AD7988-1 데이터 시트보기 (PDF) - Analog Devices
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AD7988-1 Datasheet PDF : 24 Pages
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Data Sheet
1.00
POSITIVE INL: +0.18 LSB
NEGATIVE INL: –0.21 LSB
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
0
16384
32768
49152
65536
CODE
Figure 12. Differential Nonlinearity vs. Code, VREF = 5 V
1.00
POSITIVE INL: +0.25 LSB
NEGATIVE INL: –0.22 LSB
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
0
16384
32768
49152
65536
CODE
Figure 13. Differential Nonlinearity vs. Code, VREF = 2.5 V
180k
160k
162595
140k
120k
100k
80k
60k
52720
42731
40k
20k
0 0 0 22 1291
852 29 2 0 0 0
8003 8004 8005 8006 8007 8008 8009 800A 800B 800C 800D 800E 800F
CODE IN HEX
Figure 14. Histogram of a DC Input at the Code Center, VREF = 5 V
AD7988-1/AD7988-5
60k
50970
50k
45198
40k
30k
20k
18848
12424
10k
2290
0 0 0 1 94
1217
30 0 0
7FFA 7FFB 7FFC 7FFD 7FFE 7FFF 8000 8001 8002 8003 8004 8005 8006
CODE IN HEX
Figure 15. Histogram of a DC Input at the Code Transition, VREF = 2.5 V
100
16
SNR
SINAD
ENOB
95
15
90
14
85
13
80
12
2.25
2.75
3.25
3.75
4.25
4.75
5.25
REFERENCE VOLTAGE (V)
Figure 16. SNR, SINAD, and ENOB vs. Reference Voltage
60k
53412
50k
40k
37417 31540
30k
20k
10k
7285
5807
0 0 0 19 590
512 11 0 0
7FFA 7FFB 7FFC 7FFD 7FFE 7FFF 8000 8001 8002 8003 8004 8005 8006
CODE IN HEX
Figure 17. Histogram of a DC Input at the Code Center, VREF = 2.5 V
Rev. B | Page 11 of 24
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