max5235 Maxim Integrated Products, Inc., max5235 Datasheet - Page 14

• Manufacturer Part Number: max5235
• Description: Single-supply 3v/5v, Voltage-output, Dual, Precision 12-bit Dacs
• Manufacturer: Maxim Integrated Products, Inc.

Single-Supply 3V/5V, Voltage-Output, Dual,
Precision 12-Bit DACs
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.
14
1111 1111 1 111 (0)
1000 0000 0 001 (0)
1000 0000 0 000 (0)
1111 1111 1 111 (0)
1000 0000 0 001 (0)
1000 0000 0 000 (0)
0111 1111 1 111 (0)
0000 0000 0 000 (0)
0000 0000 0001 (0)
0111 1111 111 (0)
0000 0000 001 (0)
0000 0000 000 (0)
DAC CONTENTS
DAC CONTENTS
MSB
MSB
______________________________________________________________________________________
LSB
LSB
+
V
REF
+
+
+
+
V
V
V
V
-



V
REF
REF
REF
REF
ANALOG OUTPUT
ANALOG OUTPUT
REF
2048
4096
+
+
-
-












V
V
V
V



4095
4096
2049
2047
4096
4096
REF
REF
4096
REF
REF
2048
2048

 ×

1
0V
0V












2047
2048
2048
2048
2047
2048
1 6384

 ×


 ×


 ×


 ×


 =

.
1
1
1 6384
1 6384
1 6384
1 6384
.
.
-
.
.












V
REF
=
V
REF
Figure 3. Simplified DAC Circuit Diagram
Figure 4. SPI/QSPI Interface Connections
Figure 5. Connections for MICROWIRE
REF_
GND
SHOWN FOR ALL ONES ON DAC
2R
MAX5234
MAX5235
MAX5234
MAX5235
2R
D0
R
SCLK
SCLK
DIN
DIN
CS
CS
2R
D9
R
2R
D10
R
SK
SO
MOSI
SCK
I/O
I/O
2R
D11
MICROWIRE
SPI/QSPI
PORT
SS
PORT
5V
121kΩ
77.25kΩ
1kΩ
OUT_