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Analog Devices Inc./Maxim Integrated DS18B20+PAR

Part No.:: DS18B20+PAR

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: TO-226-3, TO-92-3 (TO-226AA)

Datasheet:: DS18B20+PAR.pdf

Description:: SENSOR DIGITAL -55C-125C TO92-3

In Stock:: 2248

Quantity:: Add To Cart

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DS18B20+PAR Specifications

Packaging:
Bulk
Series:
-
ProductStatus:
Active
SensorType:
Digital, Local
SensingTemperature-Local:
-55°C ~ 125°C
SensingTemperature-Remote:
-
OutputType:
1-Wire®
Voltage-Supply:
3V ~ 5.5V
Resolution:
12 b
Features:
Output Switch, Programmable Limit, Programmable Resolution
Accuracy-Highest(Lowest):
±0.5°C (±2°C)
TestCondition:
-10°C ~ 85°C (-55°C ~ 125°C)
OperatingTemperature:
-55°C ~ 125°C
MountingType:
Through Hole

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DS18B20+PAR information

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DS18B20+PAR Typical application Circuitry

DS18B20+PAR

The DS18B20+PAR is a variant in the DS18B20 series of digital temperature sensors by Maxim Integrated. This series is acclaimed for its precise temperature sensing capabilities and the ability to transmit data digitally via a one-wire bus. The DS18B20 series is extensively used in various applications requiring accurate temperature monitoring, such as in HVAC systems, environmental controls, and industrial equipment. The "+PAR" in DS18B20+PAR denotes that this model is specifically designed for parasitic power operation, allowing the sensor to draw power directly from the data line.

1. Power Supply and Data Line Setup: In the DS18B20+PAR, the VDD pin should be connected to ground, enabling parasitic power mode. This indicates that the data line will supply electricity to the sensor. Attach your microcontroller's DQ (Data) pin to a digital I/O pin. A pull-up resistor, typically around 4.7kΩ, is required between the DQ pin and the power supply to ensure reliable data transmission and to provide power in parasitic mode.

2. Grounding the Sensor: The GND pin of the DS18B20+PAR must be connected to the ground in your circuit. This provides a stable reference for the sensor's operations and is essential for accurate temperature measurement.

3. One-Wire Bus Communication: The DS18B20+PAR utilizes a one-wire bus for communication, which simplifies wiring, especially in setups with multiple sensors. This one wire serves as both a power source and a data transmission channel in parasitic power mode.

4. Considerations for Wiring and PCB Layout: Keep the data line as short as possible to reduce potential signal loss. If longer wire runs are required, you may need to adjust the value of the pull-up resistor to maintain signal integrity.

5. Accurate Sensor Placement: Position the DS18B20+PAR in an area that accurately represents the temperature of the environment you are monitoring. Avoid heat-generating components or areas with rapid temperature fluctuations not indicative of the overall environment.

In summary, the DS18B20+PAR is a versatile and accurate digital temperature sensor, suitable for various applications where precise temperature monitoring is needed. Its configuration for parasitic power operation simplifies the wiring requirements. Proper setup involves ensuring a stable ground connection, configuring the data line with a pull-up resistor, and considering sensor placement for accurate readings. Additionally, careful PCB design is essential, particularly in configurations involving long wiring or multiple sensors.

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6. What is the process for return or replacement of DS18B20+PAR?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the DS18B20+PAR we delivered, we will accept the replacement or return of the DS18B20+PAR only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of DS18B20+PAR.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations