LF13509M

更新时间： 2024-11-20 22:47:11

品牌	Logo	应用领域
美国国家半导体 - NSC		复用器
页数	文件大小	规格书
16页	336K
描述
8-Channel Analog Multiplexer

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LF13509M 数据手册

January 1995

LF13508 8-Channel Analog Multiplexer

LF13509 4-Channel Differential Analog Multiplexer

General Description

The LF13508 is an 8-channel analog multiplexer which con-

nects the output to 1 of the 8 analog inputs depending on

the state of a 3-bit binary address. An enable control allows

disconnecting the output, thereby providing a package se-

lect function.

analog inputs to one of any 4 pairs of independent analog

outputs. The device has all the features of the LF13508

series and should be used whenever differential analog in-

puts are required.

Features

This device is fabricated with National’s BI-FET technology

which provides ion-implanted JFETs for the analog switch

on the same chip as the bipolar decode and switch drive

circuitry. This technology makes possible low constant

‘‘ON’’ resistance with analog input voltage variations. This

device does not suffer from latch-up problems or static

charge blow-out problems associated with similar CMOS

parts. The digital inputs are designed to operate from both

TTL and CMOS levels while always providing a definite

break-before-make action.

JFET switches rather than CMOS

No static discharge blow-out problem

No SCR latch-up problems

Analog signal range 11V, 15V

Constant ‘‘ON’’ resistance for analog signals between

11V and 11V

‘‘ON’’ resistance 380 X typ

Digital inputs compatible with TTL and CMOS

Output enable control

The LF13509 is a 4-channel differential analog multiplexer.

A 2-bit binary address will connect a pair of independent

2 ms typ

Break-before-make action: t

OFF

0.2 ms; t

Lower leakage devices available

Functional Diagrams and Truth Tables

LF13508

SWITCH

NONE

LF13509

SWITCH

EN A1 A0

PAIR ON

None

TL/H/5668–1

1995 National Semiconductor Corporation

TL/H/5668

RRD-B30M115/Printed in U. S. A.

12 3 4 5 6 7...16

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