Datasheet > MAX1668_00

MAX1668_00

更新时间： 2024-02-16 10:08:55

品牌	Logo	应用领域
美信 - MAXIM		传感器温度传感器
页数	文件大小	规格书
16页	224K
描述
Multichannel Remote/Local Temperature Sensor

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MAX1668_00 数据手册

19-1766; Rev 0; 8/00

Multichannel Remote/Local

Temperature Sensor

________________General Description

____________________________Features

The MAX1668/MAX1805 are precise multichannel digi-

tal thermometers that report the temperature of all

remote sensors and their own packages. The remote

sensors are diode-connected transistors—typically low-

cost, easily mounted 2N3904 NPN types—that replace

conventional thermistors or thermocouples. Remote

accuracy is 3ꢀ° for multiple transistor manufacturers,

with no calibration needed. The remote channels can

also measure the die temperature of other I°s, such as

microprocessors, that contain an on-chip, diode-con-

nected transistor.

ꢀ Multichannel

4 Remote, 1 Local (MAX1668)

2 Remote, 1 Local (MAX1805)

ꢀ No Calibration Required

ꢀ SMBus 2-Wire Serial Interface

ꢀ Programmable Under/Overtemperature Alarms

ꢀ Supports SMBus Alert Response

ꢀ Accuracy

±2ꢀC (ꢁ60ꢀC to ꢁ100ꢀC, local)

±±ꢀC (-40ꢀC to ꢁ125ꢀC, local)

±±ꢀC (ꢁ60ꢀC to ꢁ100ꢀC, remote)

The 2-wire serial interface accepts standard System

Management Bus (SMBus™) Write Byte, Read Byte,

Send Byte, and Receive Byte commands to program the

alarm thresholds and to read temperature data. The data

format is 7 bits plus sign, with each bit corresponding to

1ꢀ°, in two’s-complement format.

ꢀ ±µA (typ) Standby Supply Current

ꢀ 700µA (max) Supply Current

ꢀ Small, 16-Pin QSOP Package

The MAX1668/MAX1805 are available in small, 16-pin

QSOP surface-mount packages.

________________________Applications

_______________Ordering Information

Desktop and Notebook

°omputers

°entral Office Telecom

Equipment

PART

TEMP. RANGE

-55ꢀ° to +125ꢀ°

PIN-PACKAGE

16 QSOP

MAX1668MEE

MAX1805MEE

LAN Servers

Test and Measurement

Multichip Modules

16 QSOP

Industrial °ontrols

Pin Configurations

Typical Operating Circuit

3V TO 5.5V

0.1µF

200Ω

TOP VIEW

STBY

DXP1

DXN1

16 GND

10k EACH

15 STBY

14 SMBCLK

MAX1668

MAX1805

DXP2

DXP1

CLOCK

DATA

SMBCLK

2200pF

DXN2

MAX1668

MAX1805

13 SMBDATA

12 ALERT

11 ADD0

SMBDATA

ALERT

DXN1

(N.C.) DXP3

(N.C.) DXN3

(N.C.) DXP4

(N.C.) DXN4

INTERRUPT

TO µC

DXP4

DXN4

10 ADD1

2200pF

ADD0 ADD1 GND

QSOP

( ) ARE FOR MAX1805.

DIODE-CONNECTED TRANSISTOR

SMBus is a trademark of Intel Corp.

†Patents Pending

________________________________________________________________ Maxim Integrated Products

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.

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

12 3 4 5 6 7...16

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与MAX1668_00相关器件

型号	品牌	获取价格	描述	数据表
MAX1668_03	MAXIM	获取价格	Multichannel Remote/Local Temperature Sensors
MAX1668EVSYS	MAXIM	获取价格	Evaluation System for the MAX1668
MAX1668-MAX1989	MAXIM	获取价格	Multichannel Remote/Local Temperature Sensors
MAX1668MEE	MAXIM	获取价格	Multichannel Remote/Local Temperature Sensors
MAX1668MEE+	MAXIM	获取价格	Serial Switch/Digital Sensor, 8 Bit(s), 3Cel, Rectangular, 16 Pin, Surface Mount, 0.150 IN
MAX1668MEE+T	MAXIM	获取价格	Serial Switch/Digital Sensor, 8 Bit(s), 3Cel, Rectangular, 16 Pin, Surface Mount, 0.150 IN
MAX1668MEE-T	MAXIM	获取价格	Serial Switch/Digital Sensor, 8 Bit(s), 3Cel, Rectangular, 16 Pin, Surface Mount, 0.150 IN
MAX1669	MAXIM	获取价格	Fan Controller and Remote Temperature Sensor with SMBus Serial Interface
MAX1669	ADI	获取价格	风扇控制器及远端温度传感器，带有SMBus串行接口
MAX1669EEE	MAXIM	获取价格	Fan Controller and Remote Temperature Sensor with SMBus Serial Interface

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