ams TMF8828 configurable 8x8 multi-zone Time-of-Flight Sensor

Description

The TMF8828 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, 4x4, 3x6 and 8x8 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 TMF8828 provides distance information together with confidence values on its I2C interface.

Details

Features

  • Direct ToF technology with high sensitivity SPAD detection
  • 8x8 configurable 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
  • Reduced board space requirements, enables low-profile system designs in restricted space Industrial designs

Parameters

Sensor zones
multi
Number of detection zones
64
Detection distance
max.
500 cm
Wafer level optical filters
Yes
Field of view
63 °
Operating ambient temperature
min.
-40 °C
max.
85 °C
Supply voltage
min.
2.7 V
max.
3.5 V
3.0 V
Wavelength
940 nm
Package
OLGA12
Package dimension
l
4.6 mm
w
2.0 mm
h
1.4 mm
Interface
input
I²C
output
I²C

Ordering codes

Product Type Description Order No. Availability
TMF8828-1A Q65114A1282
TMF8828-1AM Q65114A1281

Downloads

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Datasheets

TMF8820/21/28 Multizone Time-of-Flight Sensor

Datasheet

User guides

Application note

Technical documents

Environmental documents

Images