DS1722S+T&R

更新时间： 2024-01-01 17:40:40

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
14页	324K
描述
Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Rectangular, 8 Pin, Surface Mount, 0.150 INCH, LEAD FREE, SOIC-8

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DS1722S+T&R 技术参数

DS1722

OVERVIEW

A block diagram of the DS1722 is shown in Figure 1. The DS1722 consists of four major components:

1. Precision temperature sensor

2. Analog-to-digital converter

3. SPI/3-wire interface electronics

4. Data registers

The factory-calibrated temperature sensor requires no external components. The DS1722 is in a power-

conserving shutdown state upon power-up. After power-up, the user may alter the configuration register

to place the device in a continuous temperature conversion mode or in a one-shot conversion mode. In

the continuous conversion mode, the DS1722 continuously converts the temperature and stores the result

in the temperature register. As conversions are performed in the background, reading the temperature

DS1722 will perform one temperature conversion, store the result in the temperature register, and then

return to the shutdown state. This conversion mode is ideal for power sensitive applications. More

information on the configuration register is contained in the “OPERATION-Programming” section.

The temperature conversion results will have a default resolution of 9 bits. In applications where small

incremental temperature changes are critical, the user can change the conversion resolution from 9 bits to

8, 10, 11, or 12. This is accomplished by programming the configuration register. Each additional bit of

resolution approximately doubles the conversion time.

The DS1722 can communicate using either a Motorola Serial Peripheral Interface (SPI) or standard 3-

wire interface. The user can select either communication standard through the SERMODE pin, tying it to

V_DDDfor SPI and to ground for 3-wire.

The device contains both an analog supply voltage and a digital supply voltage (V_DDAand V_DDD

respectively). The analog supply powers the device for operation while the digital supply provides the

top rails for the digital inputs and outputs. The DS1722 was designed to be 1.8V Logic-Ready.

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型号	品牌	描述	获取价格	数据表
DS1722U	MAXIM	Digital Thermometer with SPI/3-Wire Interface	获取价格
DS1722U	DALLAS	Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Rectangular, 8 Pin, Surface Mount, MICRO, S	获取价格
DS1722U/T&R	MAXIM	Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Rectangular, 8 Pin, Surface Mount, MICRO MA	获取价格
DS1722U+	MAXIM	Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Rectangular, 8 Pin, Surface Mount, MICRO MA	获取价格
DS1722U+T&R	MAXIM	Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Rectangular, 8 Pin, Surface Mount, MICRO MA	获取价格
DS1724S	DALLAS	Serial Switch/Digital Sensor, 9 Bit(s), Rectangular, 8 Pin, Surface Mount,	获取价格