End Of Life: The End of Life (EOL) and Last Time Buy (LTB) has been announced for this part.
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Biometric HRM Sensor Modules with Built-in LEDs

The Si1171G2-GM Biometric Optical Sensor combines the lowest power optical heart rate monitoring (HRM) solution in the industry with best-in-class power. The small, integrated module contains lensing, photodiode, AFE/ADC and 2 Green LEDs (300mA capable) (all of which can be driven simultaneously), and simplifies optical design. The sensor can capture high quality PPG waveforms to support continuous HR measurement while consuming less than 50 uA of current (LED + Sensors). Other features include a >100 dB dynamic range, built-in buffer, I2C/SPI support and support for accelerometer synchronization.

Purchasing Information: Available in limited quantities for qualified customers (NDA required).

Please contact sales for pricing and product information.


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LED Configuration

Key Specs

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LED Drivers
LGA Module
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Quality Assurance, Environmental and Packaging Information

Silicon Labs targets a minimum of a 10-year lifecycle for all of its standard products and expects to produce the Si1171G2-GM until at least June 2023.

The longevity date shown above is for the preferred revision of this part number, for a complete list of part number revisions, use the search button below.

As part of its ongoing commitment to supply continuity, Silicon Labs may provide pin-compatible and functionally equivalent replacement products if Silicon Labs determines, at its discretion, that supply chain adjustments, product improvements, market conditions, or similar business or technical issues make this necessary or advisable.

If for business, technical or other reasons beyond Silicon Labs’ reasonable control, Silicon Labs finds that it is necessary to discontinue a product, our policy is to issue an EOL notice that provides 6 months from notice to place final orders and 12 months from notice for final shipments. This policy complies with the JEDEC standard EIA/JESD48 that is commonly used in the semiconductor industry. We provide the required support for a product for its full life cycle.

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