ams OSRAM MULTILED® SFH 7018x for Vital Sign Monitoring

ams OSRAM MULTILED® SFH 7018x for Vital Sign Monitoring feature a highly reflective QFN package for significantly increased light output. These three-in-one, high-performance multi-emitters for green, red, and infrared target heart rate and SpO2 monitoring. A sophisticated two-cavity design reduces interferences between the green chip and the red/IR chip. The two cavities enable the light sources to be optimally placed relative to the respective photodiodes, providing higher measurement accuracy of vital signs. The SFH 7018A is optimized for maximum brightness and low Vf at a high current, allowing operation without a voltage booster in many cases.

Features

  • Clear silicone, SMT package
  • 2kV ESD per ANSI/ESDA/JEDEC JS-001 (HBM, Class 2)
  • Suitable for SMT assembly
  • Available on tape and reel
  • Emitters can be controlled separately
  • 2.4mm2 x 0.6mm in dimension

Applications

  • Digital diagnostic devices
  • Vital sign monitoring
  • Wearables

Specifications

  • 5V reverse voltage
  • Typical peak wavelengths
    • True green
      • 536.0nm for SFH 7018A
      • 526.0nm for SFH 7018B
    • 660.0nm for hyper-red
    • 950.0nm for infrared
  • 60°C typical half angle
  • Typical forward voltage ranges (from 100mA to 250mA)
    • 2.50V to 2.70V for SFH 7018A
    • 2.70V to 3.20V for SFH 7018B
  • Maximum forward current
    • 200mA for true green
    • 40mA for hyper-red
    • 80mA for infrared
  • Maximum forward current pulsed
    • True green
      • 0.75A for SFH 7018A
      • 0.5A for SFH 7018B
    • 0.3A for hyper-red
    • 1A for infrared
  • 10μA maximum reverse current at 5V, 0.01μA typical
  • Typical rise/fall times
    • 59ns for true green
    • 17ns for hyper-red
    • 16ns for infrared
  • Active area dimensions
    • 0.75mm2 for true green
    • 0.3mm2 for hyper-red and infrared
  • -40°C to +85°C operating temperature range

Block Diagram

Block Diagram - ams OSRAM MULTILED® SFH 7018x for Vital Sign Monitoring

ams OSRAM MULTILED® SFH 7018x for Vital Sign Monitoring