Analog Devices Inc

Photometric Front End with Integrated 14-bit ADC for Flexible LED Drivers

Analog Devices offers their ADPD103, ADPD105, and ADPD107 with a 1.8 V I²C interface and flexible LED signaling

Image of Analog Devices' Photometric Front EndThe ADPD103, ADPD105, and ADPD107, from ADI, are highly efficient photometric front ends with integrated 14-bit analog-to-digital converters (ADCs) and 20-bit burst accumulators that work in concert with flexible light emitting diode (LED) drivers. It is designed to stimulate an LED and measure the corresponding optical return signal. The data output and functional configuration occur over a 1.8 V I2C interface. The control circuitry includes flexible LED signaling and synchronous detection.

ADPD103 Features
  • Multifunction photometric front end
  • Fully integrated analog front end (AFE), analog-to-digital converter (ADC), light emitting diode (LED) drivers, and timing core
  • Three 8 mA to 370 mA LED drivers
  • Optical inputs: 1 to 8
  • Three 8 mA to 250 mA LED drivers
  • 20-bit burst accumulator enabling 20-bits per sample period
ADPD105 and ADPD107 Features
  • Multifunction photometric front end
  • Fully integrated analog front end (AFE), analog-to-digital converter (ADC), light emitting diode (LED) drivers, and timing core
  • Three 8 mA to 370 mA LED drivers
  • Optical inputs: 2
  • SPI, I2C interface, and 1.8 V analog/digital core
  • Three 8 mA to 250 mA LED drivers
  • 20-bit burst accumulator enabling 20-bits per sample period
  • Flexible sampling frequency ranging from 0.122 Hz to 3.820 kHz

Applications

  • Body-worn health and fitness monitors
  • Heart-rate monitors
  • Industrial monitoring
  • Background light measurements
  • Clinical measurements

Evaluation Board

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EVAL BOARD FOR ADPD103EVAL-ADPD103Z-GENEVAL BOARD FOR ADPD1030 - ImmediateSee Page for PricingView Details
EVAL BOARD FOR ADPD105EVAL-ADPD105Z-GENEVAL BOARD FOR ADPD1050 - ImmediateSee Page for PricingView Details

Photometric Front End

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC AFE 4 CHAN 14BIT 28LFCSP-WQADPD103BCPZIC AFE 4 CHAN 14BIT 28LFCSP-WQ88 - Immediate$6.89View Details
IC AFE 4 CHAN 14BIT 28LFCSP-WQADPD103BCPZRLIC AFE 4 CHAN 14BIT 28LFCSP-WQ0 - ImmediateSee Page for PricingView Details
IC AFE 4 CHAN 14BIT 16WLCSPADPD105BCBZR7IC AFE 4 CHAN 14BIT 16WLCSP153 - Immediate$6.53View Details
IC AFE 4 CHAN 14BIT 17WLCSPADPD107BCBZR7IC AFE 4 CHAN 14BIT 17WLCSP0 - ImmediateSee Page for PricingView Details
Published: 2016-10-17