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AD7621 データシート(PDF) 12 Page - Analog Devices

部品番号 AD7621
部品情報  16-Bit, 750 kSPS, Unipolar/Bipolar Programmable Input PulSAR ADC
PDF  32 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
Logo AD - Analog Devices

AD7621 データシート(HTML) 12 Page - Analog Devices

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AD7612
Rev. 0 | Page 12 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = DVDD = 5 V; OVDD = 5 V; VCC = 15 V; VEE = −15 V; VREF = 5 V; TA = 25°C.
1.5
–1.5
0
65536
CODE
–1.0
–0.5
0
0.5
1.0
16384
32768
49152
Figure 5. Integral Nonlinearity vs. Code
180
0
–1.0
1.0
INL DISTRIBUTION (LSB)
160
140
120
100
80
60
40
20
–0.8 –0.6 –0.4 –0.2
0
0.2
0.4
0.6
0.8
NEGATIVE INL
POSITIVE INL
Figure 6. Integral Nonlinearity Distribution (239 Devices)
200k
20k
0
7FFE
8006
CODE IN HEX
40k
60k
80k
100k
120k
140k
160k
180k
7FFF 8000
8001
8002
8003
8004
8005
00
15
93
0
0
σ = 0.55
181942
47749
31321
Figure 7. Histogram of 261,120 Conversions of a DC Input
at the Code Center
1.5
–1.0
0
65536
CODE
0
0.5
16384
32768
49152
1.0
–0.5
Figure 8. Differential Nonlinearity vs. Code
180
0
–1.0
1.0
DNL DISTRIBUTION (LSB)
160
140
120
100
80
60
40
20
–0.8 –0.6 –0.4 –0.2
0
0.2
0.4
0.6
0.8
NEGATIVE DNL
POSITIVE DNL
Figure 9. Differential Nonlinearity Distribution (239 Devices)
140k
0
7FFE
8007
8006
CODE IN HEX
40k
60k
80k
100k
7FFF 8000 8001 8002 8003 8004 8005
20k
120k
00
01
1232
0
0
917
σ = 0.52
130570
128400
Figure 10. Histogram of 261,120 Conversions of a DC Input
at the Code Transition



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