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MAX1989MUE+T

更新时间： 2024-11-13 12:59:51

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	229K
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MAX1989MUE+T 数据手册

19-1766; Rev 1; 8/02

Multichannel Remote/Local

Temperature Sensors

________________General Description

____________________________Features

The MAX1668/MAX1805/MAX1989 are precise multi-

channel digital thermometers that report the tempera-

ture of all remote sensors and their own packages. The

remote sensors are diode-connected transistors—typi-

cally low-cost, easily mounted 2N3904 NPN types—that

replace conventional thermistors or thermocouples.

Remote accuracy is 3ꢀ° for multiple transistor manu-

facturers, with no calibration needed. The remote chan-

nels can also measure the die temperature of other I°s,

such as microprocessors, that contain an on-chip,

diode-connected transistor.

ꢀ Multichannel

4 Remote, 1 Local (MAX1668/MAX1989)

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 for-

mat 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/MAX1989 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

MAX1989MEE

LAN Servers

Test and Measurement

Multichip Modules

16 QSOP

Industrial °ontrols

16 QSOP

Pin Configuration

Typical Operating Circuit

3V TO 5.5V

0.1µF

200Ω

TOP VIEW

DXP1

DXN1

16 GND

STBY

10kΩ EACH

15 STBY

14 SMBCLK

MAX1668

MAX1805

MAX1989

DXP2

DXP1

CLOCK

DATA

SMBCLK

DXN2

MAX1668

13 SMBDATA

12 ALERT

11 ADD0

2200pF

MAX1805

MAX1989

SMBDATA

ALERT

(N.C.) DXP3

(N.C.) DXN3

(N.C.) DXP4

(N.C.) DXN4

DXN1

INTERRUPT

TO µC

10 ADD1

DXP4

DXN4

2200pF

ADD0 ADD1 GND

QSOP

( ) ARE FOR MAX1805.

DIODE-CONNECTED TRANSISTOR

SMBus is a trademark of Intel Corp.

†Patents Pending

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...16

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MAX1989MUE+T 替代型号

型号	品牌	替代类型	描述	数据表
MAX1989MUE+	MAXIM	完全替代	Serial Switch/Digital Sensor, 8 Bit(s), 3Cel, Rectangular, 16 Pin, Surface Mount, 4.40 MM,
MAX1989MUE-T	MAXIM	功能相似	Serial Switch/Digital Sensor, 8 Bit(s), 3Cel, Rectangular, 16 Pin, Surface Mount, 4.40 MM,
MAX1989MUE	MAXIM	功能相似	Multichannel Remote/Local Temperature Sensors

与MAX1989MUE+T相关器件

型号	品牌	获取价格	描述	数据表
MAX1989MUE-T	MAXIM	获取价格	Serial Switch/Digital Sensor, 8 Bit(s), 3Cel, Rectangular, 16 Pin, Surface Mount, 4.40 MM,
MAX198ACAI	MAXIM	获取价格	Multirange, Single %V, 12-Bit DAS with 12-Bit Bus Interface
MAX198ACNI	MAXIM	获取价格	Multirange, Single %V, 12-Bit DAS with 12-Bit Bus Interface
MAX198ACWI	MAXIM	获取价格	Multirange, Single %V, 12-Bit DAS with 12-Bit Bus Interface
MAX198ACWI+	MAXIM	获取价格	Analog Circuit, 1 Func, PDSO28, 0.300 INCH, MS-013AE, SOIC-28
MAX198ACWI+T	MAXIM	获取价格	暂无描述
MAX198AEAI	MAXIM	获取价格	Multirange, Single %V, 12-Bit DAS with 12-Bit Bus Interface
MAX198AEAI+	MAXIM	获取价格	Analog Circuit, 1 Func, PDSO28, 0.200 INCH, 0.65 MM PITCH, SSOP-28
MAX198AEAI-T	MAXIM	获取价格	Analog Circuit, 1 Func, PDSO28, 0.200 INCH, 0.65 MM PITCH, SSOP-28
MAX198AENI	MAXIM	获取价格	Multirange, Single %V, 12-Bit DAS with 12-Bit Bus Interface

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