參數(shù)資料
型號: EVAL-AD7719EB
廠商: Analog Devices, Inc.
英文描述: Connector Backshell
中文描述: 低電壓,低功耗,工廠校準(zhǔn),16-/24-Bit雙ADC
文件頁數(shù): 4/40頁
文件大?。?/td> 367K
代理商: EVAL-AD7719EB
REV. 0
AD7719
–4–
Parameter
AD7719B
Unit
Test Conditions
AUXILIARY CHANNEL (continued)
Offset Error
3
Offset Error Drift vs. Temperature
4
Full-Scale Error
8, 9
Gain Drift vs. Temperature
4
Negative Full-Scale Error
Power Supply Rejection (PSR)
ANALOG INPUTS
Differential Input Voltage Ranges
±
3
±
10
±
0.75
0.5
±
1
70
μ
V typ
nV/
°
C typ
LSB typ
ppm/
°
C typ
LSB typ
dB min
Selected Channel = AIN5/AIN6
AIN
= 1 V Input Range =
±
2.5 V, Typically 80 dB
±
REFIN2
±
REFIN2/2
AGND
30 mV
AV
DD
+ 30 mV
V nom
V nom
V min
V max
ARN = 1
ARN = 0
Unbuffered Input
Absolute AIN Voltage Limits
Analog Input Current
DC Input Current
DC Input Current Drift
Normal-Mode Rejection
2, 6
@ 50 Hz
@ 60 Hz
Common-Mode Rejection
@ DC
@ 50 Hz
2
@ 60 Hz
2
REFERENCE INPUT (REFIN2)
REFIN2 Voltage
REFIN2 Range
2
±
125
±
2
nA/V typ
pA/V/
°
C typ
Input Current Varies with Input Voltage
100
100
dB min
dB min
50 Hz
±
1 Hz, SF = 82
60 Hz
±
1 Hz, SF = 68
85
90
90
dB min
dB min
dB min
Input Range =
±
2.5 V, AIN = 1 V
50 Hz
±
1 Hz, Range = 2.5 V, AIN = 1 V
60 Hz
±
1 Hz, Range = 2.5 V, AIN = 1 V
With Respect to AGND
2.5
1
AV
DD
0.2
0.003
V nom
V min
V max
μ
A/V typ
nA/V/
°
C typ
Reference DC Input Current
2
Reference DC Input Current Drift
EXCITATION CURRENT SOURCES
(IEXC1 and IEXC2)
Output Current
Initial Tolerance at 25
°
C
Drift
Initial Current Matching at 25
°
C
200
±
10
20
±
1
μ
A nom
% typ
ppm/
°
C typ
% typ
Matching between IEXC1 and IEXC2
No Load
Drift Matching
Line Regulation (AV
DD
)
Load Regulation
Output Compliance
1
2.1
300
AVDD
0.6
AGND
30 mV
ppm/
°
C typ
μ
A/V max
nA/V typ
V max
V min
AV
DD
= 5 V
±
5%. Typically 1.25
μ
A/V
LOW-SIDE POWER SWITCHES
(SW1 AND SW2)
R
ON
5
7
20
max
max
mA max
AV
DD
= 5 V. Typically 3
AV
= 3 V. Typically 4.5
Continuous Current per Switch
Allowable Current
2
TEMPERATURE SENSOR
Accuracy
TRANSDUCER BURNOUT
AIN(+) Current
AIN(
) Current
Initial Tolerance @ 25
°
C
Drift
SYSTEM CALIBRATION
10, 2
Full-Scale Calibration Limit
Zero-Scale Calibration Limit
Input Span
See TPC 5
°
C typ
100
+100
±
15
0.03
nA typ
nA typ
% typ
%/
°
C typ
1.05
×
FS
11
1.05
×
FS
0.8
×
FS
2.1
×
FS
V max
V min
V min
V max
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