Datasheet

MAX5236/MAX5237
Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 10-Bit DACs
14 ______________________________________________________________________________________
2R 2R 2R 2R 2R
D0 D7 D8 D9
RRR
REF_
GND
OUT_
1kΩ
77.25kΩ
121kΩ
SHOWN FOR ALL ONES ON DAC
Figure 3. Simplified DAC Circuit Diagram
SCLK
DIN
CS
MOSI
SCK
5V
I/O
SPI/QSPI
PORT
SS
MAX5236
MAX5237
Figure 4. SPI/QSPI Interface Connections
SCLK
DIN
CS
SK
SO
I/O
MICROWIRE
PORT
MAX5236
MAX5237
Figure 5. Connections for MICROWIRE
DAC CONTENTS
MSB LSB
ANALOG OUTPUT
1111 1111 1 1 (000)
1000 0000 0 1 (000)
1000 0000 0 0 (000)
0111 1111 1 1 (000)
0000 0000 01 (000)
0000 0000 0 0 (000) 0V
Table 4. Unipolar Code Table
(Gain = 1.6384)
Note: () are for the sub-bit.
Table 5. Bipolar Code Table
Note: () are for the sub-bit.
+






×V
REF
1
1024
1 6384.
+






×V
REF
1023
1024
1 6384.
+






×V
REF
513
1024
1 6384.
+






×=VV
REF REF
512
1024
1 6384.
+






×V
REF
511
1024
1 6384.
DAC CONTENTS
MSB LSB
ANALOG OUTPUT
1111 1111 1 1 (000)
1000 0000 0 1 (000)
1000 0000 0 0 (000) 0V
0111 1111 11 (000)
0000 0000 01 (000)
0000 0000 00 (000)






=VV
REF REF
512
512
--
+






V
REF
511
512
+






V
REF
1
512






V
REF
1
512
-






V
REF
511
512
-