AD7982 Analog Devices, AD7982 Datasheet - Page 10

• Manufacturer Part Number: AD7982
• Manufacturer: Analog Devices

Specifications of AD7982

• Resolution (bits): 18bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: SOP

AD7982
100
100
100
95
90
85
80
98
96
94
92
90
95
90
85
80
2.25
–55
0.1
Figure 12. SNR, SINAD, and ENOB vs. Reference Voltage
–35
2.75
–15
Figure 13. SNR vs. Temperature
Figure 14. SINAD vs. Frequency
1
SNR, SINAD
3.25
REFERENCE VOLTAGE (V)
5
TEMPERATURE (°C)
FREQUENCY (kHz)
ENOB
25
3.75
10
45
4.25
65
100
85
4.75
105
5.25
1000
125
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15
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–125
–115
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–121
–123
–125
–80
–85
–90
–95
2.25
–55
0.1
–35
Figure 15. THD, SFDR vs. Reference Voltage
2.75
–15
Figure 16. THD vs. Temperature
Figure 17. THD vs. Frequency
1
REFERENCE VOLTAGE (V)
3.25
5
SFDR
TEMPERATURE (°C)
FREQUENCY (kHz)
THD
25
3.75
10
45
4.25
65
100
85
4.75
105
5.25
1000
125
130
125
120
115
110
105
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