ams OSRAM TMF8805 1D Time-of-Flight (TOF) Sensor

ams OSRAM TMF8805 1D Time-of-Flight (TOF) Sensor is an optical distance sensor module that integrates a 940nm Class 1 eye-safe VCSEL, a high-sensitivity SPAD array, a precision Time-to-Digital converter, and a low-power microcontroller sub-system. The embedded histogram algorithm can detect cover glass and objects behind glass, selecting the object with the highest SNR while compensating for dirt and smudges on the cover glass. Together these components form a high-accuracy TOF measurement solution capable of detecting an object regardless of its color, texture, or reflectivity with a range of 20mm to 2500mm. This device is ideally suited to world-facing camera LDAF applications, user presence detection, collision avoidance, object detection, and other applications.

The TMF8805 is controlled by an I2C bus, one interrupt pin, and two GPIO pins. The device uses an I2C serial communication protocol for communication. The device supports 7-bit chip addressing and standard, fast mode, and fast mode plus modes.

The ams OSRAM TMF8805 1D TOF Sensor is available in a compact 2.2mm x 3.6mm x 1.0mm Organic Land Grid Array (OLGA) package.


  • 20mm to 2500mm distance sensing at 30Hz
  • Direct ToF technology with high sensitivity SPAD detection
  • Delivers high SNR, wide dynamic range, and no multi-path reflections
  • Enables dark and sunlight environment distance measurement within ±5%
  • Provides best-in-class resolution ranging mode detection sensing
  • 100k lux to 0 lux ambient light immunity
  • Enables accurate distance measurements
  • Provides high accuracy, greater distance between cover glass, dynamic cover glass calibration, dirt and smudge removal, and crosstalk compensation
  • Eye-safety circuitry stops VCSEL driver if VCSEL fault occurs
  • Optical filters with algorithm support enable high ambient light resilience
  • Fast Time-to-Digital Converter (TDC) architecture
  • Sub-nanosecond light pulse
  • On-chip histogram processing
  • 940nm VCSEL Class 1 Eye Safety
  • High-performance on-chip sunlight rejection filter and algorithm
  • 2.7V to 3.3V supply voltage
  • 1.8V I2C interface
  • -30°C to +70°C operating temperature range
  • 8-pin 2.2mm x 3.6mm x 1.0mm OLGA package


  • Laser Detect Auto-Focus (LDAF)
  • Presence detection
  • Industrial ranging
  • People counting
  • Object and collision avoidance
  • Fast ranging navigation detection
  • Inventory control
  • Optical switch
  • Low-power system buffering of 3D cameras

Block Diagram

ams OSRAM TMF8805 1D Time-of-Flight (TOF) Sensor


Published: 2021-01-21 | Updated: 2023-04-24