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AD7699 Datasheet(PDF) 12 Page - Analog Devices

Part # AD7699
Description  16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC
PDF  28 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7699 Datasheet(HTML) 12 Page - Analog Devices

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AD7682/AD7689
Rev. 0 | Page 12 of 28
100
95
90
85
80
75
70
65
60
0
50
100
150
200
FREQUENCY (kHz)
VDD = VREF = 5V, –0.5dB
VDD = VREF = 5V, –10dB
VDD = VREF = 2.5V, –0.5dB
VDD = VREF = 2.5V, –10dB
Figure 12. SNR vs. Frequency
96
94
92
90
88
86
84
82
80
17.0
16.5
16.0
15.5
15.0
14.5
14.0
13.5
13.0
1.0
REFERENCE VOLTAGE (V)
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SNR @ 2kHz
SINAD @ 2kHz
SNR @ 20kHz
SINAD @ 20kHz
ENOB @ 2kHz
ENOB @ 20kHz
Figure 13. SNR, SINAD, and ENOB vs. Reference Voltage
96
94
92
90
88
86
84
–55
TEMPERATURE (°C)
–35
–15
5
25
45
65
85
105
125
fIN = 20kHz
VDD = VREF = 5V
VDD = VREF = 2.5V
Figure 14. SNR vs. Temperature
100
95
90
85
80
75
70
65
60
0
50
100
150
200
FREQUENCY (kHz)
VDD = VREF = 5V, –0.5dB
VDD = VREF = 5V, –10dB
VDD = VREF = 2.5V, –0.5dB
VDD = VREF = 2.5V, –10dB
Figure 15. SINAD vs. Frequency
130
125
120
115
110
105
100
95
90
85
80
75
70
1.0
–60
–65
–70
–75
–80
–85
–90
–95
–100
–105
–110
–115
–120
REFERENCE VOLTAGE (V)
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SFDR = 2kHz
SFDR = 20kHz
THD = 2kHz
THD = 20kHz
Figure 16. SFDR and THD vs. Reference Voltage
–90
–95
–100
–105
–110
–55
TEMPERATURE (°C)
–35
–15
5
25
45
65
85
105
125
fIN = 20kHz
VDD = VREF = 5V
VDD = VREF = 2.5V
Figure 17. THD vs. Temperature



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