Datasheet

AD9637 Data Sheet
Rev. A | 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. CLK
divider = 8 used for typical characteristics at input frequency ≥ 19.7 MHz.
Table 2.
Parameter
1
Temp
AD9637-40 AD9637-80
Unit Min Typ Max Min Typ Max
SIGNAL-TO-NOISE RATIO (SNR)
f
IN
= 9.7 MHz 25°C 72.0 71.5 dBFS
f
IN
= 19.7 MHz Full 70.0 72.0 71.0 71.5 dBFS
f
IN
= 30.5 MHz 25°C 71.9 71.5 dBFS
f
IN
= 63.5 MHz 25°C 71.4 dBFS
f
IN
= 69.5 MHz
25°C
71.5
dBFS
f
IN
= 123.5 MHz 25°C 70.5 dBFS
SIGNAL-TO-NOISE AND DISTORTION RATIO (SINAD)
f
IN
= 9.7 MHz 25°C 71.9 71.5 dBFS
f
IN
= 19.7 MHz Full 69.0 71.9 70.0 71.5 dBFS
f
IN
= 30.5 MHz 25°C 71.9 71.5 dBFS
f
IN
= 63.5 MHz 25°C 71.3 dBFS
f
IN
= 69.5 MHz 25°C 71.4 dBFS
f
IN
= 123.5 MHz 25°C 70.4 dBFS
EFFECTIVE NUMBER OF BITS (ENOB)
f
IN
= 9.7 MHz 25°C 11.7 11.6 Bits
f
IN
= 19.7 MHz Full 11.2 11.7 11.3 11.6 Bits
f
IN
= 30.5 MHz 25°C 11.7 11.6 Bits
f
IN
= 63.5 MHz 25°C 11.6 Bits
f
IN
= 69.5 MHz 25°C 11.6 Bits
f
IN
= 123.5 MHz 25°C 11.4 Bits
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
f
IN
= 9.7 MHz 25°C 96 93 dBc
f
IN
= 19.7 MHz Full 78 96 78 92 dBc
f
IN
= 30.5 MHz 25°C 96 92 dBc
f
IN
= 63.5 MHz 25°C 92 dBc
f
IN
= 69.5 MHz 25°C 89 dBc
f
IN
= 123.5 MHz 25°C 88 dBc
WORST HARMONIC (SECOND OR THIRD)
f
IN
= 9.7 MHz 25°C −99 −93 dBc
f
IN
= 19.7 MHz Full −96 −78 −92 −78 dBc
f
IN
= 30.5 MHz 25°C −98 −92 dBc
f
IN
= 63.5 MHz
25°C
−92
dBc
f
IN
= 69.5 MHz 25°C −89 dBc
f
IN
= 123.5 MHz 25°C −88 dBc
WORST OTHER (EXCLUDING SECOND OR THIRD)
f
IN
= 9.7 MHz 25°C −96 −97 dBc
f
IN
= 19.7 MHz Full −98 −86 −97 −86 dBc
f
IN
= 30.5 MHz 25°C −96 −97 dBc
f
IN
= 63.5 MHz 25°C −96 dBc
f
IN
= 69.5 MHz 25°C −97 dBc
f
IN
= 123.5 MHz 25°C −92 dBc
TWO-TONE INTERMODULATION DISTORTION (IMD)—
AIN1 AND AIN2 = −7.0 dBFS
f
IN1
= 8 MHz, f
IN2
= 10 MHz 25°C 93 dBc
f
IN1
= 30 MHz, f
IN2
= 32 MHz 25°C 85 dBc