AD7690 데이터 시트보기 (PDF) - Analog Devices
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AD7690 Datasheet PDF : 24 Pages
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Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
1.5
POSITIVE INL = +0.42LSB
NEGATIVE INL = –0.6LSB
1.0
0.5
0
–0.5
–1.0
–1.5
0
65536
131072
CODE
196608
Figure 7. Integral Nonlinearity vs. Code
262144
80k
VDD = REF = 5V
70k
67198
60k
50k
40k
31666
30k
27546
20k
10k
0 0 39 2614
0
1991 18 0 0
55 57 58 59 5A 5B 5C 5D 5E 5F 60
CODE IN HEX
Figure 8. Histogram of a DC Input at the Code Center
AD7690
1.0
0.5
0
–0.5
–1.0
0
65536
131072
CODE
196608
262144
Figure 10. Differential Nonlinearity vs. Code
60k
52500 53936
VDD = REF = 5V
50k
40k
30k
20k
12623
11212
10k
0 0 2 533
263 3 0 0
0
31 32 33 34 35 36 37 38 39 3A 3B 3C
CODE IN HEX
Figure 11. Histogram of a DC Input at the Code Transition
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
0
fS = 400kSPS
fIN = 1.99kHz
SNR = 101.4dB
THD = –122dB
SFDR = 130dB
SINAD = 101.3dB
20 40 60 80 100 120 140 160 180 200
FREQUENCY (kHz)
Figure 9. Fast Fourier Transform Plot
105
104
103
102
101
100
99
98
97
96
95
–10
Rev. C | Page 9 of 24
SNR
THD
–8
–6
–4
–2
INPUT LEVEL (dB)
Figure 12. SNR, THD vs. Input Level
–110
–112
–114
–116
–118
–120
–122
–124
–126
–128
–130
0
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