ams TMF8821 configurable 4x4 multi-zone Time-of-Flight Sensor

Description

The TMF8821 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 and 3x6 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 TMF8821 provides distance information together with confidence values on its I2C interface.

Details

Features

  • Direct ToF technology with high sensitivity SPAD detection
  • 4x4 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
18
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 information

Product Type Description Ordering code Availability
TMF8821-1A Tape & Reel (13” reels) 4000 pcs/reel 3x3, 4x4 and 3x6 zones Q65114A1279 Full production
TMF8821-1AM Tape & Reel (7” reels) 500 pcs/reel 3x3, 4x4 and 3x6 zones Q65114A1280 Full production

Downloads

Datasheets

TMF8820/21/28 Multizone Time-of-Flight Sensor · Datasheet · PDF · en_US

User guides

TMF882X-SHIELD_QG001023 · Quick start guide · PDF · en_US
TMF882X_UG000495 · User guide · PDF · en_US
TMF8820 TMF8821 Arduino Demo Kit UG001050 1.00 · User guide · PDF · en_US

Application note

Presence and Speed detection with dToF · Product related · PDF · en_US
ams Optical Sensors Design Recommendations - System EMI and ESD · Product related · PDF · en_US
TMF882X Host Driver Communication AN001015 · Product related · PDF · en_US
TMF882x Shield Board Crosstalk AN001049 · Product related · PDF · en_US
Angle measurement and keystone correction using dToF sensor · Product related · PDF · en_US
Vertical measurement methods using direct time-of-flight (dToF) sensors · Product related · PDF · en_US

Technical documents

TMF882x_AD001003_1-00 · Application Data · PDF · en_US
ToF_Sensors_CAD_libraries_AD001010_2-00 · Application Data · ZIP · en_US
TMF882X_FS001010_1-00 · Factsheet · PDF · en_US
TMF882X_PD001043_1-00 · Technical Information · ZIP · en_US
TMF882x-RB_PD001049_1-00.STEP · Technical Information · STEP · en_US
TMF8821_TMF8828_FoI_FoV_PD001050_1-00.STEP · Technical Information · STEP · en_US
TMF882X_LogFile_Format_PD000548_4-00 · Technical note · PDF · en_US
TMF882x_PD001038_1-00 · Technical note · PDF · en_US
TMF882x_PD001040_1-00 · Technical note · PDF · en_US
TMF882X_ODG_PD001042 · Technical note · PDF · en_US
TMF8821_SDK_Overview_PD001044_1-00 · Technical note · PDF · en_US
TMF8XXX Longevity PD001078 1.00 · Technical note · PDF · en_US
TMF882X_TN001004_2-00 · Technical note · PDF · en_US

Environmental documents

MDF TMF8821-1A 510840034 MD001029 1.00 · Material declaration form · PDF · en_US
MDF TMF8821-1AM 510840034 MD001030 1.00 · Material declaration form · PDF · en_US
TMF8820_TMF8821_TMF8828_RC001030_2-00 · RoHS certificate · PDF · en_US
TMF882X RC001064 1.00 · RoHS certificate · PDF · en_US

Certificates

TMF882X CERT0003 3.00 · Certificate of compliance · PDF · en_US

Images

TMF882x_IM001112_1-00 · Images · JPG
TMF882x_IM001111_1-00 · Images · JPG
TMF882x_IM001113_1-00 · Images · JPG
TMF882x_IM001114_1-00 · Images · JPG
Block diagram TMF8820, TMF8821, TMF8828 · Block diagram · PNG

Software

TMF882x_Driver_Linux_Source_v3.56.zip · Driver · ZIP · en_US
TMF882x_Driver_Python_Source_v2024.02.01.zip · Driver · ZIP · en_US
TMF882x_Driver_DescatteringFilter_Source_v1-0.zip · Driver · ZIP · en_US
TMF882x_Driver_Linux_v3.56.zip · Driver · ZIP · en_US
TMF8828_Driver_Arduino_Source_v14.zip · Driver · ZIP · en_US
TMF882x_Driver_SPAD_Tool_Standalone_v3.54.zip · Driver · ZIP · en_US
TMF88XX_Driver_PC_v1.zip · Driver · ZIP · en_US
TMF882X_EvalSW_Arduino_Demo_GUI_v1-0-11.exe · Evaluation software · EXE · en_US
TMF882X_EvalSW_v4-7-3.exe · Evaluation software · EXE · en_US
TMF882x_FW_HowToGetTheLatestFirmware_v2.md · Firmware · MD · en_US