ADM1025ARQZ-REEL

Product Overview

Category

The ADM1025ARQZ-REEL belongs to the category of integrated circuit (IC) temperature sensors.

Use

This product is primarily used for accurately measuring temperature in various electronic devices and systems.

Characteristics

• High precision: The ADM1025ARQZ-REEL offers precise temperature measurement with a resolution of up to 0.125°C.
• Wide temperature range: It can measure temperatures ranging from -40°C to +125°C.
• Digital output: This sensor provides a digital output interface, making it compatible with various microcontrollers and digital systems.
• Low power consumption: The ADM1025ARQZ-REEL operates on low power, making it suitable for battery-powered applications.
• Small package size: It comes in a compact package, allowing for easy integration into space-constrained designs.

Package and Quantity

The ADM1025ARQZ-REEL is available in a small outline integrated circuit (SOIC) package. It is typically sold in reels containing a specific quantity, such as 250 or 1000 units per reel.

Specifications

• Temperature Measurement Range: -40°C to +125°C
• Resolution: 0.125°C
• Accuracy: ±2°C (maximum)
• Supply Voltage: 3.0V to 5.5V
• Interface: I2C/SMBus
• Operating Current: 200µA (typical)

Pin Configuration

The ADM1025ARQZ-REEL has a total of 8 pins, which are assigned specific functions:

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: Serial data line (I2C/SMBus)
4. SCL: Serial clock line (I2C/SMBus)
5. ALERT: Interrupt output for temperature threshold detection
6. A0: Address selection bit 0
7. A1: Address selection bit 1
8. NC: No connection (unused pin)

Functional Features

• Temperature Measurement: The ADM1025ARQZ-REEL accurately measures temperature using an internal sensor and converts it into a digital format.
• Digital Interface: It provides an I2C/SMBus interface for easy communication with microcontrollers and other digital devices.
• Programmable Thresholds: The sensor allows users to set programmable temperature thresholds, triggering an interrupt when crossed.
• Shutdown Mode: It offers a low-power shutdown mode to conserve energy when not in use.
• Overtemperature Protection: The ADM1025ARQZ-REEL includes built-in protection against excessive temperatures, ensuring safe operation.

Advantages and Disadvantages

Advantages

• High precision temperature measurement
• Wide temperature range
• Digital output interface for easy integration
• Low power consumption
• Compact package size

Disadvantages

• Limited accuracy compared to some specialized temperature sensors
• Requires additional components for full functionality (microcontroller, I2C/SMBus interface)

Working Principles

The ADM1025ARQZ-REEL utilizes the principle of temperature-dependent voltage changes in a diode-connected transistor. This voltage is then converted into a digital value using an analog-to-digital converter (ADC) integrated within the sensor. The digital temperature data can be accessed through the I2C/SMBus interface.

Application Field Plans

The ADM1025ARQZ-REEL finds applications in various fields, including:

1. Consumer Electronics: Temperature monitoring in smartphones, tablets, laptops, and gaming consoles.
2. Industrial Automation: Temperature control systems in manufacturing plants and machinery.
3. HVAC Systems: Monitoring and controlling temperature in heating, ventilation, and air conditioning systems.
4. Automotive: Temperature sensing in engine management systems, climate control, and battery monitoring.
5. Medical Devices: Temperature monitoring in medical equipment, such as incubators and blood analyzers.

Alternative Models

1. TMP102: A similar digital temperature sensor with higher accuracy and lower power consumption.
2. LM35: An analog temperature sensor offering simplicity and compatibility with a wide range of microcontrollers.
3. DS18B20: A waterproof digital temperature sensor with a unique address for easy integration into multi-sensor networks.

These alternative models provide different features and specifications, allowing users to choose the most suitable option based on their specific requirements.

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