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AD9268-80EBZ データシート(PDF) 21 Page - Analog Devices

部品番号 AD9268-80EBZ
部品情報  1.8 V Dual Analog-to-Digital Converter (ADC)
PDF  45 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

AD9268-80EBZ データシート(HTML) 21 Page - Analog Devices

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AD9268
Rev. A | Page 20 of 44
120
110
100
90
80
70
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
INPUT AMPLITUDE (dBFS)
SNRFS (DITHER ON)
SNRFS (DITHER OFF)
SFDRFS (DITHER ON)
SFDRFS (DITHER OFF)
Figure 26. AD9268-105 Single-Tone SNR/SFDR vs. Input Amplitude (AIN)
with fIN = 30 MHz with and without Dither Enabled
100
95
90
85
80
75
70
65
0
50
100
150
200
250
300
INPUT FREQUENCY (MHz)
SNR @ –40°C
SFDR @ –40°C
SNR @ +25°C
SFDR @ +25°C
SNR @ +85°C
SFDR @ +85°C
Figure 27. AD9268-105 Single-Tone SNR/SFDR vs. Input Frequency (fIN)
with 2 V p-p Full Scale
105
100
95
90
85
80
75
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105
SAMPLE RATE (MSPS)
SNR, CHANNEL B
SFDR, CHANNEL B
SNR, CHANNEL A
SFDR, CHANNEL A
Figure 28. AD9268-105 Single-Tone SNR/SFDR vs. Sample Rate (fS)
with fIN = 70.1 MHz
250,000
2.23 LSB rms
200,000
150,000
100,000
50,000
0
OUTPUT CODE
Figure 29. AD9268-105 Grounded Input Histogram
6
4
2
0
–2
–4
–6
0
10,000
20,000
30,000
40,000
50,000
60,000
OUTPUT CODE
DITHER ENABLED
DITHER DISABLED
Figure 30. AD9268-105 INL with fIN = 9.7 MHz
1.00
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
OUTPUT CODE
0
10,000
20,000
30,000
40,000
50,000
60,000
Figure 31. AD9268-105 DNL with fIN = 9.7 MHz



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