AD6643 查看數據表（PDF） - Analog Devices
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AD6643 Datasheet PDF : 40 Pages
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Data Sheet
AD6643
ADC AC SPECIFICATIONS
AVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.75 V p-p full-scale input range, default SPI,
unless otherwise noted.
Table 2.
Parameter1
SIGNAL-TO-NOISE-RATIO (SNR)
NSR Disabled
fIN = 30 MHz
fIN = 90 MHz
fIN = 140 MHz
fIN = 185 MHz
fIN = 220 MHz
NSR Enabled
22% BW Mode
fIN = 30 MHz
fIN = 90 MHz
fIN = 140 MHz
fIN = 185 MHz
fIN = 220 MHz
33% BW Mode
fIN = 30 MHz
fIN = 90 MHz
fIN = 140 MHz
fIN = 185 MHz
fIN = 220 MHz
SIGNAL-TO-NOISE-AND-DISTORTION (SINAD)
fIN = 30 MHz
fIN = 90 MHz
fIN = 140 MHz
fIN = 185 MHz
fIN = 220 MHz
WORST SECOND OR THIRD HARMONIC
fIN = 30 MHz
fIN = 90 MHz
fIN = 140 MHz
fIN = 185 MHz
fIN = 220 MHz
AD6643-200
Temperature Min
Typ
Max
25°C
66.6
25°C
66.5
Full
66.2
25°C
66.4
25°C
66.2
Full
25°C
66.0
25°C
76.1
25°C
76.1
Full
74.5
25°C
75.5
25°C
74.7
Full
25°C
74.2
25°C
76.1
25°C
73.6
Full
72.0
25°C
73.1
25°C
72.6
Full
25°C
72.1
25°C
65.6
25°C
65.5
Full
65.1
25°C
65.3
25°C
65.1
Full
25°C
64.9
25°C
−92
25°C
−91
Full
−80
25°C
−88
25°C
−88
Full
25°C
−84
AD6643-250
Min
Typ
Max
66.4
66.2
66.1
65.9
65.3
65.6
74.8
74.5
74.2
73.7
72.6
73.4
72.3
72.0
71.7
71.2
70.1
70.9
65.4
65.2
65.1
64.9
64.3
64.6
−90
−88
−86
−85
−80
−85
Unit
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBc
dBc
dBc
dBc
dBc
dBc
dBc
Rev. C | Page 5 of 40
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