MAX4762ETB ,Low-Voltage / Dual SPDT / Audio Clickless Switches with Negative Rail CapabilityELECTRICAL CHARACTERISTICS(V = +2.7V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical ..
MAX4762ETB+ ,Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail CapabilityMAX4762–MAX4764/MAX4764A/MAX476519-3152; Rev 2; 1/06Low-Voltage, Dual SPDT, Audio ClicklessSwitches ..
MAX4762ETB+T ,Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail CapabilityELECTRICAL CHARACTERISTICS(V = +2.7V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical ..
MAX4762EUB+ ,Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail CapabilityELECTRICAL CHARACTERISTICS(V = +2.7V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical ..
MAX4764AETB+T ,Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail CapabilityELECTRICAL CHARACTERISTICS(V = +2.7V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical ..
MAX4764EBC ,Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail CapabilityELECTRICAL CHARACTERISTICS(V = +2.7V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical ..
MAX8877EUK18+T ,Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
MAX8877EUK18+T ,Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
MAX8877EUK25+T ,Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
MAX8877EUK25-T ,Low-noise, low-dropout, 150mA linear regulator with '2982 pinout. Preset output voltage 2.50V.
MAX8877EUK28+T ,Low-Noise, Low-Dropout, 150mA Linear Regulators with '2982 Pinout
MAX8877EUK28-T ,Low-noise, low-dropout, 150mA linear regulator with '2982 pinout. Preset output voltage 2.80V.
MAX4762ETB-MAX4764ETB-MAX4764EUB
Low-Voltage / Dual SPDT / Audio Clickless Switches with Negative Rail Capability
General DescriptionThe 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 0.6Ωon-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.
ApplicationsCell Phones
PDAs and Hand-Held Devices
Notebook Computers
MP3 Players
FeaturesDistortion-Free Negative Signal Throughput Down
to VCC- 5.5VComparator for Headphone or Mute Detection
(MAX4763/MAX4765)Internal Shunt Resistor Reduces Click/Pop
(MAX4764/MAX4765)Low On-Resistance (RON)
0.6Ωat +2.7V Supply0.25ΩOn-Resistance Flatness0.05ΩOn-Resistance Matching+1.8V to +5.5V Supply Voltage-70dB Crosstalk (100kHz)-65dB Off-Isolation (100kHz)0.01% Total Harmonic DistortionAvailable in µMAX, TDFN, Thin QFN, and UCSP
Packages
MAX4762–MAX4765
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
Pin Configurations/Functional Diagrams/Truth Table
Ordering Information19-3152; Rev 0; 1/04
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.
MAX4762–MAX4765
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VCC= +2.7V to +5.5V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VCC= +3.0V, TA= +25°C, unless otherwise
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(All voltages referenced to GND.)
VCC, 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 (TA= +70°C)
10-Pin TDFN (derate 24.4mW/°C above +70°C).......1951mW
10-Pin µMAX (derate 5.6mW/°C above +70°C)...........444mW
12-Bump UCSP (MAX4762/MAX4764)
(derate 5.6mW/°C above +70°C).............................449mW
12-Bump UCSP (MAX4763/MAX4765)
(derate 6.5mW/°C above +70°C).............................519mW
12-Pin Thin QFN (derate 16.9mW/°C above +70°C)....1349mW
ESD Method 3015.7.............................................................±2kV
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Bump Temperature (soldering)
Infrared (15s)...............................................................+220°C
Vapor Phase (60s).......................................................+215°C
MAX4762–MAX4765
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
ELECTRICAL CHARACTERISTICS (continued)(VCC= +2.7V to +5.5V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VCC= +3.0V, TA= +25°C, unless otherwise
MAX4762–MAX4765
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
ELECTRICAL CHARACTERISTICS (continued)(VCC= +2.7V to +5.5V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VCC= +3.0V, TA= +25°C, unless otherwise
Note 1: UCSP and TDFN parts are 100% tested at TA= +25°C only, and guaranteed by design over the specified temperature range.
Thin QFN parts are 100% tested at TA= +85°C only, and guaranteed by design over the specified temperature range.
Note 2: Signals on COM_, NO_, or NC_ exceeding VCCare clamped by internal diodes. Limit forward-diode current to maximum
current rating.
