Optical Proximity Sensors
- Avago APDS-9700-020, 50-6969 is a device that has been designed to work with the proximity sensor 50-6968. This signal conditioning IC expands the performance & reliability of the object sensor connected to it. The device is a single chip solution that consists of an LED driver circuit, sunlight cancellation & built-in LED stuck high protection circuit integrated into a single chip. The IC has artificial light immunity & also operates in bright sunlight. The device can be disabled to maximize power savings & battery life in applications such as portable or battery-operated devices. The LED current of the optical proximity sensors can be configured to different levels using a limiting resistor at the LEDA pin. The IC also provides user flexibility to control the pulse width with suitable burst rate, duty cycle & frequency that can reduce power consumption. These low power consumption features makes it also ideal for low power mobile & handheld devices. The signal conditioner is also capable of operating at voltage supply ranging from 2.4 V to 3.6 V. It has has two separate output pins for analog & digital outputs, providing the flexibility to use either the analog or digital output (or both) depending on the requirements of the application. Avago Technologies APDS-9700-020 Signal Condition IC for Proximity Sensors