MAX4765

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/MAX4765)
·Low On-Resistance (RON) 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


Application

·Cell Phones
·PDAs and Hand-Held Devices
·Notebook Computers
·MP3 Players


Pinout

Specifications

(All voltages referenced to GND.)
V_CC, IN_, CMP-......................................................-0.3V to +6.0V
COM_, NO_, NC_ ...............................(VCC - 6V) to (VCC + 0.3V)
CMPO.........................................................-0.3V to (VCC + 0.3V)
Closed-Switch Continuous Current COM_, NO_, NC_.....±150mA
Open-Switch Continuous Current NO_, NC_
(MAX4764/MAX4765) .......................................................±30mA
Peak Current COM_, NO_, NC_
(pulsed at 1ms, 50% duty cycle).....................................±300mA
Peak Current COM_, NO_, NC_
(pulsed at 1ms, 10% duty cycle).....................................±400mA
Continuous Power Dissipation (T_A = +70)
10-Pin TDFN (derate 24.4mW/ above +70) ..............1951mW
10-Pin µMAX (derate 5.6mW/ above +70) ..................444mW
12-Bump UCSP (MAX4762/MAX4764)
(derate 5.6mW/ above +70)........................................449mW
12-Bump UCSP (MAX4763/MAX4765)
(derate 6.5mW/ above +70)........................................519mW
12-Pin Thin QFN (derate 16.9mW/ above +70) .........1349mW
ESD Method 3015.7...............................................................±2kV
Operating Temperature Range ...............................-40 to +85
Junction Temperature..........................................................+150
Storage Temperature Range .................................-65 to +150
Lead Temperature (soldering, 10s) .....................................+300
Bump Temperature (soldering)
Infrared (15s) ......................................................................+220
Vapor Phase (60s) ...............................................................+215


Description

The MAX4762MAX4765 dual SPDT (single-pole/doublethrow) 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-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/MAX4765 have an internal shunt switch to automatically discharge any capacitance at the NO and NC connection points. This reduces click-andpop sounds that occur when switching audio signals between precharged points.

The MAX4765 is available in space-saving µMAX, TDFN, thin QFN, and UCSP™ packages and operate over the -40 to +85 extended temperature range.