PRODUCT INFORMATION

HAL 1820

July/2009

All information and data contained in this product information are without any commitment, are not to be consid-

ered as an offer for conclusion of a contract, nor shall they be construed as to create any liability. Product or

development sample availability and delivery are exclusively subject to our respective order confirmation form. By

this publication, Micronas GmbH does not assume responsibility for patent infringements or other rights of third

parties which may result from its use.

Micronas GmbH

⋅ Hans-Bunte-Strasse 19 ⋅ D-79108 Freiburg (Germany) ⋅ P.O. Box 840 ⋅ D-79008 Freiburg (Germany)

Tel. +49-761-517-0

⋅ Fax +49-761-517-2174 ⋅ E-mail: docservice@micronas.com ⋅ www.micronas.com

No part of this publication may be reproduced, photo-

copied, stored on a retrieval system, or transmitted

without the express written consent of Micronas GmbH.

Edition July 7, 2009; Order No. PI000129_002EN

Development Tools

For engineering and production purposes,

Micronas offers an easy-to-use application kit:

(HAL-APB V 1.3)

Serial and USB Port

HAL Programmer Board

Fig. 1: Development tool setup

System Architecture

The HAL 1820 sensor is produced in a

proven

submicron

CMOS

technology.

The HAL 1820 features a temperature-com-

pensated Hall plate with choppered offset

compensation, an A/D converter, digital sig-

nal

processing,

an

analog

output,

an

EEPROM memory with redundancy and

lock function for the calibration data and the

data register information, a serial interface

for programming the EEPROM, and protec-

tion devices on all pins.

The HAL 1820 is programmable by modu-

lating the supply voltage. No additional pro-

gramming pin is needed.

The internal digital signal processing is a

great benefit because analog offsets, tem-

perature shifts, and mechanical stress do

not degrade the sensor accuracy.

Internally

Temperature

Oscillator

Switched

Digital

D/A

Analog

EEPROM Memory

Lock Control

stabilized

Supply and

Protection

Devices

Dependent

Bias

Protection

Devices

Hall Plate

Signal

Processing

Converter

Output

A/D

Converter

Overvoltage,

Undervoltage

Detection

GND

OUT

50

Ω

Fig. 2: Block diagram of the HAL 1820