MAX4762 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability

19-3152; Rev 0; 1/04
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
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 0.6Ω 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)
0.6Ω at +2.7V Supply
♦ 0.25Ω On-Resistance Flatness
♦ 0.05Ω 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
Ordering Information
PART
MAX4762ETB
MAX4762EUB
MAX4762EBC-T
TEMP RANGE
PIN-
PACKAGE
-40°C to +85°C 10 TDFN
-40°C to +85°C 10 µMAX
-40°C to +85°C 12 UCSP-12
TOP
MARK
ACG
—
ABU
UCSP is a trademark of Maxim Integrated Products, Inc.
Ordering Information continued at end of data sheet.
Selector Guide appears at end of data sheet.
Pin Configurations/Functional Diagrams/Truth Table
TOP VIEW
(BUMP SIDE DOWN)
MAX4762/MAX4764
MAX4763/MAX4765
C1
B1
A1
NO2
V_CC
NO1
C2
COM2
A2
COM1
C3
A3
NC2
NC1
C4
B4
A4
IN2
GND
IN1
C1
NO2
C2
COM2
C3
NC2
C4
IN2
B1
V_CC
B2
CMPO
B3
CMP-
B4
GND
A1
NO1
A2
COM1
A3
NC1
A4
IN1
UCSP
UCSP
Pin Configurations/Functional Diagrams/Truth Table continued at end of data sheet.
MAX4762–MAX4765
IN_
NO_
NC_
0
OFF
ON
1
ON
OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________ Maxim Integrated Products 1
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.