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General Description
The MAX4762–MAX4764/MAX4764A/MAX4765 dual
SPDT (single-pole/double-throw) switches feature nega-
tive 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-resistance, 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/MAX4764A/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
MAX, TDFN, thin QFN, and UCSP packages and
operate over the -40°C to +85°C extended tempera-
ture range.
Applications
Cell Phones
PDAs and Handheld Devices
Notebook Computers
MP3 Players
Features
Distortion-Free Negative Signal Throughput Down
to VCC - 5.5V
Comparator for Headphone or Mute Detection
(MAX4763/MAX4765)
Internal Shunt Resistor Reduces Click/Pop
(MAX4764/MAX4764A/MAX4765)
Low On-Resistance (RON)
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 MAX, TDFN, Thin QFN, and UCSP
Packages
MAX4762–MAX4764/MAX4764A/MAX4765
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
________________________________________________________________ Maxim Integrated Products
1
NC1
NC2
IN1
IN2
NO1
COM1
COM2
NO2
VCC
GND
TOP VIEW
IN_
0
1
NO_
MAX4762–MAX4764/
MAX4764A/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
C2
C3
C4
B4
A4
A3
A2
A1
B1
(BUMP SIDE DOWN)
B2
B3
NO2
VCC
NO1
COM2
COM1
NC1
CMP-
NC2
IN2
GND
IN1
CMPO
Pin Configurations/Functional Diagrams/Truth Table
Ordering Information
19-3152; Rev 2; 1/06
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.
Pin Configurations/Functional Diagrams/Truth Table continued at end of data sheet.
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX4762ETB
-40°C to +85°C
10 TDFN
ACG
MAX4762EUB
-40°C to +85°C
10 MAX
—
MAX4762EBC-T
-40°C to +85°C
12 UCSP-12
ABU
Ordering Information continued at end of data sheet.
Selector Guide appears at end of data sheet.
MAX is a registered trademark and UCSP is a trademark of
Maxim Integrated Products, Inc.