TLE4997A8D Datasheet, PDF (9/19 Pages) Infineon Technologies AG – Programmable Linear Dual Hall Sensor

TLE4997A8D Grade1
2
General
2.1
Block Diagram
Figure 2-1 shows is a simplified block diagram.
Bias
Supply
EEPROM
Interface
enable
General
VDD
HALL
A
D
Temp.
A
Sense
D
DSP
ROM
D
A
V_DD
OBD
OUT
GND
Figure 2-1 Block Diagram of the TLE4997A8D Grade1 with the ratiometric analog output interface
2.2
Functional Description
The linear Hall IC TLE4997A8D Grade1 has been designed specifically to meet the requirements of highly
accurate angle and position detection, as well as for current measurement applications.
The sensor provides a ratiometric analog output voltage, which is ideally suited to Analog-to-Digital (A/D)
conversion with the supply voltage as a reference.
The IC is produced in BiCMOS technology with high voltage capability and also provides reverse polarity
protection.
Digital signal processing using a 16-bit DSP architecture together with digital temperature and analog stress
compensation guarantees excellent stability over the whole temperature range and life time.
The minimum overall resolution is 12 bits. Nevertheless, some internal stages work with resolutions up to 20 bits.
Technical Product Description
9
Revision 1.0, 2014-05-21