SS40A

CMOS Omnipolar High Sensitivity Micropower Hall Switch

Typical Application Circuit

SEC's pole-independent sensing technique allows for operation with either a north pole or south pole magnet

orientation, enhancing the manufacturability of the device. The state-of-the-art technology provides the same output

polarity for either pole face.

It is strongly recommended that an external bypass be connected (in close proximity to the Hall sensor) between the

supply and ground of the device to reduce both external noise and noise generated by the chopper-stabilization

technique. This is especially true due to the relatively high impedance of battery supplies.

Functional Block Diagrams

 

 

Voltage 

Output 

 

Amp

Hall Plate 

GND 

 

 

2

V1.10

May 1, 2011