Datasheet

MAX5851
Dual, 8-Bit, 80Msps, Current-Output DAC
8 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(AV
DD
= DV
DD
= CV
DD
= 3V, AGND = DGND = CGND = 0, external reference, I
FS
= 20mA, differential output, differential clock,
T
A
= +25°C, unless otherwise noted.)
SINGLE-TONE SFDR
(f
CLK
= 80MHz, 10MHz WINDOW)
MAX5851 toc10a
f
OUT
(MHz)
AMPLITUDE (dBm)
141311 12789106
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
515
f
OUT
= 9.941MHz
A
OUT
= -1dBFS
SINGLE-TONE SFDR
(f
CLK
= 80MHz, NYQUIST WINDOW)
MAX5851 toc10b
f
OUT
(MHz)
AMPLITUDE (dBm)
4MHz/div
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-120
040
f
OUT
= 9.9359MHz
A
OUT
= -1dBFS
SINGLE-TONE SFDR
(f
CLK
= 25MHz, 2MHz WINDOW)
MAX5851 toc12
f
OUT
(MHz)
AMPLITUDE (dBm)
1.91.61.1 1.40.6 0.90.4
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
0.1 2.1
f
OUT
= 0.9949MHz
A
OUT
= -1dBFS
SINGLE-TONE SFDR
(f
CLK
= 44MHz, 2.5MHz WINDOW)
MAX5851 toc11
f
OUT
(MHz)
AMPLITUDE (dBm)
5.85.34.84.3
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
3.8 6.3
f
OUT
= 4.9736MHz
A
OUT
= -1dBFS
EIGHT-TONE SFDR PLOT
(f
CLK
= 80MHz, 15MHz WINDOW)
MAX5851 toc09
f
OUT
(MHz)
AMPLITUDE (dBm)
18.515.512.59.5
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
6.5 21.5
f
T4
f
T3
f
T2
f
T1
f
T5
f
T6
f
T7
f
T8
f
T1
= 10.6836MHz
f
T2
= 11.5820MHz
f
T3
= 12.3292MHz
f
T4
= 13.2227MHz
f
T5
= 14.8633MHz
f
T6
= 15.5664MHz
f
T7
= 16.3867MHz
f
T8
= 17.2461MHz