DS1722U

更新时间： 2024-01-18 14:10:39

品牌	Logo	应用领域
美信 - MAXIM		传感器换能器温度传感器输出元件
页数	文件大小	规格书
14页	324K
描述
Digital Thermometer with SPI/3-Wire Interface

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技术参数
数据手册

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DS1722U 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	TSSOP8,.19	Reach Compliance Code：	unknown
风险等级：	5.81	安装特点：	SURFACE MOUNT
端子数量：	8	最大工作电流：	0.5 mA
最高工作温度：	120 °C	最低工作温度：	-55 °C
封装主体材料：	PLASTIC/EPOXY	封装等效代码：	TSSOP8,.19
封装形状/形式：	RECTANGULAR	电源：	3/5 V
子类别：	Other Sensors	表面贴装：	YES
Base Number Matches：	1

DS1722U 数据手册

DS1722

Digital Thermometer with

SPI/3-Wire Interface

www.maxim-ic.com

FEATURES

PIN ASSIGNMENT

Temperature Measurements Require No

External Components

V_DDD

V_DDA

V_DDD

SERMODE

SDI

Measures Temperatures from -55°C to

+120°C. Fahrenheit Equivalent is -67°F to

+248°F

Thermometer Accuracy is ±2.0°C

Thermometer Resolution is Configurable

from 8 to 12 bits (1.0°C to 0.0625°C

Resolution)

Data is Read From/Written to Via a Motorola

Serial Peripheral Interface (SPI) or Standard

3-Wire Serial Interface

Wide Analog Power Supply Range (2.65V -

5.5V)

SCLK

GND

SDI

SCLK

GND

SDO

DS1722S

8-Pin SO (150mil)

DS1722U

8-PIN µMAX

PIN DESCRIPTION

SERMODE

SCLK

GND

V_DDA

SDO

- Serial Interface Mode

- Chip Enable

- Serial Clock

- Ground

- Analog Supply Voltage

- Serial Data Out

Separate Digital Supply Allows for 1.8V

Logic

Available in an 8-Pin SO (150mil), 8-Pin

μMAX, and Flip-Chip Package

SDI

- Serial Data In

V_DDD

- Digital Supply Voltage

DESCRIPTION

The DS1722 Digital Thermometer and Thermostat with SPI/3-Wire Interface provides temperature

readings which indicate the temperature of the device. No additional components are required; the device

is truly a temperature-to-digital converter. Temperature readings are communicated from the DS1722

over a Motorola SPI interface or a standard 3-wire serial interface. The choice of interface standard is

selectable by the user.

For applications that require greater temperature resolution, the user can adjust the readout resolution

from 8 to 12 bits. This is particularly useful in applications where thermal runaway conditions must be

detected quickly.

For application flexibility, the DS1722 features a wide analog supply rail of 2.65V - 5.5V. A separate

digital supply allows a range of 1.8V to 5.5V.

The DS1722 is available in an 8-pin SO (150mil), 8-pin μMAX, and flip-chip package.

Applications for the DS1722 include personal computers/servers/workstations, cellular telephones, office

equipment, or any thermally-sensitive system.

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