DS7505UT

更新时间： 2024-11-25 03:30:35

品牌	Logo	应用领域
美信 - MAXIM		监控
页数	文件大小	规格书
14页	149K
描述
Digital Thermometer and Thermostat

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中文翻译

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数据手册

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DS7505UT 数据手册

Rev 1; 3/08

Digital Thermometer and Thermostat

General Description

Features

The DS7505 low-voltage (1.7V to 3.7V) digital ther-

mometer and thermostat provides 9-, 10-, 11-, or 12-bit

digital temperature readings over a -55°C to +125°C

range with 0.5°C accuracy over a -0°C to +70°C range.

A 9-bit resolution mode is software compatible with the

LM75. Communication with the DS7505 is achieved

through a simple 2-wire serial interface. Three address

pins allow up to eight DS7505 devices to operate on the

same 2-wire bus, which greatly simplifies distributed

temperature-sensing applications.

o Operating Range from 1.7V to 3.7V

o Temperature Measurements Require No External

Components

o Measures Temperatures from -55°C to +125°C

(-67°F to +257°F)

0.5°C Accuracy Over a 0°C to +70°C Range

o Thermometer Resolution is User-Configurable

from 9 (Default) to 12 Bits (0.5°C to 0.0625°C

Resolution)

The DS7505 thermostat has a dedicated open-drain out-

put (O.S.) and programmable fault tolerance, which

allows the user to define the number of consecutive

error conditions that must occur before O.S. is activated.

There are two thermostatic operating modes that control

thermostat operation based on user-defined trip points

o 9-Bit Conversion Time is 25ms (max)

o Thermostatic Settings are User-Definable and

Nonvolatile (NV)

o Stand-Alone Thermostat Capability

(T and T

) that are stored in EEPROM registers.

HYST

o Data Read/Write Occurs Through a 2-Wire Serial

Applications

Interface (SDA and SCL Pins)

Networking Equipment

Cellular Base Stations

Office Equipment

o Data Lines Filtered Internally for Noise Immunity

(50ns Deglitch)

o Optional Bus Timeout Feature Prevents Lockup

Problems on 2-Wire Interface

Medical Equipment

o Multidrop Capability Simplifies Distributed

Any Thermally Sensitive System

Temperature-Sensing Applications

Pin Configurations

o Pin/Software Compatible with the LM75

o Available in 8-Pin SO and µMAX Packages

TOP VIEW

Ordering Information

SDA

SCL

O.S.

GND

VDD

PART

TEMP RANGE

PIN-PACKAGE

DS7505

DS7505S+

-55°C to +125°C

8 SO (150 mils)

8 SO (150 mils),

2500-Piece T&R

DS7505S+T&R

DS7505U+

-55°C to +125°C

8 µMAX

8 µMAX,

3000-Piece T&R

DS7505U+T&R

+Denotes a lead-free package.

T&R = Tape and reel.

SDA

SCL

O.S.

GND

VDD

DS7505

Commands are capitalized for clarity.

µMAX

µMAX is a registered trademark of Maxim Integrated Products, Inc.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...14

中文翻译

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