AD74115H Datasheet

The AD74115H is a high-precision temperature sensor developed by Analog Devices. It is designed for applications that require accurate and stable temperature measurements, particularly in industrial, automotive, and consumer electronics systems. The device integrates temperature sensing and analog-to-digital conversion (ADC) in a compact, easy-to-use package.

High Accuracy:

The AD74115H provides high-precision temperature sensing with an accuracy of ±0.5°C (typical) over a wide temperature range, ensuring reliable and precise temperature measurements in various environments.
It offers excellent offset and gain stability over temperature, making it ideal for long-term, low-maintenance applications.

Wide Temperature Range:

The device can measure temperatures from -40°C to +150°C, covering a broad range of temperature applications, from industrial to automotive.

Digital Output:

The AD74115H features a digital I²C interface, allowing easy integration into systems with microcontrollers and digital processors. The I²C interface supports standard, fast, and high-speed modes, providing flexibility in communication with other devices in the system.

Low Power Consumption:

Designed with low-power operation in mind, the AD74115H typically consumes only 25 µA of current in active mode and 0.5 µA in shutdown mode, making it ideal for battery-powered applications and low-power systems.

Fast Conversion Time:

The device offers a fast temperature conversion rate of 1 sample per second, enabling quick response in systems where temperature changes are rapid and need to be detected in real time.

Excellent Noise Immunity:

With low noise performance, the AD74115H ensures accurate readings even in electrically noisy environments, which is essential for industrial and automotive applications.

Small Package:

The sensor is available in a small, space-efficient package (e.g., SOT-23-3), making it ideal for applications where space is limited.

Integrated Features:

The AD74115H includes integrated internal temperature compensation and self-calibration features, ensuring stable and accurate measurements over time.

Wide Supply Voltage Range:

It operates with a wide supply voltage range from 1.8V to 3.6V, making it compatible with a variety of low-voltage systems.

Applications:

Industrial Equipment: Used in temperature sensing for control systems, environmental monitoring, and machine diagnostics.
Automotive: Ideal for automotive temperature sensing, including engine, cabin, and exhaust temperature monitoring.
Consumer Electronics: Suitable for devices like smartphones, tablets, and wearables that require accurate temperature sensing for thermal management.
Battery Management Systems: Used to monitor battery temperature and prevent overheating in lithium-ion batteries.
Medical Devices: Can be used for temperature sensing in medical equipment such as patient monitoring systems and medical instruments.

Electrical Specifications:

Temperature Range: -40°C to +150°C
Accuracy: ±0.5°C (typical) from 0°C to +100°C
Resolution: 16-bit digital output (I²C interface)
Power Consumption: 25 µA (active mode) and 0.5 µA (shutdown mode)
Supply Voltage: 1.8V to 3.6V
Interface: I²C, compatible with standard, fast, and high-speed modes
Conversion Rate: 1 sample per second