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AD5421BREZ-REEL Datasheet(Fiches technique) 4 Page - Analog Devices

Numéro de pièce AD5421BREZ-REEL
Description  16-Bit, Serial Input, Loop-Powered, 4 mA to 20 mA DAC
Télécharger  36 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
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AD5421
Data Sheet
Rev. F | Page 4 of 36
SPECIFICATIONS
Loop voltage = 24 V; REFIN = 2.5 V external; RL = 250 Ω; external NMOS connected; all loop current ranges; all specifications
TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter1
Min
Typ
Max
Unit
Test Conditions/Comments
ACCURACY, INTERNAL RSET
Resolution
16
Bits
Total Unadjusted Error (TUE)2
−0.126
+0.126
% FSR
C grade
−0.041
±0.0064
+0.041
% FSR
C grade, TA = 25°C
−0.18
+0.18
% FSR
B grade
−0.06
±0.011
+0.06
% FSR
B grade, TA = 25°C
−0.27
+0.27
% FSR
A grade
−0.08
±0.011
+0.08
A grade, TA = 25°C
TUE Long-Term Stability
210
ppm FSR
Drift after 1000 hours at TA = 125°C
Relative Accuracy (INL)
−0.0035
±0.0015
+0.0035
% FSR
C grade
−0.012
±0.006
+0.012
% FSR
B grade
−0.024
±0.01
+0.024
% FSR
A grade
Differential Nonlinearity (DNL)
−1
+1
LSB
Guaranteed monotonic
Offset Error
−0.056
+0.056
% FSR
B grade and C grade
−0.008
±0.0008
+0.008
% FSR
B grade and C grade, TA = 25°C
−0.11
±0.0008
+0.11
% FSR
A grade
Offset Error TC3
1
ppm FSR/°C
Gain Error
−0.107
+0.107
% FSR
B grade and C grade
−0.035
±0.0058
+0.035
% FSR
B grade and C grade, TA = 25°C
−0.2
±0.0058
+0.2
% FSR
A grade
Gain Error TC3
4
ppm FSR/°C
Full-Scale Error
−0.126
+0.126
% FSR
B grade and C grade
−0.041
±0.0065
+0.041
% FSR
B grade and C grade, TA = 25°C
−0.25
±0.0065
+0.25
% FSR
A grade
Full-Scale Error TC3
5
ppm FSR/°C
Downscale Alarm Current
3.19
3.21
mA
Upscale Alarm Current
22.77
22.83
mA
4 mA to 20 mA and 3.8 mA to 21 mA
ranges
23.97
24.03
mA
3.2 mA to 24 mA range
ACCURACY, EXTERNAL RSET (24 kΩ)
Assumes ideal resistor, B grade and
C grade only; not specified for A grade
Resolution
16
Bits
Total Unadjusted Error (TUE)2
−0.048
+0.048
% FSR
C grade
−0.027
±0.002
+0.027
% FSR
C grade, TA = 25°C
−0.08
+0.08
% FSR
B grade
−0.04
±0.003
+0.04
% FSR
B grade, TA = 25°C
TUE Long-Term Stability
40
ppm FSR
Drift after 1000 hours at TA = 125°C
Relative Accuracy (INL)
−0.0035
±0.0015
+0.0035
% FSR
C grade
−0.012
±0.006
+0.012
% FSR
B grade
Differential Nonlinearity (DNL)
−1
+1
LSB
Guaranteed monotonic
Offset Error
−0.021
+0.021
% FSR
−0.007
±0.0012
+0.007
% FSR
TA = 25°C
Offset Error TC3
0.5
ppm FSR/°C
Gain Error
−0.03
+0.03
% FSR
−0.023
±0.0006
+0.023
% FSR
TA = 25°C




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