AD7708 Analog Devices, AD7708 Datasheet - Page 18

• Manufacturer Part Number: AD7708
• Description: 16-Bit 8/10-Channel, Low Voltage, Low Power, Sigma Delta ADC
• Manufacturer: Analog Devices

Specifications of AD7708

• Resolution (bits): 16bit
• # 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

SF
Word
13
23
27
69
255
SF
Word
13
23
27
69
255
SF
Word
13
23
27
69
255
SF
Word
13
23
27
69
255
AD7708/AD7718
Table II. Typical Output RMS Noise vs. Input Range and Update Rate for AD7718 with Chop Enabled (CHOP = 0);
Output RMS Noise in V
Table III. Peak-to-Peak Resolution vs. Input Range and Update Rate for AD7718 with Chop Enabled (CHOP = 0);
Peak-to-Peak Resolution in Bits
Table IV. Typical Output RMS Noise vs. Input Range and Update Rate for AD7708 with Chop Enabled (CHOP = 0);
Output RMS Noise in V
Table V. Peak-to-Peak Resolution vs. Input Range and Update Rate for AD7708 with Chop Enabled (CHOP = 0);
Peak-to-Peak Resolution in Bits
Data Update
Rate (Hz)
105.3
59.36
50.56
19.79
5.35
Data Update
Rate (Hz)
105.3
59.36
50.56
19.79
5.35
Data Update
Rate (Hz)
105.3
59.36
50.56
19.79
5.35
Data Update
Rate (Hz)
105.3
59.35
50.56
19.79
5.35
1.50
1.0
0.95
0.60
0.35
12
12.5
12.5
13
14
1.50
1.0
0.95
0.60
0.35
12
12.5
12.5
13
14
20 mV
20 mV
20 mV
20 mV
1.50
1.02
0.95
0.65
0.35
13
13.5
13.5
14
15
1.50
1.02
0.95
0.65
0.35
13
13.5
13.5
14
15
40 mV
40 mV
40 mV
40 mV
1.60
1.06
0.98
0.65
0.37
14
14.5
14.5
15
16
1.60
1.06
0.98
0.65
0.37
14
14.5
14.5
15
16
80 mV
80 mV
80 mV
80 mV
1.75
1.15
1.00
0.65
0.37
15
15
15.5
16
17
1.75
1.15
1.00
0.65
0.37
15
15
15.5
16
16
Input Range
160 mV
Input Range
160 mV
Input Range
160 mV
Input Range
160 mV
3.50
1.22
1.10
0.65
0.37
15
16
16.5
17
18
3.50
1.22
1.10
0.65
0.37
15
16
16
16
16
320 mV
320 mV
320 mV
320 mV
4.50
1.77
1.66
0.95
0.51
15.5
17
17
17.5
18.5
4.50
1.77
1.66
0.95
0.51
15.5
16
16
16
16
640 mV
640 mV
640 mV
640 mV
6.70
3.0
1.40
0.82
16
17
17
18
18.8
6.70
3.0
1.40
0.82
16
16
16
16
16
1.28 V
1.28 V
1.28 V
1.28 V
11.75
5.08
5.0
2.30
1.25
16
17
17
18.5
19.2
11.75
5.08
5.0
2.30
1.25
16
16
16
16
16
2.56 V
2.56 V
2.56 V
2.56 V