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Optical Heart Rate Sensor ICs


BH1790GLC Optical Heart Rate Sensor ICs

The BH1790GLC is an optical heart rate sensor IC, used for heart monitoring. It incorporates an LED driver and green light detection photo-diode.

This innovative device drives the LED, providing intensity of light reflected from the body.

The LED brightness can be adjusted by the LED driver current and light emitting period.

The photodiode has a high sensitivity for the green light, excellent wavelength selectivity and first rate Ircut characteristics, achieving highly accurate pulse wave detection.

Key Features

  • Green filter with excellent wavelength selectivity
  • Built-in Ircut filter
  • LED Driver with current selection
  • Corresponds to 1.8V I2C Interface







  • Wearable Devices
  • Smart Phones
  • Tablets

Key Specifications

  • VCC1 Voltage Range:
  • VCC2 Voltage Range:
  • Current Consumption:
  • Standby Mode Current:
  • Operating Temperature Range:



2.80 x 2.80 x 1.00mm


2.5V to 3.6V

1.7V to 3.6V

200µA (Typ)

0.8µA (Typ)

-20°C to +85°C





Heart Monitored BH1790GLC Heart Rate Sensor



For further information on Heart Rate Sensors please contact Willow Technologies Limted: +44 (0) 1342 717102


Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, UK

Tel: +44 (0) 1342 717102, Fax: +44 (0) 1342 717014, Email:

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