ADG438FBR Analog Devices Inc, ADG438FBR Datasheet

ADG438FBR

Manufacturer Part Number

ADG438FBR

Description

IC MULTIPLEXER 8X1 16SOIC

Manufacturer

Analog Devices Inc

Type

Analog Multiplexerr

Datasheet

1.ADG439FBRZ.pdf (8 pages)

Specifications of ADG438FBR

Rohs Status

RoHS non-compliant

Function

Multiplexer

Circuit

1 x 8:1

On-state Resistance

400 Ohm

Current - Supply

0.05mA

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

16-SOIC (0.154", 3.90mm Width)

Package

16SOIC N

Maximum On Resistance

400@Â±15V Ohm

Maximum Propagation Delay Bus To Bus

220@Â±15V ns

Maximum High Level Output Current

20 mA

Multiplexer Architecture

8:1

Maximum Turn-off Time

150@Â±15V ns

Maximum Turn-on Time

250@Â±15V ns

Power Supply Type

Single|Dual

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

ADG438FBR

Quantity:

993

Company:

Meier Automation Equipment Co., Limited

Part Number:

ADG438FBR

Manufacturer:

ADI/亚德诺

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

ADG438FBRN

Manufacturer:

ADI/亚德诺

Quantity:

20 000

Company:

BOSTOCK HK LIMITED

Part Number:

ADG438FBRZ

Manufacturer:

ADI

Quantity:

3 491

Company:

Meier Automation Equipment Co., Limited

Part Number:

ADG438FBRZ

Manufacturer:

ADI/亚德诺

Quantity:

20 000

Current page: 1 of 8
Download datasheet (129Kb)

GENERAL DESCRIPTION

The ADG438F/ADG439F are CMOS analog multiplexers, the

ADG438F comprising 8 single channels and the ADG439F

comprising four differential channels. These multiplexers pro-

vide fault protection. Using a series n-channel, p-channel, n-

channel MOSFET structure, both device and signal source

protection is provided in the event of an overvoltage or power

loss. The multiplexer can withstand continuous overvoltage

inputs from –40 V to +55 V. During fault conditions, the multi-

plexer input (or output) appears as an open circuit and only a

few nanoamperes of leakage current will flow. This protects not

only the multiplexer and the circuitry driven by the multiplexer,

but also protects the sensors or signal sources which drive the

multiplexer.

The ADG438F switches one of eight inputs to a common out-

put as determined by the 3-bit binary address lines A0, A1 and

A2. The ADG439F switches one of four differential inputs to a

common differential output as determined by the 2-bit binary

address lines A0 and A1. An EN input on each device is used to

enable or disable the device. When disabled, all channels are

switched OFF.

REV. D

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

FEATURES

Fast Switching Times

Fault and Overvoltage Protection (–40 V, +55 V)

All Switches OFF with Power Supply OFF

Analog Output of ON Channel Clamped Within Power

Latch-Up Proof Construction

Break Before Make Construction

TTL and CMOS Compatible Inputs

APPLICATIONS

Data Acquisition Systems

Industrial and Process Control Systems

Avionics Test Equipment

Signal Routing Between Systems

High Reliability Control Systems

Supplies If an Overvoltage Occurs

OFF

250 ns max

150 ns max

Fault-Protected Analog Multiplexers

PRODUCT HIGHLIGHTS

1. Fault Protection.

2. ON channel turns OFF while fault exists.

3. Low R

4. Fast Switching Times.

5. Break-Before-Make Switching.

6. Trench Isolation Eliminates Latch-up.

7. Improved OFF Isolation.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

High Performance 4/8 Channel

The ADG438F/ADG439F can withstand continuous volt-

age inputs up to –40 V or +55 V. When a fault occurs due

to the power supplies being turned off, all the channels

are turned off and only a leakage current of a few nano-

amperes flows.

Switches are guaranteed break-before-make so that input

signals are protected against momentary shorting.

A dielectric trench separates the p- and n-channel MOSFETs

thereby preventing latch-up.

Trench isolation enhances the channel-to-channel isolation

of the ADG438F/ADG439F.

DECODER

ADG438F

ON.

A1 A2 EN

1 OF 8

FUNCTIONAL BLOCK DIAGRAMS

ADG438F/ADG439F

World Wide Web Site: http://www.analog.com

S1A

S4A

S1B

S4B

DECODER

ADG439F

1 OF 4

A1 EN

Related parts for ADG438FBR

ADG438FBR Summary of contents

Page 1

FEATURES Fast Switching Times t 250 ns max ON t 150 ns max OFF Fault and Overvoltage Protection (–40 V, +55 V) All Switches OFF with Power Supply OFF Analog Output of ON Channel Clamped Within Power Supplies If ...

Page 2

ADG438F/ADG439F–SPECIFICATIONS Dual Supply ( –15 V, GND = 0 V, unless otherwise noted Parameter +25 C ANALOG SWITCH Analog Signal Range Drift 0 Match 3 ON ...

Page 3

... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Only one absolute maximum rating may be applied at any one time. ORDERING GUIDE Model Temperature Range ADG438FBN – +105 C ADG438FBR – +105 C ADG439FBN – +105 C ADG439FBR – +105 C ADG439FBRW – +105 Plastic DIP ...

Page 4

ADG438F/ADG439F TERMINOLOGY V Most positive power supply potential Most negative power supply potential. SS GND Ground (0 V) reference. R Ohmic resistance between D and variation due to a change in the analog ON ...

Page 5

C 500 +85 C 250 0 –15 –10 – – Volts D S Figure 4. On Resistance as a Function of V Different Temperatures 1m 100 10 1 100n ...

Page 6

ADG438F/ADG439F THEORY OF OPERATION The ADG438F/ADG439F multiplexers are capable of with- standing overvoltages from – +55 V, irrespective of whether the power supplies are present or not. Each channel of the multiplexer consists of an n-channel MOSFET, a ...

Page 7

(ON +2. Test Circuit 4. I (ON THRU S7 A0 ADG438F ...

Page 8

ADG438F/ADG439F ADG438F GND * SIMILAR CONNECTION FOR ADG439F ADG438F GND ...

Related keywords

adg431
adg432
adg436
adg439f
adg439
adg438f
adg438
adg433
adg438fbr
adg436br
adg431br
adg438fbrz
adg438fbn
adg433br
ADG438FBR datasheet
ADG438FBR data sheet
ADG438FBR pdf datasheet
ADG438FBR component
ADG438FBR part
ADG438FBR distributor
ADG438FBR RoHS
ADG438FBR datasheet download