ams OSRAM TMF8820/21/28

Multi-zone Time-of-Flight sensor with 940nm integrated IR VCSEL

The TMF8820/21/28 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 and a very 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 TMF8820/21/28 provide distance information together with confidence values on its I2C interface.

 

Key features

• Direct ToF technology with high sensitivity SPAD detection
• Various multi-zone configurations with multi-object detection - 3x3, 4x4, 3x6, 8x8
• 10 – 5000mm distance sensing @ 30Hz
• High performance on-chip sunlight rejection filter and algorithm

 

Additional features

• Multi-zone configuration with multi-object detection
  • TMF8820 3x3 zones operation
  • TMF8821 3x3, 4x4 and 3x6 zones operation
  • TMF8828 3x3, 4x4, 3x6, and 8x8 zones operation
• Adjustable field of view (up to 63° diagonal)
• Fast Time-to-Digital Converter (TDC) architecture
• Sub-nanosecond light pulse
• On-chip histogram processing
• 940nm VCSEL Class 1 Eye Safety
• Small modular OLGA 2.0mm x 4.6mm x 1.4mm package

 

Applications

• Laser Detect Auto-Focus (LDAF)
• User presence detection
• Industrial ranging
• Level sensing
• People counting
• Object and collision avoidance
• Inventory management
• Proximity detection

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