Datasheet

AD9633 Data Sheet
Rev. 0 | Page 4 of 40
AC SPECIFICATIONS
AVDD = 1.8 V, DRVDD = 1.8 V, 2 V p-p differential input, 1.0 V internal reference, AIN = −1.0 dBFS, unless otherwise noted.
Table 2.
Parameter
1
Temp
AD9633-80 AD9633-105 AD9633-125
Unit Min Typ Max Min Typ Max Min Typ Max
SIGNAL-TO-NOISE RATIO (SNR)
f
IN
= 9.7 MHz 25°C 71.7 71.7 71.8 dBFS
f
IN
= 30.5 MHz 25°C 71.7 71.6 71.4 dBFS
f
IN
= 70 MHz Full 70.0 70.5 70.2 71.0 70.5 71.1 dBFS
f
IN
= 140 MHz 25°C 70.3 70.2 70.0 dBFS
f
IN
= 200 MHz 25°C 69.4 69.8 69.4 dBFS
SIGNAL-TO-NOISE-AND-DISTORTION RATIO (SINAD)
f
IN
= 9.7 MHz 25°C 71.6 71.6 71.1 dBFS
f
IN
= 30.5 MHz 25°C 71.5 71.5 71.3 dBFS
f
IN
= 70 MHz Full 69.0 70.4 68.5 70.9 69.5 71.0 dBFS
f
IN
= 140 MHz 25°C 70.2 69.9 69.9 dBFS
f
IN
= 200 MHz 25°C 68.4 68.7 67.4 dBFS
EFFECTIVE NUMBER OF BITS (ENOB)
f
IN
= 9.7 MHz 25°C 11.6 11.6 11.5 Bits
f
IN
= 30.5 MHz 25°C 11.6 11.6 11.5 Bits
f
IN
= 70 MHz Full 11.5 11.6 11.5 Bits
f
IN
= 140 MHz 25°C 11.4 11.3 11.3 Bits
f
IN
= 200 MHz 25°C 11.2 11.2 10.9 Bits
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
f
IN
= 9.7 MHz 25°C 96 94 94 dBc
f
IN
= 30.5 MHz 25°C 90 89 91 dBc
f
IN
= 70 MHz Full 76 96 75 87 75 91 dBc
f
IN
= 140 MHz 25°C 87 91 86 dBc
f
IN
= 200 MHz 25°C 86 88 86 dBc
WORST HARMONIC (SECOND OR THIRD)
f
IN
= 9.7 MHz 25°C −96 −94 −94 dBc
f
IN
= 30.5 MHz 25°C −90 −89 −91 dBc
f
IN
= 70 MHz Full −96 −76 −87 −75 −91 −75 dBc
f
IN
= 140 MHz 25°C −87 −91 −86 dBc
f
IN
= 200 MHz 25°C −86 −88 −86 dBc
WORST OTHER HARMONIC (EXCLUDING SECOND OR THIRD)
f
IN
= 9.7 MHz 25°C −98 −97 −95 dBFS
f
IN
= 30.5 MHz 25°C −96 −94 −98 dBFS
f
IN
= 70 MHz Full −97 −82 −95 −82 −97 −84 dBFS
f
IN
= 140 MHz 25°C −98 −94 −93 dBFS
f
IN
= 200 MHz 25°C −97 −94 −91 dBFS
TWO-TONE INTERMODULATION DISTORTION (IMD)—AIN1 AND
AIN2 = −7.0 dBFS
f
IN1
= 70.5 MHz, f
IN2
= 72.5 MHz 25°C 85 86 87 dBc
CROSSTALK
2
Full −95 −95 −95 dB
CROSSTALK (OVERRANGE CONDITION)
3
25°C −89 −89 −89 dB
POWER SUPPLY REJECTION RATIO (PSRR)
1, 4
AVDD 25°C 52 52 52 dB
DRVDD 25°C 75 75 75 dB
ANALOG INPUT BANDWIDTH, FULL POWER 25°C 650 650 650 MHz
1
See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for definitions and for details on how these tests were completed.
2
Crosstalk is measured at 70 MHz with −1.0 dBFS analog input on one channel and no input on the adjacent channel.
3
Overrange condition is specified with 3 dB of the full-scale input range.
4
PSRR is measured by injecting a sinusoidal signal at 10 MHz to the power supply pin and measuring the output spur on the FFT. PSRR is calculated as the ratio of the
amplitudes of the spur voltage over the pin voltage, expressed in decibels.