Time-of-flight sensor TMF8820

The TMF8820 is a direct time-of-flight (dToF) sensor in a single modular package with associated VCSEL. The dToF device is based on SPAD, TDC and histogram technology and achieves 5000 mm detection range. Due to its lens on the SPAD, it supports 3x3 multizone output data and a wide, dynamically adjustable, field of view. A multi-lens-array (MLA) inside the package above the VCSEL widens up the FoI (field of illumination). All processing of the raw data is performed on-chip and the TMF8820 provides distance information together with confidence values on its I2C interface. • Direct ToF technology with high sensitivity SPAD detection • 3x3 multi-zone configuration with multi-object detection • Adjustable field of view (up to 63° diagonal) • Fast Time-to-Digital Converter (TDC) architecture • Sub-nanosecond light pulse • 10 – 5000mm distance sensing @ 30Hz • On-chip histogram processing • 940nm VCSEL Class 1 Eye Safety • High performance on-chip sunlight rejection filter and algorithm • Small modular OLGA 2.0mm x 4.6mm x 1.4mm package Benefits • Delivers high SNR, wide dynamic range and no multi-path reflections • Enables dark and sunlight environment distance measurement within ±5% • Adaptable FoV for custom scene matching • Provides best-in-class resolution ranging mode detection sensing • Enables accurate distance measurements • Provides high accuracy, greater distance between cover glass, dynamic cover glass calibration, dirt or smudge removal and crosstalk compensation • Eye-safety circuitry stops VCSEL driver if VCSEL fault occurs • Optical filters with algorithm support enables high ambient light resilience