Reach Farther with Your Proximity Sensor

Abstract: This article discusses several ways to increase the current that the MAX44000 proximity sensor can drive through an infrared LED. These methods range from very simple to fairly complex, and allow the user to detect objects much farther from the proximity sensor.

Maxim > Design Support > App Notes > Amplifier and Comparator Circuits > APP 5087
Maxim > Design Support > App Notes > Sensors > APP 5087

Keywords: proximity, als, optical, infrared, sensors, tablets, laptops, notebooks, human presence detection, LED

Jul 25, 2011
APPLICATION NOTE 5087
Reach Farther with Your Proximity Sensor
By: Ilya Veygman, Strategic Applications Engineer

Abstract: This article discusses several ways to increase the current that the MAX44000 proximity sensor can drive through an
infrared LED. These methods range from very simple to fairly complex, and allow the user to detect objects much farther from the
proximity sensor.


Background
The MAX4400