Note 3: Thin QFN and UCSP are guaranteed by design; not production tested.
Note 4:ICOMfor UCSP is 10mA.
Note 5:∆RON= RON(MAX)- RON(MIN).
Note 6:Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 7: MAX4764/MAX4765 have an internal shunt switch when in off-state, which determines OFF current.
Note 8:Leakage parameters are 100% tested at maximum-rated hot operating temperature and guaranteed by design at TA= +25°C.
Note 9: UCSP parts are guaranteed by design.
Note 10:Off-isolation = 20log10(VCOM/ VNO), VCOM= output, VNO= input to off switch.
MAX4762–MAX4765
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
Typical Operating Characteristics(VCC= 3.0V, TA = +25°C, unless otherwise noted.)
MAX4762–MAX4765
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
Typical Operating Characteristics (continued)(VCC= 3.0V, TA = +25°C, unless otherwise noted.)
MAX4762–MAX4765
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
MAX4762–MAX4765
Detailed DescriptionThe MAX4762–MAX4765 are low on-resistance, low-
voltage, dual SPDT analog switches that operate from a
+1.8V to +5.5V supply and are fully specified for nomi-
nal 3.0V applications. The devices feature a negative
signal capability that allows signals below ground to
pass through without distortion and have break-before-
make switching.
The MAX4763/MAX4765 feature a comparator that can be
used for headphone or mute detection. The comparator
threshold is internally generated to be approximately 1/3
of VCC. The MAX4764/MAX4765 feature an internal shunt
switch to discharge any capacitance at the NO and NC
connection points. This reduces the click-and-pop sounds
that occur when switching audio signals.
Applications Information
Digital Control InputsThe MAX4762–MAX4765 logic inputs accept up to
+5.5V, regardless of supply voltage. For example, with a
+3.3V supply, IN_ can be driven low to GND and high to
+5.5V allowing for mixing of logic levels in a system.
Driving IN_ Rail-to-Rail®minimizes power consumption.
For a +1.8V supply voltage, the logic thresholds are
0.5V (low) and 1.4V (high); for a +5V supply voltage, the
logic thresholds are 0.8V (low) and 2.0V (high).
Analog Signal LevelsThe on-resistance of the MAX4762–MAX4765 changes
very little for analog input signals across the entire supply
voltage range (see the Typical Operating Characteristics).
The switches are bidirectional, so the NO_, NC_, and
COM_ pins can be either inputs or outputs.
The MAX4762–MAX4765 pass signals as low as VCC-
5.5V, including signals below ground with minimal
distortion.
Comparator (MAX4763/MAX4765)The MAX4763/MAX4765 include a comparator that can
be used for mute and headphone detection functions.
The positive terminal of the comparator is internally set to
VCC / 3. When the negative terminal (CMP-) is below the
threshold, the comparator output (CMPO) is a logic high.
When CMP- rises above VCC / 3, CMPO is a logic low.
The comparator threshold of VCC / 3 allows for detection
of headphones because headphone audio signals are
typically biased to VCC / 2.
Shunt Switch (MAX4764/MAX4765)The 100Ωshunt switches on the MAX4764/MAX4765
automatically discharge any capacitance at the NC_ or
NO_ terminals when they are unconnected to COM_.
This reduces audible click-and-pop sounds that occur
when switching between audio sources.
Audible clicks and pops are caused when a step DC
voltage is switched into the speaker. By automatically
discharging the side that is not connected, any residual
DC voltage is removed, thereby reducing the clicks
and pops.
Power-Supply Sequencing and
Overvoltage Protection
Caution: Do not exceed the absolute maximum ratings
since stresses beyond the listed ratings may cause
permanent damage to the device.Proper power-supply sequencing is recommended for
all CMOS devices. Always apply VCCbefore applying
analog signals, especially if the analog signal is not
current-limited.
UCSP Applications InformationFor the latest application details on UCSP construction,
dimensions, tape carrier information, printed circuit board
techniques, bump-pad layout, and recommended reflow
temperature profile, as well as the latest information on
reliability testing results, go to the Maxim’s website at
/ucsp and search for the Application
Note, “UCSP—A Wafer-Level Chip-Scale Package.”
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
