AD7623 Analog Devices, AD7623 Datasheet - Page 13

• Manufacturer Part Number: AD7623
• Manufacturer: Analog Devices

Specifications of AD7623

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 1.33MSPS
• Interface: Byte,Par,Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

–100
–105
–120
–110
–115
–70
–75
–80
–85
–90
–95
92
90
88
86
84
82
–100
–120
–140
–160
–180
–20
–40
–60
–80
1
1
0
THIRD
HARMONIC
SECOND
HARMONIC
ENOB
THD
0
SFDR
Figure 13. THD, Harmonics, and SFDR vs. Frequency
Figure 12. SNR, SINAD and ENOB vs. Frequency
100
10
10
Figure 11. FFT 20 kHz
200
FREQUENCY (kHz)
FREQUENCY (kHz)
SINAD
FREQUENCY (kHz)
300
100
100
400
SNR
f
f
SNR = 89.4dB
THD = –104.1dB
SFDR = 107.2dB
SINAD = 89.3dB
S
IN
= 1.33MSPS
500
= 20.03kHz
1000
1000
600
15.4
15.0
14.6
14.2
13.8
13.4
120
110
100
90
80
70
60
50
40
30
20
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–100
–105
–110
–115
–120
–125
–130
–80
–85
–90
–95
90
89
88
87
86
85
84
83
82
–100
–120
–140
–160
–180
–55
–55
–20
–40
–60
–80
0
Figure 16. THD, Harmonics, and SFDR vs. Temperature
0
THIRD
HARMONIC
–35
Figure 15. SNR, SINAD, and ENOB vs. Temperature
–35
SINAD
ENOB
THD
SNR
SECOND
HARMONIC
100
–15
–15
SFDR
Figure 14. FFT 100 kHz
5
5
TEMPERATURE (°C)
TEMPERATURE (°C)
200
FREQUENCY (kHz)
25
25
300
45
45
65
65
400
85
85
f
f
SNR = 89.2dB
THD = –95.6dB
SFDR = 96dB
SINAD = 88.4dB
S
IN
500
= 1.33MSPS
= 100.13kHz
105
105
AD7623
125
125
600
15.5
15.0
14.5
14.0
13.5
100
95
90
85
80
75
70
65
60
55
50