DS28EL35QA-742+2BW

Product Overview

Category

The DS28EL35QA-742+2BW belongs to the category of digital temperature sensors.

Use

This product is primarily used for accurate temperature measurement and monitoring in various applications.

Characteristics

• High precision: The DS28EL35QA-742+2BW offers exceptional accuracy in temperature sensing, ensuring reliable measurements.
• Digital output: It provides a digital output interface, making it easy to integrate with microcontrollers or other digital systems.
• Wide temperature range: This sensor can operate within a wide temperature range, allowing it to be used in diverse environments.
• Low power consumption: The DS28EL35QA-742+2BW is designed to consume minimal power, making it suitable for battery-powered devices.
• Small package size: With its compact form factor, this sensor can be easily integrated into space-constrained designs.

Package

The DS28EL35QA-742+2BW comes in a small surface-mount package, which facilitates easy mounting on PCBs.

Essence

The essence of the DS28EL35QA-742+2BW lies in its ability to accurately measure temperature and provide digital output, enabling seamless integration into various electronic systems.

Packaging/Quantity

This product is typically available in reels containing a specific quantity of sensors, as specified by the manufacturer.

Specifications

• Temperature Range: -40°C to +125°C
• Resolution: 0.0625°C
• Accuracy: ±0.5°C (typical)
• Supply Voltage: 3.0V to 5.5V
• Interface: 1-Wire® protocol
• Operating Current: 1.5mA (maximum)

Detailed Pin Configuration

The DS28EL35QA-742+2BW features the following pin configuration:

| Pin Name | Description | |----------|-------------| | VDD | Power supply voltage input | | GND | Ground connection | | DQ | 1-Wire data line |

Functional Features

• Temperature Conversion: The DS28EL35QA-742+2BW can accurately convert the sensed temperature into a digital format.
• 1-Wire Interface: It utilizes the 1-Wire protocol for communication, simplifying integration with compatible systems.
• Alarm Functionality: This sensor supports programmable high and low temperature alarm thresholds, triggering an alert when crossed.
• Nonvolatile Memory: The DS28EL35QA-742+2BW incorporates nonvolatile memory to store user-defined configuration settings.

Advantages and Disadvantages

Advantages

• High accuracy ensures reliable temperature measurements.
• Digital output simplifies integration with microcontrollers and digital systems.
• Wide temperature range enables versatile application in various environments.
• Low power consumption prolongs battery life in portable devices.
• Compact package size facilitates easy integration into space-constrained designs.

Disadvantages

• Limited to 1-Wire interface compatibility, which may not be suitable for all applications.
• Higher cost compared to some analog temperature sensors.

Working Principles

The DS28EL35QA-742+2BW operates based on the principle of temperature-dependent resistance. It utilizes an internal temperature sensor element that changes its resistance with temperature variations. This change is then converted into a digital signal using an analog-to-digital converter (ADC) integrated within the sensor. The digital output is transmitted through the 1-Wire interface, allowing for easy communication with external systems.

Detailed Application Field Plans

The DS28EL35QA-742+2BW finds applications in various fields, including:

1. HVAC Systems: Accurate temperature measurement is crucial for efficient heating, ventilation, and air conditioning systems.
2. Industrial Automation: Monitoring temperature in industrial processes ensures optimal operation and prevents equipment damage.
3. Medical Devices: Precise temperature sensing is essential in medical devices such as incubators, blood analyzers, and patient monitoring systems.
4. Automotive: Temperature monitoring in automotive applications helps prevent overheating and ensures proper functioning of critical components.
5. Consumer Electronics: From smart thermostats to wearable devices, the DS28EL35QA-742+2BW can be used in a wide range of consumer electronics for temperature measurement.

Detailed and Complete Alternative Models

1. DS18B20: A popular digital temperature sensor with similar characteristics and 1-Wire interface compatibility.
2. LM35: An analog temperature sensor widely used for temperature measurement in various applications.
3. TMP36: Another analog temperature sensor known for its low power consumption and ease of use.

These alternative models offer different features and interfaces, providing flexibility based on specific application requirements.

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