
MAX5188/MAX5191
Dual, 8-Bit, 40MHz, Current/Voltage,
Alternate-Phase Output DACs
10
______________________________________________________________________________________
CLK
D0–D7
OUT1
N - 2
DAC1
DAC2
DAC1
DAC2
DAC1
DAC2
N - 1
N
N + 1
tDS1
tCH
tCL
tCLK
OUT2
N - 1
N - 2
N
tDS2
tDH1
tDH2
Figure 4. Timing Diagram
9.6k*
IFS
0.1
F
10
F
DVDD
RSET
IREF
REFR
AVDD
REFO
+1.2V
BANDGAP
REFERENCE
REN
CURRENT-
SOURCE ARRAY
EXTERNAL
+1.2V
REFERENCE
*9.6k
REFERENCE CURRENT SET RESISTOR
INTERNAL TO MAX5191 ONLY. USE EXTERNAL
RSET FOR MAX5188.
MAX5188
MAX5191
MAX6520
DGND
AGND
Figure 3. MAX5188/MAX5191 Using an External Reference