Rainbow Electronics MAX5189 - Manual (Page 6)

MAX5186/MAX5189
Dual, 8-Bit, 40MHz, Current/Voltage,
Simultaneous-Output DACs
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(AV DD = DV DD = +3V, AGND = DGND = 0, 400 Ω differential output, I
FS = 1mA, C L = 5pF, T A = +25°C, unless otherwise noted.)
40
70
60
50
80
90
100
10 30 25 15 20 35 40 45 50 55 60
MAX5186/9toc18
CLOCK FREQUENCY (MHz)
SPURIOUS-FREE DYNAMIC RANGE (dBc)
SPURIOUS-FREE DYNAMIC RANGE
vs. CLOCK FREQUENCY
DAC2
DAC1
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
0 2 4 6 8 10 12 14 16 18 20
FFT PLOT, DAC1
MAX5186/9toc16
OUTPUT FREQUENCY (MHz)
dBc
f OUT = 2.2MHz
f CLK = 40MHz
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
0 2 4 6 8 10 12 14 16 18 20
FFT PLOT, DAC2
MAX5186/9toc17
OUTPUT FREQUENCY (MHz)
dBc
f OUT = 2.2MHz
f CLK = 40MHz
60
62
64
66
68
70
72
74
0.5 0.75 1.0 1.25 1.5
SPURIOUS-FREE DYNAMIC RANGE
vs. FULL-SCALE OUTPUT CURRENT
MAX5186/89-21
FULL-SCALE OUTPUT CURRENT (mA)
SFDR (dBc)
66
70
68
76
74
72
78
500 1100 1300 700 900 1500 1700 1900 2100 2300
MAX5186/9toc19
OUTPUT FREQUENCY (kHz)
SFDR (dBc)
SPURIOUS-FREE DYNAMIC RANGE vs. OUTPUT
FREQUENCY AND CLOCK FREQUENCY, DAC1
f CLK = 50MHz
f CLK = 60MHz
f CLK = 20MHz
f CLK = 40MHz
f CLK = 10MHz
f CLK = 30MHz
66
72
70
68
74
76
78
500 1100 1300 700 900 1500 1700 1900 2100 2300
MAX5186/9toc20
OUTPUT FREQUENCY (kHz)
SFDR (dBc)
SPURIOUS-FREE DYNAMIC RANGE vs. OUTPUT
FREQUENCY AND CLOCK FREQUENCY, DAC2
f
CLK
= 30MHz
f CLK = 10MHz
f CLK = 50MHz
f CLK = 60MHz
f CLK = 40MHz
f CLK = 20MHz
62.5
62.0
61.0
60.5
61.5
60.0
0 1500 500 1000 2000 2500
SIGNAL-TO-NOISE PLUS DISTORTION
vs. OUTPUT FREQUENCY
MAX5186/9toc22
OUTPUT FREQUENCY (kHz)
SINAD (dB)
DAC2
DAC1
0 10 7.5 2.5 5 12.5 15 17.5
MAX5186/9toc23
OUTPUT FREQUENCY (MHz)
SFDR (dBc)
MULTITONE
SPURIOUS-FREE DYNAMIC RANGE
vs. OUTPUT FREQUENCY
-120
-90
-110
-60
-70
-40
-50
-30
-10
-20
0
-80
-100