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AD7719 Datasheet(PDF) 12 Page - Analog Devices

Part # AD7719
Description  Low Voltage, Low Power, Factory-Calibrated 16-/24-Bit Dual ADC
PDF  41 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7719 Datasheet(HTML) 12 Page - Analog Devices

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REV. A
AD7719
–11–
Typical Performance Characteristics–
READING NO.
8389600
8389400
8388000
0
1000
100
200
300
8389200
400
500
600
700
800
900
8389000
8388800
8388600
8388400
8388200
AVDD = DVDD = 5V
INPUT RANGE =
20mV
REFIN1(+)–REFIN1(–) = 2.5V
UPDATE RATE = 19.79Hz
MAIN ADC IN BUFFERED MODE
RMS NOISE = 0.58 V rms
TA = 25 C
VREF = 2.5V
TPC 1. Typical Noise Plot on ±20 mV Input Range with
19.79 Hz Update Rate
8
7
0
6
5
4
3
2
1
9
TPC 2. Noise Distribution Histogram
2.5
0
1.0
3.0
2.5
2.0
1.5
3.5
5.0
4.5
4.0
2.0
1.5
1.0
0.5
3.0
VREF (V)
20mV RANGE
2.56V RANGE
AVDD = DVDD = 5V
VREF = 2.5V
INPUT RANGE =
2.56V
UPDATE RATE = 19.79Hz
TA = 25 C
TPC 3. RMS Noise vs. Reference Input
16
040
30
20
10
50
100
90
80
70
60
24
22
20
18
26
UPDATE RATE (Hz)
110
TPC 4. No-Missing-Codes Performance
TEMPERATURE SENSOR ( C)
1400
1200
0
50
30
10
20
40
800
600
400
200
1000
THE AMBIENT
TEMPERATURE VARIES
FROM 25 C TO 30 C
WHILE RECORDING
THE DATA FROM
THE DEVICES.
TPC 5. Temperature Sensor Accuracy
MAIN CAL ACC. @ 4V ( V)
1200
0
20
0
–20
–10
10
800
600
400
200
1000
–30
TPC 6. Full-Scale Error Distribution



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