MAX4505

更新时间： 2024-09-15 22:58:03

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
8页	122K
描述
Fault-Protected, High-Voltage, Signal-Line Protector

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MAX4505 数据手册

19-1514; Rev 0; 7/99

Fault-Protected, High-Voltage,

Signal-Line Protector

MAX405

General Description

Features

The MAX4505 is a single signal-line protector featuring a

fault-protected input and Rail-to-Rail^®signal handling

capability. The input is protected from overvoltage faults

up to ±±36 ꢀith poꢀer on or ±406 ꢀith poꢀer off. ꢁuring

a fault condition, the input terminal becomes an open cir-

cuit and only nanoamperes of leakage current floꢀ from

the source, ꢀhile the sꢀitch output (AOUT) furnishes typ-

ically 19mA from the appropriate polarity supply to the

load. This ensures an unambiguous rail-to-rail output

ꢀhen a fault begins and ends.

♦ Overvoltage Protection

±40V with Power Off

±36V with Power On

♦ Open Signal Paths with Power Off

♦ Output Clamps to Either Rail with an Input

Overvoltage

♦ 100Ω max On-Resistance

♦ 10ns Overvoltage Turn-On Delay

♦ No Latchup During Power Sequencing

♦ Rail-to-Rail Signal Handling

The MAX4505 protects both unipolar and bipolar analog

signals using either unipolar (+96 to +±36) or bipolar

(±ꢂ6 to ±1ꢂ6) poꢀer supplies. The device has no logic

control inputs; the protector is alꢀays on ꢀhen the sup-

plies are on. On-resistance is 100Ω max, and on-leakage

is less than 0.5nA at T = +25°C. The MAX4505 is avail-

able in 5-pin SOT2± and ꢂ-pin µMAX packages.

♦ 500Ω Output Clamp Resistance During

Overvoltage

♦ Tiny 5-Pin SOT23 Package

Applications

Ordering Information

Process Control Systems

Hot-Insertion Boards/Systems

ꢁata-Acquisition Systems

Redundant/Backup Systems

ATE Equipment

PIN-

PACKAGE

TOP

MARK

PART

TEMP. RANGE

MAX4505EUK-T -40°C to +ꢂ5°C

5 SOT2±-5

ꢂ µMAX

AꢁLW

—

MAX4505EUA

-40°C to +ꢂ5°C

Sensitive Instruments

Typical Operating Circuit

Pin Configurations

TOP VIEW

V-

V+

V-

V+

MAX4505

V-

AIN

V+

V-

V+

MAX4505

RAIL

SENSOR

AOUT

N.C.

AOUT

OUT

AIN

SOT23-5

OUT

Pin Configurations continued at end of data sheet.

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

12 3 4 5 6 7 8

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与MAX4505相关器件

型号	品牌	获取价格	描述	数据表
MAX4505EUA	MAXIM	获取价格	Fault-Protected, High-Voltage, Signal-Line Protector
MAX4505EUA+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, UMAX-8
MAX4505EUA-T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, UMAX-8
MAX4505EUK-T	MAXIM	获取价格	Fault-Protected, High-Voltage, Signal-Line Protector
MAX4506	MAXIM	获取价格	Fault-Protected, High-Voltage Signal-Line Protectors
MAX4506	ADI	获取价格	故障保护、高电压信号线路保护器
MAX4506_03	MAXIM	获取价格	Fault-Protected, High-Voltage Signal-Line Protectors
MAX4506C	MAXIM	获取价格	Fault-Protected, High-Voltage Signal-Line Protectors
MAX4506C/D	MAXIM	获取价格	Fault-Protected, High-Voltage Signal-Line Protectors
MAX4506CPA	MAXIM	获取价格	Fault-Protected, High-Voltage Signal-Line Protectors

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