Datasheet

AD9284 Data Sheet
Rev. A | Page 4 of 24
AC SPECIFICATIONS
AVDD = 1.8 V, DRVDD = 1.8 V, 1.0 V internal ADC reference, maximum sample rate, VIN = −1.0 dBFS differential input, unless
otherwise noted.
Table 2.
Parameter Temperature Min Typ Max Unit
SIGNAL-TO-NOISE RATIO (SNR)
f
IN
= 10.3 MHz 25°C 49.3 dBFS
f
IN
= 70 MHz 25°C 49.3 dBFS
f
IN
= 96.6 MHz Full 48.7 49.3 dBFS
f
IN
= 220 MHz 25°C 49.3 dBFS
SIGNAL-TO-NOISE-AND-DISTORTION (SINAD)
f
IN
= 10.3 MHz 25°C 49.2 dBFS
f
IN
= 70 MHz
25°C
49.2
dBFS
f
IN
= 96.6 MHz Full 48.5 49.2 dBFS
f
IN
= 220 MHz 25°C 49.2 dBFS
EFFECTIVE NUMBER OF BITS (ENOB)
f
IN
= 10.3 MHz 25°C 7.9 Bits
f
IN
= 70 MHz 25°C 7.9 Bits
f
IN
= 96.6 MHz Full 7.8 7.9 Bits
f
IN
= 220 MHz 25°C 7.9 Bits
WORST SECOND OR THIRD HARMONIC
f
IN
= 10.3 MHz 25°C −70 dBc
f
IN
= 70 MHz 25°C −70 dBc
f
IN
= 96.6 MHz
Full
−70
−61
dBc
f
IN
= 220 MHz 25°C −65 dBc
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
f
IN
= 10.3 MHz
25°C
70
dBc
f
IN
= 70 MHz 25°C 70 dBc
f
IN
= 96.6 MHz Full 61 69 dBc
f
IN
= 220 MHz 25°C 65 dBc
WORST OTHER HARMONIC OR SPUR
f
IN
= 10.3 MHz 25°C −71 dBc
f
IN
= 70 MHz 25°C −71 dBc
f
IN
= 96.6 MHz Full −70 −64 dBc
f
IN
= 220 MHz 25°C −67 dBc
CROSSTALK Full −80 dBc