MLX75303

Optical Schmitt Trigger

3901075303xx

Page 2 of 12

Data Sheet

Rev. xxx

July/07

1

Functional Diagram

2

General Description

The MLX75303 is a CMOS integrated optical Schmitt trigger sensor with an integrated photodiode. The

sensor is intended for automotive applications wherein infrared LEDs are used.

The MLX75303 block diagram is shown in Section 1 and contains following blocks: a trans impedance

amplifier to convert and amplify the photocurrent of the photodiode, a voltage reference, a Schmitt trigger and

an open drain output stage.