Overview
The Honeywell HMC5983 is a temperature-compensated three-axis integrated circuit e-compass designed for low-field magnetic sensing. This surface-mount, multi-chip module integrates state-of-the-art, high-resolution HMC118X series magnetoresistive sensors along with an ASIC containing amplification, automatic degaussing strap drivers, offset cancellation, and a 12-bit ADC. This configuration enables 1° to 2° compass heading accuracy. The device is suitable for various applications including mobile phones, tablets, netbooks, consumer electronics, automotive navigation systems, and personal navigation devices.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage (VDD) | 2.16 | 1.71 | 2.5 | V |
| Supply Voltage (VDDIO) | 1.8 | 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 | |
| Mag Dynamic Range | ±1 | ±8 | gauss | |
| Sensitivity (Gain) | 230 | 1370 | LSb/gauss | |
| Digital Resolution | 1 | LSb, 12-bit ADC |
Key Features
- Temperature-compensated three-axis magnetoresistive sensor.
- High-resolution HMC118X series magnetoresistive sensors.
- ASIC with amplification, automatic degaussing strap drivers, offset cancellation, and a 12-bit ADC.
- 1° to 2° compass heading accuracy.
- I²C or SPI serial bus interface for easy communication.
- Self-test feature for internal magnetic field excitation and measurement.
- Support for Hard Iron, Soft Iron, and Auto Calibration libraries.
- Dual power supply domains: VDD for internal operations and VDDIO for IO interface.
- Operating modes include Continuous-Measurement, Single-Measurement, and Idle modes.
Applications
- Mobile phones and tablets.
- Netbooks and consumer electronics.
- Automotive navigation systems.
- Personal navigation devices.
Q & A
- What is the HMC5983?
The HMC5983 is a temperature-compensated three-axis integrated circuit e-compass designed for low-field magnetic sensing.
- What are the key components of the HMC5983?
The HMC5983 includes HMC118X series magnetoresistive sensors and an ASIC with amplification, automatic degaussing strap drivers, offset cancellation, and a 12-bit ADC.
- What is the accuracy of the HMC5983?
The HMC5983 provides 1° to 2° compass heading accuracy.
- What communication interfaces does the HMC5983 support?
The HMC5983 supports I²C or SPI serial bus interfaces.
- What are the operating modes of the HMC5983?
The HMC5983 operates in Continuous-Measurement, Single-Measurement, and Idle modes.
- How does the self-test feature work?
The self-test feature internally excites the sensor with a nominal magnetic field and measures it to ensure proper operation.
- What are the power supply requirements for the HMC5983?
The HMC5983 has two power supply domains: VDD for internal operations and VDDIO for IO interface, which can be either single supply or dual supply.
- What is the package type of the HMC5983?
The HMC5983 is packaged in a 3.0x3.0x0.9mm surface mount 16-pin leadless chip carrier (LCC).
- What technology does the HMC5983 use?
The HMC5983 utilizes Honeywell’s Anisotropic Magnetoresistive (AMR) technology.
- What are some common applications of the HMC5983?
The HMC5983 is used in mobile phones, tablets, netbooks, consumer electronics, automotive navigation systems, and personal navigation devices.
