MAX4717 Просмотр технического описания (PDF) - Maxim Integrated

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MAX4717

4.5Ω/20Ω, 300MHz Bandwidth, Dual SPDT Analog Switches in UCSP

Maxim Integrated 

19-2627; Rev 2; 9/05

4.5Ω/20Ω, 300MHz Bandwidth, Dual SPDT

Analog Switches in UCSP

General Description

The MAX4717/MAX4718 low-voltage, low on-resistance

(RON), dual single-pole/double throw (SPDT) analog

switches operate from a single +1.8V to +5.5V supply.

These devices are designed for USB 1.1 and audio

switching applications.

The MAX4717 features two 4.5Ω RON (max) SPDT

switches with 1.2Ω flatness and 0.3Ω matching between

channels. The MAX4718 features one 4.5Ω RON (max)

SPDT switch and one 20Ω RON (max) SPDT switch. The

20Ω switch has a guaranteed matching and flatness of

0.4Ω and 1.2Ω, respectively. These switches offer break-

before-make switching (1ns) with tON <80ns and tOFF

<40ns at +2.7V. The digital logic inputs are +1.8V logic

compatible with a +2.7V to +3.6V supply.

These switches are packaged in a chip-scale package

(UCSP™), significantly reducing the required PC board

area. The chip occupies only a 2.0mm ✕ 1.50mm area

and has a 4 ✕ 3 bump array with a bump pitch of 0.5mm.

These switches are also available in 10-pin µMAX® and

10-pin TDFN packages.

Applications

USB 1.1 Signal Switching Circuits

Battery-Operated Equipment

Audio/Video-Signal Routing

Headphone Switching

Low-Voltage Data-Acquisition Systems

Sample-and-Hold Circuits

Cell Phones

PDAs

UCSP is a trademark of Maxim Integrated Products, Inc.

µMAX is a registered trademark of Maxim Integrated Products, Inc.

Features

♦ USB 1.1 Signal Switching Compliant

(TID = 4000231)

♦ 2ns (max) Differential Skew

♦ -3dB Bandwidth: > 300MHz

♦ Low 15pF On-Channel Capacitance

♦ Single-Supply Operation from +1.8V to +5.5V

♦ 4.5Ω RON (max) Switches (MAX4717/MAX4718)

0.3Ω (max) RON Match (+3.0V Supply)

1.2Ω (max) Flatness (+3.0V Supply)

♦ 20Ω RON (max) Switch (MAX4718)

0.4Ω (max) RON Match (+3.0V Supply)

1.2Ω (max) Flatness (+3.0V Supply)

♦ Rail-to-Rail Signal Handling

♦ High Off-Isolation: -55dB (10MHz)

♦ Low Crosstalk: -80dB (10MHz)

♦ Low Distortion: 0.03%

♦ +1.8V CMOS-Logic Compatible

♦ < 0.5nA Leakage Current at +25°C

Ordering Information

PART

TEMP RANGE

PIN/BUMP-

PACKAGE

MAX4717EUB

MAX4717ETB

-40°C to +85°C 10 µMAX

-40°C to +85°C 10 TDFN-EP*

MAX4717EBC-T

MAX4718EUB

-40°C to +85°C 12 UCSP-12

-40°C to +85°C 10 µMAX

MAX4718ETB

-40°C to +85°C 10 TDFN-EP*

MAX4718EBC-T -40°C to +85°C 12 UCSP-12

*EP = Exposed paddle.

TOP

MARK

—

ACV

ABH

—

ACW

ABI

Pin Configurations/Functional Diagrams/Truth Tables

TOP VIEW

(BUMP SIDE DOWN)

MAX4717/MAX4718

GND

MAX4717/MAX4718

NC1 C1

B1

A1 NC2

V+ 1

10 NO2

IN1 C2

COM1 C3

A2 IN2

NO1 2

COM1 3

A3 COM2

IN1 4

9 COM2

8 IN2

7 NC2

NO1 C4

B4

A4 NO2

NC1 5

6 GND

V+

UCSP

TDFN

PART

MAX4717

MAX4718

SPDT1

4.5Ω

4.5Ω

SPDT2

4.5Ω

20Ω

MAX4717/MAX4718

IN_

NO_

NC_

0

OFF

ON

1

ON

OFF

SWITCHES SHOWN FOR LOGIC "0" INPUT

MAX4717/MAX4718

V+ 1

NO1 2

COM1 3

IN1 4

NC1 5

10 NO2

9 COM2

8 IN2

7 NC2

6 GND

µMAX

________________________________________________________________ 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.

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