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AD7190WBRUZ Datasheet(PDF) 4 Page - Analog Devices

Part # AD7190WBRUZ
Description  4.8 kHz Ultralow Noise 24-Bit Sigma-Delta ADC
Download  41 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7190WBRUZ Datasheet(HTML) 4 Page - Analog Devices

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Data Sheet
AD7190
Rev. C | Page 3 of 40
SPECIFICATIONS
AVDD = 4.75 V to 5.25 V, DVDD = 2.7 V to 5.25 V, AGND = DGND = 0 V, REFINx(+) = AVDD , REFINx(−) = AGND, MCLK = 4.92 MHz,
TA = TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
AD7190B
Unit
Test Conditions/Comments1
ADC
Output Data Rate
4.7 to 4800
Hz nom
Chop disabled.
1.17 to 1200
Hz nom
Chop enabled, sinc4 filter.
1.56 to 1600
Hz nom
Chop enabled, sinc3 filter.
No Missing Codes2
24
Bits min
FS > 1, sinc4 filter3.
24
Bits min
FS > 4, sinc3 filter3.
Resolution
See the RMS Noise and
Resolution section
RMS Noise and Output Data Rates
See the RMS Noise and
Resolution section
Integral Nonlinearity
B Grade
±5
ppm of FSR max
±1 ppm typical, gain = 1.
±15
ppm of FSR max
±5 ppm typical, gain > 1.
WB Grade
±7
ppm of FSR max
±1 ppm typical, gain = 1.
±30
ppm of FSR max
±5 ppm typical, gain > 1.
Offset Error4, 5
±75/gain
μV typ
Chop disabled.
±0.5
μV typ
Chop enabled.
Offset Error Drift vs. Temperature5
±100/gain
nV/°C typ
Gain = 1 to 16. chop disabled.
±5
nV/°C typ
Gain = 32 to 128. chop disabled.
±5
nV/°C typ
Chop enabled.
Offset Error Drift vs. Time
25
nV/1000 hours typ
Gain ≥ 32.
Gain Error4
B Grade
±0.005
% max
±0.001 % typical, gain = 1, TA = 25°C,
AVDD = 5 V6.
WB Grade
±0.0075
% max
±0.001 % typical, gain = 1, TA = 25°C,
AVDD = 5 V6.
±0.0075
% typ
Gain > 1, post internal full-scale calibration.
Gain Drift vs. Temperature
±1
ppm/°C typ
Gain Drift vs. Time
10
ppm/1000 hours typ
Gain = 1.
Power Supply Rejection
95
dB typ
Gain = 1, VIN = 1 V.
B Grade
100
dB min
Gain > 1, VIN = 1 V/gain. 110 dB typical.
WB Grade
95
dB min
Gain > 1, VIN = 1 V/gain. 110 dB typical.
Common-Mode Rejection
@ DC
100
dB min
Gain = 1, VIN = 1 V2.
110
dB min
Gain > 1, VIN = 1 V/gain.
@ 50 Hz, 60 Hz2
120
dB min
10 Hz output data rate, 50 ± 1 Hz, 60 ± 1 Hz.
@ 50 Hz, 60 Hz2
120
dB min
50 ± 1 Hz (50 Hz output data rate), 60 ± 1 Hz
(60 Hz output data rate).
Normal Mode Rejection2
Sinc4 Filter
Internal Clock
@ 50 Hz, 60 Hz
100
dB min
10 Hz output data rate, 50 ± 1 Hz, 60 ± 1 Hz.
74
dB min
50 Hz output data rate, REJ607 = 1,
50 ± 1 Hz, 60 ± 1 Hz.
@ 50 Hz
96
dB min
50 Hz output data rate, 50 ± 1 Hz.
@ 60 Hz
97
dB min
60 Hz output data rate, 60 ± 1 Hz.


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