Low-Voltage, CMOS Analog
Multiplexers/Switches
MAX4581/MAX4582/MAX4583
Pin Description
PIN
MAX4581
DIP, SO,
TSSOP
13, 14,
15, 12,
1, 5, 2, 4
3
—
—
—
—
—
—
—
—
—
—
16
11
10
9
8
QFN
11, 12,
13, 10,
15, 3,
16, 2
1
—
—
—
—
—
—
—
—
—
—
14
9
8
7
6
MAX4582
DIP, SO,
TSSOP
QFN
MAX4583
DIP, SO,
TSSOP
QFN
NAME
FUNCTION
—
—
—
—
X0–X7
Analog Switch Inputs 0–7
13
12, 14,
15, 11
1, 5, 2,
4
3
—
—
—
—
—
—
—
16
10
9
—
8
11
10, 12,
13, 9
15, 3,
16, 2
1
—
—
—
—
—
—
—
14
8
7
—
6
14
—
—
15
13
12
1
2
3
5
4
16
11
10
9
8
12
—
—
13
11
10
15
16
1
3
2
14
9
8
7
6
X
X0, X1,
X2, X3
Y0, Y1,
Y2, Y3
Y
X1
X0
Y1
Y0
Z1
Z0
Z
V
CC
A
B
C
GND
Analog Switch “X” Output
Analog Switch “X” Inputs 0–3
Analog Switch “Y” Inputs 0–3
Analog Switch “Y” Output
Analog Switch “X” Normally Open Input
Analog Switch “X” Normally Closed Input
Analog Switch “Y” Normally Open Input
Analog Switch “Y” Normally Open Input
Analog Switch “Z” Normally Open Input
Analog Switch “Z” Normally Open Input
Analog Switch “Z” Output
Positive Analog and Digital Supply-Voltage
Input
Digital Address “A” Input
Digital Address “B” Input
Digital Address “C” Input
Ground. Connect to digital ground. (Analog
signals have no ground reference; they are
limited to V
CC
and V
EE
.)
Negative Analog Supply-Voltage Input.
Connect to GND for
single-supply operation.
Digital Enable Input. Normally connected to
GND.
7
5
7
5
7
5
V
EE
6
4
6
4
6
4
ENABLE
Note:
Input and output pins are identical and interchangeable. Any may be considered an input or output; signals pass equally well
in both directions.
__________Applications Information
Power-Supply Considerations
Overview
The MAX4581/MAX4582/MAX4583 construction is typi-
cal of most CMOS analog switches. They have three
8
supply pins: V
CC
, V
EE
, and GND. V
CC
and V
EE
are used
to drive the internal CMOS switches and set the limits of
the analog voltage on any switch. Reverse ESD-
protection diodes are internally connected between
each analog-signal pin and both V
CC
and V
EE
. If any
analog signal exceeds V
CC
or V
EE
, one of these diodes
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