AD7719 Analog Devices, AD7719 Datasheet - Page 15

• Manufacturer Part Number: AD7719
• Description: Low Voltage, Low Power, 16-/24-Bit, Dual Sigma Delta ADC
• Manufacturer: Analog Devices

Specifications of AD7719

• Resolution (bits): 24bit
• # Chan: 6
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: (2Vref) p-p,(2Vref/PGA Gain) p-p,(Vref) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: SOIC,SOP

REV. A
SF
Word
13
69
255
SF
Word
13
69
255
SF
Word
13
69
255
SF
Word
13
69
255
Table VI. Typical Output RMS Noise vs. Update
Rate for Auxiliary ADC (Unbuffered Mode)
SF
Word
13
69
255
Table II. Typical Output RMS Noise vs. Input Range and Update Rate for Main ADC (Buffered Mode) Output RMS
Noise in V
Table III. Peak-to-Peak Resolution vs. Input Range and Update Rate for Main ADC (Buffered Mode) Peak-to-Peak
Resolution in Bits
Table IV. Typical Output RMS Noise vs. Input Range and Update Rate for Main ADC (Unbuffered Mode) Output
RMS Noise in V
Table V. Peak-to-Peak Resolution vs. Input Range and Update Rate for Main ADC (Unbuffered Mode) Peak-to-Peak
Resolution in Bits
Rate (Hz)
Rate (Hz)
5.35
Rate (Hz)
Rate (Hz)
5.35
Data Update
105.3
19.79
5.35
Data Update
105.3
19.79
Data Update
105.3
19.79
5.35
Data Update
105.3
19.79
Data Update
Rate (Hz)
105.3
19.79
5.35
1.50
0.60
0.35
12
13
14
1.27
0.52
0.30
12
13
14
20 mV
20 mV
20 mV
20 mV
Input Range
10.75 µV
2.00 µV
1.15 µV
2.5 V
1.50
0.65
0.35
13
14
15
1.27
0.56
0.30
13
14
15
40 mV
40 mV
40 mV
40 mV
1.60
0.65
0.37
14
15
16
1.35
0.56
0.32
14
15
16
80 mV
80 mV
80 mV
80 mV
1.75
0.65
0.37
15
16
17
1.48
0.56
0.32
15
16
17
Input Range
Input Range
Input Range
Input Range
–15–
160 mV
160 mV
160 mV
160 mV
Table VII. Peak-to-Peak Resolution vs. Update
Rate for Auxiliary ADC (Unbuffered Mode)
SF
Word
13
69
255
3.50
0.65
0.37
15
17
18
2.95
0.56
0.32
15
17
18
320 mV
320 mV
320 mV
320 mV
Data Update
Rate (Hz)
105.3
19.79
5.35
4.50
0.95
0.51
15.5
17.5
18.5
3.82
0.82
0.44
15.5
17.5
18.5
640 mV
640 mV
640 mV
640 mV
Input Range
16 Bits
16 Bits
16 Bits
2.5 V
6.70
1.40
0.82
16
18
18.8
5.69
1.21
0.71
16
18
19
1.28 V
1.28 V
1.28 V
1.28 V
AD7719
11.75
2.30
1.25
16
18.5
19.2
10.2
2.00
1.10
16
18.5
19.5
2.56 V
2.56 V
2.56 V
2.56 V