Datasheet

Data Sheet AD9653
Rev. 0 | Page 5 of 40
AC SPECIFICATIONS
AVDD = 1.8 V, DRVDD = 1.8 V, 2.0 V p-p full-scale differential input at −1.0 dBFS; V
REF
= 1.0 V, DCS off, unless otherwise noted.
Table 3.
Parameter
1
Temperature Min Typ Max Unit
SIGNAL-TO-NOISE RATIO (SNR)
f
IN
= 9.7 MHz 25°C 78 dBFS
f
IN
= 15 MHz 25°C 77.8 dBFS
f
IN
= 70 MHz Full 75.5 76.5 dBFS
f
IN
= 128 MHz
25°C
73.9
dBFS
f
IN
= 200 MHz
25°C
71.5
dBFS
SIGNAL-TO-NOISE-AND-DISTORTION RATIO (SINAD)
f
IN
= 9.7 MHz 25°C 78 dBFS
f
IN
= 15 MHz 25°C 77.7 dBFS
f
IN
= 70 MHz Full 74.6 76.1 dBFS
f
IN
= 128 MHz 25°C 73.6 dBFS
f
IN
= 200 MHz 25°C 70.3 dBFS
EFFECTIVE NUMBER OF BITS (ENOB)
f
IN
= 9.7 MHz 25°C 12.7 Bits
f
IN
= 15 MHz 25°C 12.6 Bits
f
IN
= 70 MHz
Full
12.1
12.4
Bits
f
IN
= 128 MHz
25°C
11.9
Bits
f
IN
= 200 MHz 25°C 11.4 Bits
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
f
IN
= 9.7 MHz 25°C 96 dBc
f
IN
= 15 MHz 25°C 93 dBc
f
IN
= 70 MHz Full 78 89 dBc
f
IN
= 128 MHz 25°C 87 dBc
f
IN
= 200 MHz 25°C 77 dBc
WORST HARMONIC (SECOND OR THIRD)
f
IN
= 9.7 MHz 25°C −98 dBc
f
IN
= 15 MHz 25°C −93 dBc
f
IN
= 70 MHz
Full
−78
−89
dBc
f
IN
= 128 MHz 25°C −87 dBc
f
IN
= 200 MHz 25°C −77 dBc
WORST OTHER HARMONIC OR SPUR
f
IN
= 9.7 MHz 25°C −96 dBc
f
IN
= 15 MHz 25°C −98 dBc
f
IN
= 70 MHz Full −85 −94 dBc
f
IN
= 128 MHz 25°C −89 dBc
f
IN
= 200 MHz 25°C −83 dBc
TWO-TONE INTERMODULATION DISTORTION (IMD)—AIN1 AND AIN2 = −7.0 dBFS
f
IN1
= 70.5 MHz, f
IN2
= 72.5 MHz 25°C −90 dBc
CROSSTALK
2
25°C
91
dB
CROSSTALK (OVERRANGE CONDITION)
3
25°C
87
dB
POWER SUPPLY REJECTION RATIO (PSRR)
4
AVDD
25°C
31
dB
DRVDD 25°C 79 dB
ANALOG INPUT BANDWIDTH, FULL POWER
25°C
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 defined as the input being 3 dB above full scale.
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.