Texas Instruments

IWR1843 Single-Chip 76 GHz to 81 GHz FMCW mmWave Radar Sensor

Texas Instruments' sensors are applicable as radar-on-chip devices for use-cases that require modest memory and processing capacity requirements

Image of Texas Instruments' IWR1843 Single-Chip mmWave Radar SensorTexas Instruments' IWR1843 integrated single-chip mmWave sensors are based on FMCW radar technology and offer a band range of 76 GHz to 81 GHz with up to 4 GHz continuous chirp. These devices are built with the low-power 45 nm RFCMOS process from Texas Instruments. This solution enables unprecedented levels of integration in an extremely small form-factor. The IWR1843 is ideal for low-power, self-monitored, ultra-accurate radar systems for industrial applications such as building automation, factory automation, drones, material handling, traffic monitoring, and surveillance.

The IWR1843 is a self-contained solution that includes a monolithic implementation of a 3TX, 4RX system with built-in PLL and A2D converters. These devices integrate a DSP subsystem which contains TI's high-performance C674x DSP for radar signal processing. The Arm® Cortex®-R4F-based processor subsystem is responsible for front-end configuration, control, and calibration. Simple programming model changes can enable a wide variety of sensor implementations with the possibility of dynamic reconfiguration for implementing a multimode sensor. The hardware accelerator block (HWA) can perform radar processing and help save MIPS on the DSP for higher-level algorithms.

Features
  • FMCW transceiver:
    • Integrated PLL, transmitter, receiver, baseband, and A2D
    • 76 GHz to 81 GHz coverage with 4 GHz available bandwidth
    • Four receive channels and three transmit channels
    • Ultra-accurate chirp engine based on fractional-N PLL
    • TX power: 12 dBm
  • Built-in calibration and self-test (monitoring):
    • Arm R4F-based radio control system
    • Built-in firmware (ROM)
    • Self-calibrating system across frequency and temperature
  • C674x DSP for FMCW signal processing
  • On-chip memory: 2 MB
  • Cortex-R4F MCU for object tracking and classification, and interface control:
    • Supports autonomous-mode (loading user application from QSPI Flash memory)
  • Power management: built-in LDO network and I/Os supporting dual-voltage (3.3 V, 1.8 V)
  • Other interfaces available for user applications:
    • ADC channels (up to six), SPI channels (up to two), and UARTs (up to two)
    • I2C
    • GPIOs
    • Two-lane LVDS interface for raw ADC data and debug instrumentation
  • Host interfaces: CAN and CAN-FD
  • Integrated peripherals: internal memories with ECC
  • Embedded self-monitoring with no host processor involvement
  • Complex baseband architecture
  • Programmable phase rotators in transmit path to enable beamforming
  • Clock source:
    • Supports an external oscillator, externally driven clock (square/sine), and crystal connection with load capacitors
  • Low-cost, small solution size package: 0.65 mm pitch, 161-pin 10.4 mm x 10.4 mm flip-chip BGA
Applications
  • Smart/automatic door openers
  • Industrial sensors for measuring range, velocity, and angles
  • Tank-level probing radars
  • Field transmitters
  • Traffic monitoring
  • Proximity sensing
  • Security and surveillance
  • Factory automation safety guards
  • People counting
  • Motion detection

IWR1843 Single-Chip mmWave Radar Sensors

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
SENSOR - PROXIMITY VOLTAGEIWR1843AQGABLSENSOR - PROXIMITY VOLTAGE556 - Immediate$203.00View Details
SENSOR - PROXIMITY VOLTAGEIWR1843AQGABLRSENSOR - PROXIMITY VOLTAGE549 - Immediate$212.30View Details

Evaluation Boards

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IWR1843 BOOSTER PACKIWR1843BOOSTIWR1843 BOOSTER PACK0 - Immediate$2,953.64View Details
DEVELOPMENT DATA ACQUISITIONDCA1000EVMDEVELOPMENT DATA ACQUISITION1 - Immediate$5,917.16View Details
Published: 2019-11-25

Related Videos

Design Challenges in Wearable Patient Monitors and Ultrasound Smart Probes
Design Challenges in Wearable Patient Monitors and Ultrasound Smart Probes

Publish Date: 2020-12-21

Enabling the next-generation of industrial robots
Enabling the next-generation of industrial robots

Publish Date: 2019-05-15

Related Product Highlight

IWR1443 mmWave Sensor Texas Instruments' IWR1443 mmWave sensor is an ideal, single-chip solution for low power, self-monitored, ultra-accurate radar systems for industrial applications.
AWR1642 and IWR1642 FMCW Radar Sensors Texas Instruments' AWR1642 and IWR1642 are integrated single-chip FMCW radar sensors capable of operation in the 76 GHz to 81 GHz band.
TPS7A92 Low-Dropout (LDO) Voltage Regulator Texas Instruments' TPS7A92 is a low-noise, high PSRR, low dropout (LDO) regulator capable of sourcing a 2 A load with only 400 mV of maximum dropout.

Related Articles and Blogs

IoT is Available to Everyone Everyone has access to the IoT and the development kits discussed in this article are just a sample of the tools available to IoT designers.
Robotics, the Next Generation To develop intelligent and sophisticated robot systems requires innovative analog and embedded technologies and Texas Instruments offers some helpful products.
Use Millimeter Wave Radar Kits for Fast Development of Precision Object Detection Designs Developers can add the range and accuracy of mmWave radar-based detection to their systems using a single device and accompanying software.