Overview
The Honeywell HMC5983-T is a temperature-compensated, three-axis digital compass integrated circuit designed for low-field magnetic sensing. This surface-mount, multi-chip module incorporates state-of-the-art magnetoresistive sensors and an Application-Specific Integrated Circuit (ASIC) that includes amplification, automatic degaussing strap drivers, offset cancellation, and a 12-bit Analog-to-Digital Converter (ADC). The HMC5983-T is suitable for various applications requiring precise magnetic field measurements.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage (VDD) | 2.16 | - | 3.6 | V |
| Supply Voltage (VDDIO) | 1.71 | - | 3.6 | V |
| Average Current Draw (Idle Mode) | - | - | 2 | μA |
| Average Current Draw (Measurement Mode, 7.5 Hz ODR) | - | - | 100 | μA |
| Field Range (Full Scale) | -8 | - | 8 | gauss |
| Digital Resolution (12-bit ADC) | 1 | - | - | LSb |
| Sensitivity (Gain) | 230 | 1370 | - | LSb/gauss |
| Operating Temperature | -30 | - | 85 | °C |
| Storage Temperature | -40 | - | 125 | °C |
| Package Size | 2.85 x 3.00 x 0.9 | - | - | mm |
Key Features
- Temperature Compensation: The HMC5983-T includes automatic temperature compensation to ensure accurate readings across a wide temperature range.
- High-Resolution ADC: A 12-bit ADC provides high-resolution magnetic field measurements, enabling 1° to 2° compass heading accuracy.
- Multi-Interface Support: The device supports both I²C and SPI serial bus interfaces for easy integration into various systems.
- Automatic Degaussing and Offset Cancellation: The ASIC includes automatic degaussing strap drivers and offset cancellation to maintain sensor accuracy and reduce magnetic history effects.
- Advanced Magnetoresistive Technology: Utilizes Honeywell’s Anisotropic Magnetoresistive (AMR) technology, offering advantages in linearity, low hysteresis, and null output stability.
- Compact Package: The device is housed in a 3.0x3.0x0.9mm surface-mount 16-pin leadless chip carrier (LCC).
Applications
- Mobile Devices: Suitable for use in mobile phones, tablets, and netbooks.
- Consumer Electronics: Ideal for consumer electronics requiring precise magnetic field sensing.
- Automotive Navigation: Used in automotive navigation systems and personal navigation devices.
- Industrial and Aerospace: Applicable in various industrial and aerospace applications where accurate magnetic field measurements are crucial.
Q & A
- What is the primary function of the HMC5983-T?
The HMC5983-T is a three-axis digital compass integrated circuit designed for low-field magnetic sensing. - What interfaces does the HMC5983-T support?
The device supports both I²C and SPI serial bus interfaces. - What is the resolution of the ADC in the HMC5983-T?
The HMC5983-T features a 12-bit ADC. - What is the operating temperature range of the HMC5983-T?
The operating temperature range is from -30°C to 85°C. - Does the HMC5983-T require external set/reset circuits?
No, the controlling of the set/reset function is done automatically by the ASIC. - What technology does the HMC5983-T use for magnetic sensing?
The HMC5983-T uses Honeywell’s Anisotropic Magnetoresistive (AMR) technology. - What is the package size of the HMC5983-T?
The device is housed in a 3.0x3.0x0.9mm surface-mount 16-pin leadless chip carrier (LCC). - Is the HMC5983-T suitable for automotive applications?
Yes, it is suitable for use in automotive navigation systems. - Does the HMC5983-T support automatic degaussing and offset cancellation?
Yes, the ASIC includes automatic degaussing strap drivers and offset cancellation. - What is the storage temperature range of the HMC5983-T?
The storage temperature range is from -40°C to 125°C.
