
General Description
The MAX4762–MAX4765 dual SPDT (single-pole/double-
throw) switches feature negative signal capability that
allows signals below ground to pass through without
distortion. These analog switches operate from a single
+1.8V to +5.5V supply and have low 0.6
on-resis-
tance, making them ideal for switching audio signals.
The MAX4763/MAX4765 include a comparator that can
be used for headphone detection or a mute/send key
function. The MAX4764/MAX4765 have an internal shunt
switch to automatically discharge any capacitance at the
NO and NC connection points. This reduces click-and-
pop sounds that occur when switching audio signals
between precharged points.
These SPDT switches are available in space-saving
μMAX, TDFN, thin QFN, and UCSP
packages and oper-
ate over the -40°C to +85°C extended temperature range.
Applications
Cell Phones
PDAs and Hand-Held Devices
Notebook Computers
MP3 Players
Features
Distortion-Free Negative Signal Throughput Down
to V
CC
- 5.5V
Comparator for Headphone or Mute Detection
(MAX4763/MAX4765)
Internal Shunt Resistor Reduces Click/Pop
(MAX4764/MAX4765)
Low On-Resistance (R
ON
)
0.6
at +2.7V Supply
0.25
On-Resistance Flatness
0.05
On-Resistance Matching
+1.8V to +5.5V Supply Voltage
-70dB Crosstalk (100kHz)
-65dB Off-Isolation (100kHz)
0.01% Total Harmonic Distortion
Available in μMAX, TDFN, Thin QFN, and UCSP
Packages
M
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
________________________________________________________________
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
NC1
NC2
IN1
IN2
NO1
COM1
COM2
NO2
V
CC
GND
TOP VIEW
IN_
0
1
NO_
MAX4762–MAX4765
OFF
ON
NC_
ON
SWITCHES SHOWN FOR LOGIC "0" INPUT
OFF
UCSP
MAX4762/MAX4764
C1
C2
C3
C4
B4
A4
A3
A2
A1
B1
UCSP
MAX4763/MAX4765
C1
NO2
C2
C3
NC2
C4
IN2
B4
GND
A4
IN1
A3
NC1
A2
A1
NO1
B1
V
CC
(BUMP SIDE DOWN)
B2
B3
COM2
COM1
CMP-
CMPO
Pin Configurations/Functional Diagrams/Truth Table
Ordering Information
19-3152; Rev 0; 1/04
Pin Configurations/Functional Diagrams/Truth Table continued at end of data sheet.
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX4762
ETB
MAX4762EUB
MAX4762EBC-T
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
10 TDFN
10 μMAX
12 UCSP-12
ACG
—
ABU
Ordering Information continued at end of data sheet.
Selector Guide appears at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.