Datasheet

Data Sheet AD9212
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.
AD9212-40 AD9212-65
Parameter
1
Temperature Min Typ Max Min Typ Max Unit
SIGNAL-TO-NOISE RATIO (SNR)
f
IN
= 2.4 MHz Full 61.2 60.8 dB
f
IN
= 19.7 MHz Full 60.2 61.2 60.8 dB
f
IN
= 35 MHz Full 61.2 58.5 60.8 dB
f
IN
= 70 MHz Full 61.0 60.7 dB
SIGNAL-TO-NOISE AND DISTORTION RATIO (SINAD)
f
IN
= 2.4 MHz Full 61.2 60.7 dB
f
IN
= 19.7 MHz Full 60.0 61.0 60.6 dB
f
IN
= 35 MHz Full 61.0 57.0 60.5 dB
f
IN
= 70 MHz Full 60.8 60.4 dB
EFFECTIVE NUMBER OF BITS (ENOB)
f
IN
= 2.4 MHz Full 9.87 9.81 Bits
f
IN
= 19.7 MHz Full 9.71 9.87 9.81 Bits
f
IN
= 35 MHz Full 9.87 9.43 9.81 Bits
f
IN
= 70 MHz Full 9.84 9.79 Bits
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
f
IN
= 2.4 MHz Full 87 81 dBc
f
IN
= 19.7 MHz Full 72 85 79 dBc
f
IN
= 35 MHz Full 79 62 77 dBc
f
IN
= 35 MHz 25°C 69 77 dBc
f
IN
= 70 MHz Full 74 72 dBc
WORST HARMONIC (SECOND OR THIRD)
f
IN
= 2.4 MHz Full −87 −81 dBc
f
IN
= 19.7 MHz Full −85 −72 −79 dBc
f
IN
= 35 MHz Full −79 −77 −62 dBc
f
IN
= 35 MHz 25°C −77 −69 dBc
f
IN
= 70 MHz Full −74 −72 dBc
WORST OTHER (EXCLUDING SECOND OR THIRD)
f
IN
= 2.4 MHz Full −90 −86 dBc
f
IN
= 19.7 MHz Full −85 −72 −86 dBc
f
IN
= 35 MHz Full −85 −85 −70 dBc
f
IN
= 70 MHz Full −85 −85 dBc
TWO-TONE INTERMODULATION DISTORTION (IMD)—
AIN1 AND AIN2 = −7.0 dBFS
f
IN1
= 15 MHz, f
IN2
= 16 MHz 25°C 80.0 77.0 dBc
f
IN1
= 70 MHz, f
IN2
= 71 MHz 25°C 77.0 77.0 dBc
1
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.