Quad/Octal, 2-Wire Serial 8-Bit DACs
with Rail-to-Rail Outputs
___________________________________________________Pin Configurations (continued)
TOP VIEW
OUT1 1
OUT0 2
REF1 3
N.C. 4
REF0 5
AGND 6
N.C. 7
DGND 8
SCL 9
SDA 10
MAX520
SSOP
20 OUT2
19 OUT3
18 REF2
17 N.C.
16 REF3
15 VDD
14 N.C.
13 AD2
12 AD1
11 AD0
OUT1 1
OUT0 2
REF1 3
REF0 4
DGND 5
AGND 6
SCL 7
SDA 8
OUT4 9
OUT5 10
MAX521
DIP
20 OUT2
19 OUT3
18 REF2
17 REF3
16 REF4
15 VDD
14 AD1
13 AD0
12 OUT7
11 OUT6
OUT1 1
OUT0 2
REF1 3
REF0 4
DGND 5
AGND 6
N.C. 7
SCL 8
N.C. 9
SDA 10
OUT4 11
OUT5 12
MAX521
24 OUT2
23 OUT3
22 REF2
21 REF3
20 N.C.
19 REF4
18 VDD
17 AD1
16 N.C.
15 AD0
14 OUT7
13 OUT6
SO/SSOP
________________________________________________Functional Diagrams (continued)
SDA SCL
REF2 REF1 REF0
8
MAX521
8
8-BIT
SHIFT REGISTER
8
ADDRESS
COMPARATOR
START/STOP
DETECTOR
8
8
DECODE 8
8
8
8
8
INPUT
LATCH 0
1
INPUT
LATCH 1
1
INPUT
LATCH 2
1
INPUT
LATCH 3
1
1
INPUT
LATCH 4
1
INPUT
LATCH 5
1
INPUT
LATCH 6
1
INPUT
LATCH 7
OUTPUT
LATCH 0
OUTPUT
LATCH 1
OUTPUT
LATCH 2
OUTPUT
LATCH 3
OUTPUT
LATCH 4
OUTPUT
LATCH 5
OUTPUT
LATCH 6
OUTPUT
LATCH 7
DAC0
DAC1
DAC2
DAC3
DAC4
DAC5
DAC6
DAC7
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
AD0 AD1
REF3 REF4
______________________________________________________________________________________ 17