Maxim > Products > Analog Switches and Multiplexers > MAX4740, MAX4740H

MAX4740, MAX4740H

Quad SPDT Audio Switches

Pin-to-Pin Compatible with the ST Microelectronics Quad SPDT Analog Switch STG3699

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX4740/MAX4740H low on-resistance (0.61Ω typ) analog switches operate from a single 1.6V to 5.5V supply. The MAX4740/MAX4740H are quad, single-pole, double-throw (SPDT) switches and are configured to route audio signals. The MAX4740/MAX4740H are pin-to-pin compatible parts with the ST Microelectronics quad SPDT STG3699 analog switch.

The MAX4740 is a quad SPDT switch and the MAX4740H is a quad SPDT switch that can be placed in a high-impedance mode. Switching logic is controlled by 2 control bits (CB1 and CB2). The MAX4740/MAX4740H also feature a low on-resistance match (0.06Ω) and low power-supply current (0.3µA), which increases battery life.

The MAX4740/MAX4740H are available in a tiny 3mm x 3mm, 16-pin TQFN-EP, and 2.5mm x 2.5mm, 16-pin ultra-thin QFN packages.

Data Sheet

Download	Rev 1	(PDF, 228kB)
E-Mail

Key Features

Low On-Resistance (0.61Ω typ)
0.06Ω (typ) Channel-to-Channel Matching
0.32Ω (typ) On-Resistance Flatness
1.6V to 5.5V Single-Supply Voltage
High PSRR Reduces Supply Noise (-60dB typ)
0.08% Total Harmonic Distortion
-68dB typ Crosstalk (100kHz)
-64dB typ Off-Isolation (100kHz)
Low Supply Current (0.3µA typ)
Low Leakage Current (0.1µA typ)
Pin-to-Pin Compatible with ST Micro STG3699
(3mm x 3mm) 16-Pin TQFN, and (2.5mm x 2.5mm) 16-Pin Ultra-Thin QFN Packages

Applications/Uses

Cellular Phones
Notebook Computers
PDAs and Other Handheld Devices

Key Specifications:

Switches and Multiplexers (Low Voltage)

Part Number

Config.

Channels

V_SUPPLY (Single)
(V)

V_SIGNAL
(V)

Dynamic Range (max)
(V)

R_ON
(Ω)

R_FLAT(ON)

BW
(MHz)

t_ON
(ns)

t_OFF
(ns)

Q_INJECTION
(pC)

C_ON
(pF)

C_OFF
(pF)

Budgetary Price

min

max

min

max

typ

min

max

See Notes

MAX4740

DPDT

1.6

5.5

0.9

0.32

210

450

150

$1.95 @1k

MAX4740H

$1.95 @1k

See All Switches and Multiplexers (Low Voltage) (186)

Pricing 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.

Diagram

Typical Operating Circuit

More Information

Topmark Coding

MAX4740

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-0558 Rev 1; 2008-03-28
This page last modified: 2011-02-16