Rainbow Electronics MAX533 - Manual (Page 15)

MAX533
2.7V, Low-Power, 8-Bit Quad DAC
with Rail-to-Rail Output Buffers
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_________________________________________________________Functional Diagram
MAX533
OUTA
DAC A
DAC B
DAC C
DAC D
REF
DAC
REGISTER A
DECODE
CONTROL
INPUT
REGISTER A
DAC
REGISTER B
INPUT
REGISTER B
DAC
REGISTER C
INPUT
REGISTER C
DAC
REGISTER D
INPUT
REGISTER D
12-BIT
SHIFT
REGISTER
SR
CONTROL
CS DIN SCLK
OUTB
OUTC
OUTD
DOUT LDAC CLR V DD PDE DGND AGND UPO
OUTC
OUTD
AGND
OUTB
OUTA
REF
SYSTEM GND
Figure 10. Suggested PC Board Layout for Minimizing
Crosstalk (Bottom View)
DAC A
DAC B
DAC C
DAC D
REFAB
MAX533
OUTA
OUTB
OUTC
OUTD
SERIAL
INTERFACE
NOT SHOWN
REFERENCE INPUT
2
1
16
15
V DD
+3V
3 13
14 12
AGND DGND
Figure 11. Unipolar Output Circuit