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AD7190 Arkusz danych(PDF) 3 Page - Analog Devices

Numer części AD7190
Szczegółowy opis  4.8 kHz Ultralow Noise 24-Bit Sigma-Delta ADC with PGA
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
Logo AD - Analog Devices

AD7190 Arkusz danych(HTML) 3 Page - Analog Devices

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AD7190
Rev. 0 | Page 3 of 40
SPECIFICATIONS
AVDD = 4.75 V to 5.25 V; DVDD = 2.7 V to 5.25 V; GND = 0 V; REFIN1(+) = AVDD ; REFIN1(−) = GND; MCLK = 4.92 MHz; all
specifications 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.
No Missing Codes2
24
Bits min
FS > 1, sinc4 filter.
24
Bits min
FS > 4, sinc3 filter.
Resolution
See the RMS Noise and
Resolution section
RMS Noise and Output Data Rates
See the RMS Noise and
Resolution section
Integral Nonlinearity
±5
ppm of FSR max
±1 ppm typical, gain = 1.
±15
ppm of FSR max
±5 ppm typical, gain > 1.
Offset Error3
±75/gain
μV typ
Chop disabled.
±0.5
μV typ
Chop enabled.
Offset Error Drift vs. Temperature
±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 Error3, 4
±0.005
% max
±0.001 % typical, gain = 1, AVDD = 5 V.
±0.0075
% typ
Gain > 1, post internal-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.
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, REJ605 = 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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