AD76881 Просмотр технического описания (PDF) - Analog Devices
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AD76881 Datasheet PDF : 28 Pages
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AD7986
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = DVDD = VIO = 2.5 V, BVDD = 5.0 V, VREF = 5.0 V, external reference (PDREF = high, REFIN = low), unless otherwise noted.
2.5
2.0
POSITIVE INL = +1.57LSB
POSITIVE DNL = +0.54LSB
2.0
NEGATIVE INL = –1.25LSB
1.5
NEGATIVE DNL = –0.60LSB
1.5
1.0
1.0
0.5
0.5
0
0
–0.5
–0.5
–1.0
–1.0
–1.5
–2.0
–1.5
–2.5
0
65,536
131,072
CODE
196,608
Figure 5. Integral Nonlinearity vs. Code
262,144
–2.0
0
65,536
131,072
CODE
196,608
Figure 8. Differential Nonlinearity vs. Code
262,144
45,000
40,000
35,000
41,811
35,204 34,894
30,000
25,000
20,000
15,000
10,000
8250
7662
5000
1661
0 101
0
3FF6
3FF8
1418 68 3 0
3FFA 3FFC 3FFE
0
CODE IN HEX
Figure 6. Histogram of DC Input at Code Center (External Reference)
45,000
40,000
41,434
38,665
35,000
30,000
30,897
25,000
20,000
15,000
10,000
10,211
6399
5000
2283
0 4 142
0
3FF5 3FF7
3FF9
3FFB
1002 34 1 0
3FFD 3FFF
1
CODE IN HEX
Figure 9. Histogram of DC Input at Code Transition (External Reference)
45,000
40,000
39,395
35,000
30,000
31,020
29,138
25,000
20,000
15,000
10,000
12,773
11,107
5000
3662
0 1 55 547
0
3FFEC 3FFEE 3FF0
3FF2 3FF4
CODE IN HEX
2932
407 35 0
3FF6 3FF8
Figure 7. Histogram of DC Input at Code Center (Internal Reference)
40,000
35,000
37,385
36,210
30,000
25,000
20,000
18,953
22,077
15,000
10,000
6513
5000
0 0 1 3 1501282
3FFEB 3FFED 3FFEF
3FF1
3FF3
CODE IN HEX
6879
1438
165 16 0
3FF5 3FF7 3FF9
Figure 10. Histogram of DC Input at Code Transition (Internal Reference)
Rev. B | Page 9 of 28
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