Datasheet

Data Sheet AD9219
Rev. E | Page 5 of 56
AC SPECIFICATIONS
AVDD = 1.8 V, DRVDD = 1.8 V, 2 V p-p differential input, 1.0 V internal reference, AIN = −0.5 dBFS, unless otherwise noted.
Table 2.
AD9219-40 AD9219-65
Parameter
1
Temperature Min Typ Max Min Typ Max Unit
SIGNAL-TO-NOISE RATIO (SNR)
f
IN
= 2.4 MHz Full 61.2 60.2 dB
f
IN
= 19.7 MHz Full 60.0 60.5 60.2 dB
f
IN
= 35 MHz Full 61.0 59.0 60.2 dB
f
IN
= 70 MHz Full 60.9 60.1 dB
SIGNAL-TO-NOISE AND DISTORTION RATIO (SINAD)
f
IN
= 2.4 MHz Full 61.1 60.1 dB
f
IN
= 19.7 MHz Full 59.8 60.3 60.1 dB
f
IN
= 35 MHz Full 60.9 58.8 60.0 dB
f
IN
= 70 MHz Full 60.8 59.8 dB
EFFECTIVE NUMBER OF BITS (ENOB)
f
IN
= 2.4 MHz Full 9.87 9.71 Bits
f
IN
= 19.7 MHz Full 9.67 9.76 9.71 Bits
f
IN
= 35 MHz Full 9.84 9.51 9.71 Bits
f
IN
= 70 MHz Full 9.82 9.69 Bits
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
f
IN
= 2.4 MHz Full 84 78 dBc
f
IN
= 19.7 MHz Full 71 82 78 dBc
f
IN
= 35 MHz Full 80 68 77 dBc
f
IN
= 70 MHz Full 79 72 dBc
WORST HARMONIC (Second or Third)
f
IN
= 2.4 MHz Full −84 −80 dBc
f
IN
= 19.7 MHz Full −82 −71 −80 dBc
f
IN
= 35 MHz Full −80 −77 −68 dBc
f
IN
= 70 MHz Full −79 −72 dBc
WORST OTHER (Excluding Second or Third)
f
IN
= 2.4 MHz Full −90 −78 dBc
f
IN
= 19.7 MHz Full −90 −77 −78 dBc
f
IN
= 35 MHz Full −90 −80 −70 dBc
f
IN
= 70 MHz Full −88 −80 dBc
TWO-TONE INTERMODULATION DISTORTION (IMD)—
AIN1 and AIN2 = −7.0 dBFS
f
IN1
= 15 MHz, f
IN2
= 16 MHz 25°C 81.5 78.1 dBc
f
IN1
= 70 MHz, f
IN2
= 71 MHz 25°C 79.5 74.5 dBc
1
See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for definitions and for details of how these tests were completed.