MAX5188/MAX5191
Dual, 8-Bit, 40MHz, Current/Voltage,
Alternate-Phase Output DACs
6 _______________________________________________________________________________________
40
70
60
50
80
90
100
10 302515 20 35 40 45 50 55 60
MAX5188/91-19
CLOCK FREQUENCY (MHz)
SFDR (dBc)
SPURIOUS-FREE DYNAMIC RANGE
vs. CLOCK FREQUENCY
DAC2
DAC1
500 1100 1300700 900 1500 1700 1900 2100 2300
MAX5188/91-20
OUTPUT FREQUENCY (kHz)
SFDR (dBc)
SPURIOUS-FREE DYNAMIC RANGE vs. OUTPUT
FREQUENCY AND CLOCK FREQUENCY, DAC1
66
70
68
74
72
76
78
f
CLK
= 30MHz
f
CLK
= 60MHz
f
CLK
= 10MHz
f
CLK
= 40MHz
f
CLK
= 50MHz
f
CLK
= 20MHz
66
72
70
68
74
76
78
500 1100 1300700 900 1500 1700 1900 2100 2300
MAX5188/91-21
OUTPUT FREQUENCY (kHz)
SFDR (dBc)
SPURIOUS-FREE DYNAMIC RANGE vs. OUTPUT
FREQUENCY AND CLOCK FREQUENCY, DAC2
f
CLK
= 30MHz
f
CLK
= 60MHz
f
CLK
= 10MHz
f
CLK
= 50MHz f
CLK
= 40MHzf
CLK
= 20MHz
62.5
62.0
61.0
60.5
61.5
60.0
0 1500500 1000 2000 2500
SIGNAL-TO-NOISE PLUS DISTORTION
vs. OUTPUT FREQUENCY
MAX5188/91-23
OUPUT FREQUENCY (kHz)
SINAD (dB)
DAC2
DAC1
-120
-50
-40
-60
-80
-70
-30
-20
-10
0
0862 4 10 12 14 16 18 20
MAX5188/91-24
OUTPUT FREQUENCY (MHz)
SFDR (dBc)
MULTITONE SPURIOUS-FREE DYNAMIC
RANGE vs. OUTPUT FREQUENCY
60
62
64
66
68
70
72
74
0.50 0.75 1.00 1.25 1.50
SPURIOUS-FREE DYNAMIC RANGE
vs. FULL-SCALE OUTPUT CURRENT
MAX5188/91-26
FULL-SCALE OUTPUT CURRENT (mA)
SFDR (dBc)
Typical Operating Characteristics (continued)
(AV
DD
= DV
DD
= +3V, AGND = DGND = 0, 400Ω differential output, I
FS
= 1mA, C
L
= 5pF, T
A
= +25°C, unless otherwise noted.)
