Datasheet

AD9230
Rev. 0 | Page 4 of 32
AC SPECIFICATIONS
1
AVDD = 1.8 V, DRVDD = 1.8 V, T
MIN
= −40°C, T
MAX
= +85°C, f
IN
= −1.0 dBFS, full scale = 1.25 V, DCS enabled, unless otherwise noted.
Table 2.
AD9230-170 AD9230-210 AD9230-250
Parameter
2
Temp Min Typ Max Min Typ Max Min Typ Max Unit
SNR
f
IN
= 10 MHz 25°C 63.8 64.6 63.7 64.5 63.3 64.1 dB
Full 63.5 63.4 62.5 dB
f
IN
= 70 MHz 25°C 63.5 64.3 63.3 64.2 63.0 63.9 dB
Full 63.3 63.1 62.3 dB
f
IN
= 170 MHz
3
25°C 63.5 63.4 63.3 dB
f
IN
= 225 MHz 25°C 63.0 61.5 63.3 dB
SINAD
f
IN
= 10 MHz 25°C 63.7 64.5 63.6 64.4 63.3 64.0 dB
Full 63.4 63.4 62.4 dB
f
IN
= 70 MHz 25°C 63.3 64.1 63.2 64.0 62.9 63.7 dB
Full 63.1 63.0 62.2 dB
f
IN
= 170 MHz
3
25°C 63.3 63.1 63.0 dB
f
IN
= 225 MHz 25°C 61.8 61.1 62.8 dB
EFFECTIVE NUMBER OF BITS (ENOB)
f
IN
= 10 MHz 25°C 10.6 10.6 10.5 Bits
f
IN
= 70 MHz 25°C 10.5 10.5 10.4 Bits
f
IN
= 170 MHz
3
25°C 10.4 10.4 10.3 Bits
f
IN
= 225 MHz 25°C 10.1 10.0 10.3 Bits
WORST HARMONIC (Second or Third)
f
IN
= 10 MHz 25°C −82 −78 −86 −80 −84 −79 dBc
Full −78 −78 −76 dBc
f
IN
= 70 MHz 25°C −78 −76 −80 −77 −79 −76 dBc
Full −75 −75 −75 dBc
f
IN
= 170 MHz
3
25°C −78 −79 −78 dBc
f
IN
= 225 MHz 25°C −68 −70 −75 dBc
WORST OTHER
(SFDR Excluding Second and Third)
f
IN
= 10 MHz 25°C −89 −84 −89 −84 −84 −79 dBc
Full −83 −83 −76 dBc
f
IN
= 70 MHz 25°C −89 −83 −86 −81 −83 −79 dBc
Full −83 −81 −75 dBc
f
IN
= 170 MHz
3
25°C −89 −79 −83 dBc
f
IN
= 225 MHz 25°C −80 −79 −80 dBc
TWO-TONE IMD
140.2 MHz/141.3 MHz @ −7 dBFS 25°C 73 75 78 dBc
170.2 MHz/171.3 MHz @ −7 dBFS 25°C 67 73 dBc
ANALOG INPUT BANDWIDTH 25°C 700 700 700 MHz
1
All ac specifications tested by driving CLK+ and CLK− differentially.
2
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.
3
140 MHz for the AD9230-170 speed grade, 170 MHz for the AD9230-210 and AD9230-250 speed grades.