAIN
GAIN f
CLK IN
/64
f
CLK IN
/8
BUF Bit of Setup Register = 0
Absolute/Common-Mode AIN Voltage
8, 9
BUF Bit of Setup Register = 1
AIN DC Input Current
8
AIN Sampling Capacitance
8
AIN Differential Voltage Range
10
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 to 4
For Gains of 8 to 128
AIN Input Sampling Rate,
S
Reference nput Range
REF IN(+) REF IN( ) Voltage
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
1/1.75
1/3.5
f
CLK IN
/64
V min/max
V min/max
AV
DD
= 2.7 V to 3.3 V. V
= 1.25 1% for Specified Performance
AV
DD
= 4.75 V to 5.25 V. V
REF
= 2.5 1% for Specified Performance
10
A max
0.8
0.4
2.4
2
V max
V max
V min
V min
DV
DD
= 5 V
DV
DD
= 3 V
DV
DD
= 5 V
DV
DD
= 3 V
DV
DD
= 5 V NOMINAL
V
INH
, Input High Voltage
SCLK & DIN Only (Schmitt Triggered nput)
V
T+
V
T
V
V
SCLK & DIN Only (Schmitt Triggered nput)
V
T+
V
T
V
V
MCLK In Only
V
INL
, Input Low Voltage
V
, Input High Voltage
MCLK In Only
V
INL
, Input Low 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
×￠êí￡o
1.
è· §è￡o
Y
Dí￡o
-40
á
+105
￡
2.
D￡×êμêéê×a￡ê1aDó2 óD±í ￠á￠ùê×aéùμêyá ￡aúù1Dμè′|D￡
×oóó|ó ￡
1.4/3
0.8/1.4
0.4/0.8
V min/V max
V min/V max
V min/V max
DV
DD
= 3 V NOMINAL
1/2.5
0.4/1.1
0.375/0.8
V min/V max
V min/V max
V min/V max
DV
DD
= 5 V NOMINAL
0.8
3.5
V max
V min
DV
DD
= 3 V NOMINAL
0.4
2.5
V max
V min
0.4
0.4
4
V max
V max
V min
I
SINK
= 800 A with DV
DD
= 5 V. Except or MCLK OUT
12
I
SINK
= 100 A with DV
DD
= 3 V. Except or MCLK OUT
12
I
SOURCE
= 200 A with DV
DD
= 5 V. Except or MCLK OUT
12
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