Datasheet

Data Sheet AD9741/AD9743/AD9745/AD9746/AD9747
Rev. A | Page 5 of 28
AC SPECIFICATIONS
T
MIN
to T
MAX
, AVDD33 = 3.3 V, DVDD33 = 3.3 V, DVDD18 = 1.8 V, CVDD18 = 1.8 V, I
FS
= 20 mA, full-scale digital input, maximum
sample rate, unless otherwise noted.
Table 3. AD9741, AD9743, and AD9745
Parameter
AD9741 AD9743 AD9745
Unit Min Typ Max Min Typ Max Min Typ Max
SPURIOUS FREE DYNAMIC RANGE (SFDR)
f
DAC
= 250 MSPS, f
OUT
= 20 MHz 70 80 82 dBc
f
DAC
= 250 MSPS, f
OUT
= 70 MHz 70 70 70 dBc
f
DAC
= 250 MSPS, f
OUT
= 180 MHz
1
64 64 66 dBc
INTERMODULATION DISTORTION (IMD)
f
DAC
= 250 MSPS, f
OUT
= 20 MHz 80 80 86 dBc
f
DAC
= 250 MSPS, f
OUT
= 70 MHz 80 80 80 dBc
f
DAC
= 250 MSPS, f
OUT
= 180 MHz
1
72 72 74 dBc
CROSSTALK
f
DAC
= 250 MSPS, f
OUT
= 20 MHz 80 80 80 dBc
f
DAC
= 250 MSPS, f
OUT
= 70 MHz 80 80 80 dBc
f
DAC
= 250 MSPS, f
OUT
= 180 MHz
1
80 80 80 dBc
ADJACENT CHANNEL LEAKAGE RATIO (ACLR) SINGLE
CARRIER WCDMA
f
DAC
= 245.76 MSPS, f
OUT
= 15.36 MHz 54 66 76 dBc
f
DAC
= 245.76 MSPS, f
OUT
= 61.44 MHz 54 66 76 dBc
f
DAC
= 245.76 MSPS, f
OUT
= 184.32 MHz
1
54 64 72 dBc
NOISE SPECTRAL DENSITY (NSD)
f
DAC
= 245.76 MSPS, f
OUT
= 15.36 MHz −132 −144 −155 dBm/Hz
f
DAC
= 245.76 MSPS, f
OUT
= 61.44 MHz
−132
−144
−155
dBm/Hz
f
DAC
= 245.76 MSPS, f
OUT
= 184.32 MHz
1
−135 −147 −155 dBm/Hz
1
Mix Mode.