HAC830CV-M-A-2-A-2 Datasheet, PDF(12/49 Page) Micronas – Robust Multi-Purpose Programmable Linear Hall-Effect Sensor with Integrated Capacitors

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HAC830CV-M-A-2-A-2 Datasheet, PDF (12/49 Pages) Micronas – Robust Multi-Purpose Programmable Linear Hall-Effect Sensor with Integrated Capacitors

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DATA SHEET

HAC 830

Group 3 contains the general purpose register GP. The GP Register can be used to

store customer information, like a serial number after manufacturing. Micronas will use

this GP REGISTER to store informations like, lot number, wafer number, x and y posi-

tion of the die on the wafer, etc. This information can be read by the customer and

stored in itâs own data base or it can stay in the sensor as is.

Group 4 contains the Micronas registers and LOCK for the locking of all registers. The

MICRONAS registers are programmed and locked during production. These registers

are used for oscillator frequency trimming, A/D converter offset compensation, and sev-

eral other special settings.

An external magnetic field generates a Hall voltage on the Hall plate. The ADC converts

the amplified positive or negative Hall voltage (operates with magnetic north and south

poles at the branded side of the package) to a digital value. This value can be read by

the A/D-READOUT register to ensure that the suitable converter modulation is

achieved. The digital signal is filtered in the internal low-pass filter and manipulated

according to the settings stored in the EEPROM. The digital value after signal process-

ing is readable in the D/A-READOUT register. The operating range of the A/D converter

is from ï±30 mT up to ï±150 mT.

During further processing, the digital signal is multiplied with the sensitivity factor,

added to the quiescent output voltage level and limited according to the clamping volt-

age levels. The result is converted to an analog signal and stabilized by a push-pull out-

put transistor stage.

The D/A-READOUT at any given magnetic field depends on the programmed magnetic

field range, the low-pass filter, TC values and CLAMP-LOW and CLAMP-HIGH. The

D/A-READOUT range is min. 0 and max. 16383.

Note

During application design, it should be taken into consideration that the

maximum and minimum D/A-READOUT should not violate the error band

of the operational range.

Micronas

Feb. 24, 2016; DSH000178_001EN

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