ADPD142RG Fully Integrated Photometric System with Ambient Light Rejection
The ADPD142RG/ADPD142RI are complete photometric systems designed to stimulate LEDs and measure the corresponding optical return signals. These systems feature best-in-class rejection of ambient light interference, both dc and ac. Each module contains a highly efficient photometric front end, two LEDs, and a photodiode. The front end consists of a control block, a 14-bit analog-to-digital converter (ADC) with 20-bit burst accumulator and two flexible, independently configurable LED drivers. The analog front end (AFE) handles return data from each LED on separate data paths, and with the option of separate AFE settings. The data output and functional con-figuration occur over a 1.8 V I2C interface. The control circuitry includes flexible LED signaling and synchronous detection.
Applications
Features and Benefits2.8 mm × 5 mm module with integrated optical components- Red and green LEDs
- Photodiode
Red and green LEDsPhotodiodeTrue dual channel 250 mA LED driverSeparate LED and AFE settings for each channelDual data registers for each LED return signal14-bit ADC20-bit burst accumulator enabling 20 bits per sample periodOn-board sample to sample accumulator enabling up to 27 bits per data read | |
Data Sheets
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| ADPD142RG-BCEZ-RL Contact ADI | LGA_CAV NO LEAD CAVITY | REEL 4000 | -40 to 85C | 0 | 4 | Y |
