AD7699 데이터 시트보기 (PDF) - Analog Devices
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AD7699 Datasheet PDF : 28 Pages
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AD7699
TYPICAL PERFORMANCE CHARACTERISTICS
VDD = 5V, VREF = 5V, VIO = VDD, unless otherwise noted
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
0
250,000
200,000
16,384
32,768
CODES
49,152
Figure 5. Integral Nonlinearity vs. Code
65,536
220,840
σ = 0.51 LSB
VREF = 5V
150,000
100,000
50,000
26,926
13,341
00
0
3
10
7FF9 7FFA 7FFB 7FFC 7FFD 7FFE 7FFF
CODE IN HEX
0
8000
0
8001
Figure 6. Histogram of a DC Input at Code Center
0
VREF = 5V
–20
fS = 500kSPS
fIN = 19.94kHz
SNR = 92.3dB
–40
SINAD = 91.5dB
THD = –98dB
–60
SFDR = 100dB
SECOND HARMONIC = –111dB
–80
THIRD HARMONIC = –101dB
–100
–120
–140
–160
–180
0
25 50 75 100 125 150 175 200 225 250
FREQUENCY (kHz)
Figure 7. 20 kHz FFT, VREF = 5 V
1.5
1.0
0.5
0
–0.5
–1.0
0
250,000
200,000
16,384
32,768
CODES
49,152
Figure 8. Differential Nonlinearity vs. Code
65,536
191,013
σ = 0.78 LSB
VREF = 4.096V
150,000
100,000
50,000
31,411
38,420
00
0 119
157
7FF9 7FFA 7FFB 7FFC 7FFD 7FFE 7FFF
CODE IN HEX
0
8000
0
8001
Figure 9. Histogram of a DC Input at Code Center
0
VREF = 4.096V
–20
fS = 500kSPS
fIN = 19.94kHz
SNR = 91.1dB
–40
SINAD = 90.4dB
THD = –98dB
–60
SFDR = 100dB
SECOND HARMONIC = –104dB
–80
THIRD HARMONIC = –101dB
–100
–120
–140
–160
–180
0
25 50 75 100 125 150 175 200 225 250
FREQUENCY (kHz)
Figure 10. 20 kHz FFT, VREF = 4.096 V
Rev. 0 | Page 8 of 28
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