Datasheet

MAX5477/MAX5478/MAX5479
Dual, 256-Tap, Nonvolatile, I
2
C-Interface,
Digital Potentiometers
______________________________________________________________________________________ 15
MAX6160
IN
5V
OUT
ADJ
GND
HA
LA
WA
V
OUT1
IN
OUT
ADJ
GND
HB
LB
WB
V
OUT2
1/2 MAX5477
1/2 MAX5478
1/2 MAX5479
MAX6160
1/2 MAX5477
1/2 MAX5478
1/2 MAX5479
FOR THE MAX5477
V
OUT_
= 1.23V x
10k
Ω
R
FOR THE MAX5478
V
OUT_
= 1.23V x
50k
Ω
R
FOR THE MAX5479
V
OUT_
= 1.23V x
100k
Ω
R
WHERE R = R
HL
x D / 256
AND D = DECIMAL VALUE OF WIPER CODE
RR
Figure 13. Adjustable Voltage Reference
3
2
5V
7
4
1
6
8
MAX410
HA
LA
WA
R2
R1
HB
LB
WB
1/2 MAX5477
1/2 MAX5477
R
2
= R
HL
x D / 256
WHERE R
HL
= END-TO-END RESISTANCE
AND = D DECIMAL VALUE OF WIPER CODE
Figure 12. Offset Voltage Adjustment Circuit
MAX5477
MAX5478
MAX5479
V
IN
R
2
HB
WB
LB
R
1
V
OUT
R
3
HA
WA
LA
C
MAX410
V+
V-
R
2
, R
3
= R
HL
x D / 256
WHERE R
HL
= END-TO-END RESISTANCE
AND D = DECIMAL VALUE OF WIPER CODE
Figure 11. Programmable Filter
16
1
2
3
4
12
11
10
9
15 14 13
5678
N.C.
HA
WA LA
HB
WB
LB
WP
SCL
SDA
A0
A1
A2
GND
N.C.
V
DD
TOP VIEW
MAX5477
MAX5478
MAX5479
14
13
12
11
10
9
8
1
2
3
4
5
6
7
V
DD
SCL
SDA
A0HB
LA
WA
HA
A1
A2
GNDWP
LB
WB
TSSOP
(4.4mm x 5mm)
THIN QFN
(3mm x 3mm)
MAX5477
MAX5478
MAX5479
++
Pin Configurations Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maxim-ic.com/packages
. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
16 TQFN-EP T1633F+3
21-0136 90-0033
14 TSSOP U14+1
21-0066 90-0113