HAC830CV-M-A-2-A-2 Datasheet, PDF (4/49 Pages) Micronas – Robust Multi-Purpose Programmable Linear Hall-Effect Sensor with Integrated Capacitors

DATA SHEET
HAC 830
Robust Multi-Purpose Programmable Linear Hall-Effect Sensor with Integrated
Capacitors
1. Introduction
HAC 830 is a programmable linear Hall sensor from Micronas. It offers optimal Electro-
magnetic Compatibility (EMC) protection as it integrates the HAL 830 robust multipur-
pose device as well as decoupling capacitors within a single 3-pin package.
With its integrated capacitors, the HAC 830 meets the stringent ESD and EMC require-
ments and eliminates the need for a PCB, thus reducing the total system size and cost.
The HAC 830 is a magnetic field sensor based on the Hall effect featuring a linear out-
put. The IC can be used for angle or distance measurements when combined with a
rotating or moving magnet. There is no need either to add a load capacitor between
ground and the analog output or any blocking capacitor to suppress noise on the supply
line of the device.
The major characteristics like magnetic field range, sensitivity, output quiescent voltage
(output voltage at B = 0 mT), and output voltage range are programmable in a non-vola-
tile memory. The sensors have a ratiometric output characteristic, which means that the
output voltage is proportional to the magnetic flux and the supply voltage.
The HAC 830 features a temperature-compensated Hall plate with spinning-current off-
set compensation, an A/D converter, digital signal processing, a D/A converter with out-
put driver, an EEPROM memory with redundancy and lock function for the calibration
data, an EEPROM for customer serial number, a serial interface for programming the
EEPROM, protection devices at all pins and decoupling capacitors.
The HAC 830 is programmable by modulating the supply voltage. No additional pro-
gramming pin is needed. The easy programmability allows a 2-point calibration by
adjusting the output voltage directly to the input signal (like mechanical angle, distance,
or current). Individual adjustment of each sensor during the customer’s manufacturing
process is possible. With this calibration procedure, the tolerances of the sensor, the
magnet, and the mechanical positioning can be compensated in the final assembly. It is
possible to program several devices connected to the same supply and ground line.
In addition, the temperature compensation of the Hall IC can be fit to common magnetic
materials by programming first- and second-order temperature coefficients of the Hall
sensor sensitivity. This enables operation over the full temperature range with high
accuracy.
The calculation of the individual sensor characteristics and the programming of the
EEPROM memory can easily be done with a PC and the application kit from Micronas.
Micronas
Feb. 24, 2016; DSH000178_001EN
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