AD7718 Analog Devices, AD7718 Datasheet - Page 14

• Manufacturer Part Number: AD7718
• Description: 24-Bit, 8/10-Channel, Low Voltage, Low Power, Sigma Delta ADC
• Manufacturer: Analog Devices

Specifications of AD7718

• Resolution (bits): 24bit
• # Chan: 10
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (2Vref/PGA Gain) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: SOIC,SOP

AD7708/AD7718
8388400
8388200
8389600
8389400
8389200
8389000
8388800
8388600
8388000
3.0
2.5
2.0
1.5
1.0
0.5
1
9
8
7
6
5
4
3
2
0
0
1.0
0
AV
V
INPUT RANGE =
UPDATE RATE = 19.79Hz
T
REF
A
RMS NOISE = 0.58 V rms
100
DD
AV
INPUT RANGE =
= 25 C
1.5
= 2.5V
DD
= DV
= DV
200
DD
2.0
DD
= 5V
2.56V RANGE
300
–Typical Performance Characteristics
= 5V
READING NUMBER
2.56V
2.5
20mV
400
V
REF
500
3.0
– V
REFIN1(+)–REFIN1(–) = 2.5V
UPDATE RATE = 19.79Hz
600
3.5
±
20mV RANGE
700
4.0
800
T
V
A
REF
4.5
= 25 C
900
= 2.5V
1000
5.0
32772
32771
32770
32769
32768
32767
32766
32765
32764
700
600
500
400
300
200
100
26
24
22
20
18
16
0
0
0
32766
100
10
20
200
32767
30
300
UPDATE RATE – Hz
40
READING NUMBER
400
32768
AV
INPUT RANGE =
UPDATE RATE = 19.79Hz
50
CODE
DD
500
CHOP = 0
= DV
60
32769
600
DD
70
= 5V
±
700
80
20mV
32770
800
V
T
90
REF
A
= 25 C
900 1000
= 2.5V
100
32771
110