AD6657 データシートの表示（PDF） - Analog Devices
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AD6657 Datasheet PDF : 32 Pages
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Data Sheet
AD6657
AC SPECIFICATIONS
AVDD = 1.8 V, DRVDD = 1.8 V, fS = 185 MSPS, 1.75 V p-p differential input, VIN = −1.0 dBFS differential input, and default SPI, unless
otherwise noted.
Table 2.
Parameter1
SIGNAL-TO-NOISE-RATIO (SNR)—NSR DISABLED
fIN = 30 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 250 MHz
SIGNAL-TO-NOISE-RATIO (SNR)—NSR ENABLED
22% BW Mode
fIN = 70 MHz
fIN = 170 MHz
fIN = 230 MHz
33% BW Mode
fIN = 70 MHz
fIN = 170 MHz
fIN = 230 MHz
SIGNAL-TO-NOISE-AND DISTORTION (SINAD)
fIN = 30 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 250 MHz
EFFECTIVE NUMBER OF BITS (ENOB)
fIN = 30 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 250 MHz
WORST SECOND OR THIRD HARMONIC
fIN = 30 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 250 MHz
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
fIN = 30 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 250 MHz
WORST OTHER HARMONIC (FOURTH THROUGH EIGHTH)
fIN = 30 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 250 MHz
TWO-TONE SFDR (−7 dBFS)
fIN1 = 169 MHz, fIN2 = 172 MHz
CROSSTALK2
ANALOG INPUT BANDWIDTH
Temperature Min
25°C
25°C
Full
65.7
25°C
25°C
Full
72.8
25°C
25°C
Full
71.0
25°C
25°C
25°C
Full
64.1
25°C
25°C
25°C
Full
10.3
25°C
25°C
25°C
Full
−72
25°C
25°C
25°C
Full
72
25°C
25°C
25°C
Full
−82
25°C
25°C
Full
25°C
Typ
Max
66.5
66.5
66.1
65.5
75.5
74.4
72.8
73.7
72.6
71.0
65.5
66.3
65.6
64.3
10.6
10.7
10.6
10.3
−90
−83
−78
−80
90
83
78
80
−100
−96
−90
−95
82
95
800
Unit
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
Bits
Bits
Bits
Bits
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dB
MHz
1 See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for a complete set of definitions.
2 Crosstalk is measured at 155 MHz with −1 dBFS on one channel and no input on the alternate channel.
Rev. B | Page 5 of 32
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