
General Description
The MAX4635/MAX4636 are fast, dual 4
single-
pole/double-throw (SPDT) analog switches that operate
with supply voltages from +1.8V to +5.5V. High switch-
ing speeds, 1
on-resistance flatness, and low power
consumption make these devices ideal for audio/video,
communications, and battery-operated devices.
Containing two independently controllable SPDT
switches in 10-pin μMAX and 10-pin 3mm x 3mm thin
QFN packages, the MAX4635/MAX4636 use little board
space, and have low power consumption ensuring min-
imal impact on your power budget. The analog signal
range extends to the supply rails. The MAX4635 has
inverted logic compared to the MAX4636.
________________________Applications
Battery-Powered Equipment
Relay Replacement
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Communications Circuits
Features
o
Guaranteed On-Resistance
4
(max) +5V Supply
5.5
(max) +3V Supply
o
Guaranteed Match Between Channels
0.2
(max)
o
Guaranteed Flatness Over Signal Range
1
(max) with +5V Supply
o
Fast Switching Speeds
14ns (max) Turn-On Time
6ns (max) Turn-Off Time
o
1.8V Operation
100
(typ) On-Resistance Over Temperature
56ns (typ) Turn-On Time
17ns (typ) Turn-Off Time
o
+1.8V to +5.5V Single-Supply Operation
o
Rail-to-Rail
Signal Handling
o
Low Crosstalk: -67dB at 1MHz
o
High Off-Isolation: -65dB at 1MHz
o
THD: 0.1%
M
Fast, Low-Voltage, Dual 4
SPDT
CMOS Analog Switches
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
1
2
3
4
5
10
9
8
7
6
COM1
NO1
V+
NO2
NC2
GND
NC1
IN1
MAX4636
μ
MAX
TOP VIEW
COM2
IN2
1
2
3
4
5
10
9
8
7
6
COM1
NC1
V+
NC2
NO2
GND
NO1
IN1
MAX4635
μ
MAX
COM2
IN2
1
2
3
4
5
10
9
8
7
6
COM1
NO1
V+
NO2
NC2
GND
NC1
IN1
MAX4636
3 x 3 THIN QFN
COM2
IN2
1
2
3
4
5
10
9
8
7
6
COM1
NC1
V+
NC2
NO2
GND
NO1
IN1
MAX4635
3 x 3 THIN QFN
COM2
IN2
0
1
SWITCHES SHOWN FOR "0" INPUT
OFF
ON
ON
OFF
IN_
NO_ TO COM_ NC_ TO COM_
Pin Configuration/Functional Diagram/Truth Table
19-1709; Rev 2; 5/03
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX4635
EUB
MAX4635ETB
-40°C to +85°C
-40°C to +85°C
10 μMAX
10 Thin
QFN (3
3)
—
AAT
MAX4636
EUB
MAX4636ETB
-40°C to +85°C
-40°C to +85°C
10 μMAX
10 Thin
QFN (3
3)
—
AAO
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.