MAX4762, MAX4763, MAX4764, MAX4764A, MAX4765 Low-Voltage, Dual SPDT, Audio Clickless Switches with Negative Rail Capability

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The MAX4762–MAX4764/MAX4764A/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-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 µMAX®, TDFN, thin QFN, and UCSP™ packages and operate over the -40°C to +85°C extended temperature range.

Key Features

Applications/Uses

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/MAX4764A/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

	Cell Phones
	MP3 Players
	Notebook Computers
	PDAs and Other Handheld Devices

Key Specifications: Switches and Multiplexers (Low Voltage)

Part Number

Configuration

Number of Channels

V_SUPPLY, Single (min) (V)

V_SUPPLY, Single (max) (V)

R_ON (max) (Ω)

Bandwidth (MHz)

I_{L (OFF)} (max) (nA)

t_ON (max) (nS)

t_OFF (max) (nS)

Q_INJECTION (pC)

C_ON (pF)

C_OFF (pF)

Features

V_ISO, Off-Isolation (dB)

V_CT, Crosstalk (dB)

ΔR_ON (max) (Ω)

R_FLAT(ON) (max) (Ω)

Redundancy Switch

Package

Smallest Available Package (max w/pins) (mm²)

RoHS Available

Price^*

MAX4762

SPDT

1.8

5.5

0.85

150

•	1.8V Logic Compatible

•	High Current

0.1

0.4

THIN QFN (Dual)/10
UCSP/12
uMAX/10

Yes

$1.10 @ 5k

MAX4763

THIN QFN/12
UCSP/12

See Data Sheet

MAX4764

200

THIN QFN (Dual)/10
UCSP/12
uMAX/10

Yes

$1.15 @ 1k

MAX4764A

200

THIN QFN (Dual)/10
UCSP/12
uMAX/10

Yes

$1.15 @ 1k

MAX4765

THIN QFN/12
UCSP/12

See Data Sheet

$1.20 @ 5k

See All Switches and Multiplexers (Low Voltage) (125)

Notes:
^*This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.