AD9484
Rev. A | Page 4 of 24
AC SPECIFICATIONS
AVDD = 1.8 V, DRVDD = 1.8 V, TMIN = 40°C, TMAX = +85°C, fIN = 1.0 dBFS, full scale = 1.5 V, unless otherwise noted.
Table 2.
Temp
Min
Typ
Max
Unit
SNR
fIN = 30.3 MHz
25°C
47.0
dBFS
fIN = 70.3 MHz
25°C
47.0
dBFS
fIN = 100.3 MHz
25°C
47.0
dBFS
Full
46.5
dBFS
fIN = 250.3 MHz
25°C
47.0
dBFS
fIN = 450.3 MHz
25°C
46.9
dBFS
SINAD
fIN = 30.3 MHz
25°C
47.0
dBFS
fIN = 70.3 MHz
25°C
47.0
dBFS
fIN = 100.3 MHz
25°C
47.0
dBFS
Full
46.4
dBFS
fIN = 250.3 MHz
25°C
47.0
dBFS
fIN = 450.3 MHz
25°C
46.9
dBFS
EFFECTIVE NUMBER OF BITS (ENOB)
fIN = 30.3 MHz
25°C
7.5
Bits
fIN = 70.3 MHz
25°C
7.5
Bits
fIN = 100.3 MHz
25°C
7.5
Bits
fIN = 250.3 MHz
25°C
7.5
Bits
fIN = 450.3 MHz
25°C
7.5
Bits
WORST HARMONIC (SECOND or THIRD)
fIN = 30.3 MHz
25°C
87
dBc
fIN = 70.3 MHz
25°C
86
dBc
fIN = 100.3 MHz
25°C
87
dBc
Full
75
dBc
fIN = 250.3 MHz
25°C
83
dBc
fIN = 450.3 MHz
25°C
70
dBc
SFDR
fIN = 30.3 MHz
25°C
82
dBc
fIN = 70.3 MHz
25°C
81
dBc
fIN = 100.3 MHz
25°C
82
dBc
Full
75
dBc
fIN = 250.3 MHz
25°C
79
dBc
fIN = 450.3 MHz
25°C
70
dBc
WORST OTHER HARMONIC (SFDR EXCLUDING SECOND and THIRD)
fIN = 30.3 MHz
25°C
82
dBc
fIN = 70.3 MHz
25°C
81
dBc
fIN = 100.3 MHz
25°C
82
dBc
Full
75
dBc
fIN = 250.3 MHz
25°C
79
dBc
fIN = 450.3 MHz
25°C
77
dBc
TWO-TONE IMD
fIN1 = 119.5 MHz, fIN2 = 122.5 MHz
25°C
77
dBc
ANALOG INPUT BANDWIDTH
Full Power
25°C
1
GHz
1 All ac specifications tested by driving CLK+ and CLK differentially.
2 See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for a complete set of definitions and how these tests were completed.