MAX378EWG

更新时间： 2024-09-14 22:55:23

品牌	Logo	应用领域
美信 - MAXIM		复用器
页数	文件大小	规格书
12页	106K
描述
High-Voltage, Fault-Protected Analog Multiplexers

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替代型号

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MAX378EWG 数据手册

19-1902; Rev 1; 8/94

Hig h -Vo lt a g e , Fa u lt -P ro t e c t e d

An a lo g Mu lt ip le x e rs

8/MAX379

_______________Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

♦ Fault Input Voltage ±75V with Power Supplies Off

♦ Fault Input Voltage ±60V with ±15V Power Supplies

♦ All Switches Off with Power Supplies Off

The MAX378 8-channel single-ended (1-of-8) multiplexer

and the MAX379 4-channel differential (2-of-8) multiplexer

use a series N-channel/P-channel/N-channel structure to

provide significant fault protection. If the power supplies to

the MAX378/MAX379 are inadvertently turned off while

input voltages are still applied, all channels in the muxes

are turned off, and only a few nanoamperes of leakage cur-

rent will flow into the inputs. This protects not only the

MAX378/MAX379 and the circuitry they drive, but also the

sensors or signal sources that drive the muxes.

♦ On Channel Turns OFF if Overvoltage Occurs on

Input or Output

♦ Only Nanoamperes of Input Current Under All

Fault Conditions

♦ No Increase in Supply Currents Due to Fault

Conditions

♦ Latchup-Proof Construction

The series N-channel/P-channel/N-channel protection

structure has two significant advantages over the simple

current-limiting protection scheme of the industry’s first-

generation fault-protected muxes. First, the Maxim protec-

tion scheme limits fault currents to nanoamp leakage

values rather than many milliamperes. This prevents dam-

age to sensors or other sensitive signal sources. Second,

the MAX378/MAX379 fault-protected muxes can withstand

a continuous ±60V input, unlike the first generation, which

had a continuous ±35V input limitation imposed by power

dissipation considerations.

♦ Operates from ±4.5V to ±18V Supplies

♦ All Digital Inputs are TTL and CMOS Compatible

♦ Low-Power Monolithic CMOS Design

______________Ord e rin g In fo rm a t io n

PART

TEMP. RANGE

0°C to +70°C

PIN-PACKAGE

16 Plastic DIP

24 Wide SO

16 CERDIP

Dice**

MAX378CPE

MAX378CWG

MAX378CJE

MAX378C/D

MAX378EPE

MAX378EWG

MAX378EJE

MAX378MJE

MAX378MLP

0°C to +70°C

All digital inputs have logic thresholds of 0.8V and 2.4V,

ensuring both TTL and CMOS compatibility without requir-

ing pull-up resistors. Break-before-make operation is

guaranteed. Power dissipation is less than 2mW.

0°C to +70°C

-40°C to +85°C

-55°C to +125°C

16 Plastic DIP

24 Wide SO

16 CERDIP

20 LCC*

________________________Ap p lic a t io n s

Data Acquisition Systems

Industrial and Process Control Systems

Avionics Test Equipment

Ordering Information continued at end of data sheet.

* Contact factory for availability.

**The substrate may be allowed to float or be tied to V+ (JI CMOS).

Signal Routing Between Systems

__________________________________________________________P in Co n fig u ra t io n s

TOP VIEW

V-

15 A2

15 GND

14 V+

V-

14 GND

13 V+

IN1

IN1A

MAX378

MAX379

13 IN1B

IN2

IN3

IN2A

IN3A

IN4A

OUTA

IN5

IN6

IN7

IN8

IN2B

IN3B

IN4B

OUTB

IN4

OUT

DIP

Pin Configurations continued at end of data sheet.

________________________________________________________________ Maxim Integrated Products

Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .

12 3 4 5 6 7...12

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MAX378EWG 替代型号

型号	品牌	替代类型	描述	数据表
MAX378CWG+	MAXIM	完全替代	Single-Ended Multiplexer, 1 Func, 8 Channel, CMOS, PDSO24, 0.300 INCH, SO-24
MAX378CWG	MAXIM	完全替代	High-Voltage, Fault-Protected Analog Multiplexers

与MAX378EWG相关器件

型号	品牌	获取价格	描述	数据表
MAX378-MAX379	MAXIM	获取价格	High-Voltage, Fault-Protected Analog Multiplexers
MAX378MJE	MAXIM	获取价格	High-Voltage, Fault-Protected Analog Multiplexers
MAX378MJE/883B	MAXIM	获取价格	Single-Ended Multiplexer, 1 Func, 8 Channel, CMOS, CDIP16, 0.300 INCH, CERAMIC, DIP-16
MAX378MJE/HR	MAXIM	获取价格	8-Channel Analog Multiplexer
MAX378MLP	MAXIM	获取价格	High-Voltage, Fault-Protected Analog Multiplexers
MAX378MLP/883B	MAXIM	获取价格	Single-Ended Multiplexer, 1 Func, 8 Channel, CMOS, 0.350 X 0.350 INCH, LCC-20
MAX379	MAXIM	获取价格	8-Channel.High-Voltage.Fault-Protected Multiplexers
MAX379	ADI	获取价格	8通道、高电压、故障保护多路复用器
MAX3793	MAXIM	获取价格	1Gbps to 4.25Gbps Multirate Transimpedance Amplifier with Photocurrent Monitor
MAX3793E/D	MAXIM	获取价格	1Gbps to 4.25Gbps Multirate Transimpedance Amplifier with Photocurrent Monitor

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