0
IWR1843
  • IWR1843
  • IWR1843
  • IWR1843

IWR1843

ACTIVE

Single-chip 76-GHz to 81-GHz industrial radar sensor integrating DSP, MCU and radar accelerator

Texas Instruments IWR1843 Product Info

1 April 2026 0

Parameters

Type

IC

Frequency range

76 - 81 GHz

Number of receivers

4

Number of transmitters

3

ADC sampling rate (ksps)

25000

TX power (dBm)

12

Arm CPU

Arm Cortex-R4F at 200 MHz

Hardware accelerators

Radar hardware accelerator

Edge AI enabled

Yes

DSP type

1 C67x DSP @ 600MHz

Interface type

CAN, CAN-FD, I2C, LVDS, QSPI, SPI, UART

RAM (kByte)

2048

Operating temperature range (°C)

-40 to 125

TI functional safety category

Functional Safety-Compliant

Security

Cryptographic acceleration, Device attestation & anti-counterfeit, Secure boot, Secure firmware & software update, Software IP protection

Power supply solution

LP87702-Q1, LP87745-Q1

Rating

Catalog

Package

FCCSP (ABL)-161-108.16 mm² 10.4 x 10.4

Features

  • FMCW transceiver
    • Integrated PLL, transmitter, receiver, Baseband, and ADC
    • 76 to 81GHz coverage with 4GHz available bandwidth
    • Four receive channels
    • Three transmit channels
    • Ultra-accurate chirp engine based on fractional-N PLL
    • TX power: 12dBm
  • Built-in calibration and self-test (monitoring)
    • Arm Cortex-R4F-based radio control system
    • Built-in firmware (ROM)
    • Self-calibrating system across process and temperature
  • C674x DSP for FMCW signal processing
  • On-chip Memory: 2MB
  • Cortex-R4F microcontroller for object tracking and classification, and interface control
    • Supports autonomous mode (loading user application from QSPI flash memory)
  • Integrated peripherals
    • Internal memories With ECC
  • Host interface
    • CAN and CAN-FD
  • Other interfaces available to user application
    • Up to 6 ADC channels
    • Up to 2 SPI channels
    • Up to 2 UARTs
    • I2C
    • GPIOs
    • 2-lane LVDS interface for raw ADC data and debug instrumentation
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation available to aid IEC 61508 functional safety system design up to SIL 3
    • Hardware integrity up to SIL-2
    • Safety-related certification
  • Device advanced features
    • Embedded self-monitoring with no host processor involvement
    • Complex baseband architecture
    • Embedded interference detection capability
    • Programmable phase rotators in transmit path to enable beam forming
  • Power management
    • Built-in LDO network for enhanced PSRR
    • I/Os support dual voltage 3.3V/1.8V
  • Clock source
    • Supports external oscillator at 40MHz
    • Supports externally driven clock (square/sine) at 40MHz
    • Supports 40MHz crystal connection with load capacitors
  • Easy hardware design
    • 0.65mm pitch, 161-pin 10.4mm × 10.4mmflip chip BGA package for easy assembly and low-cost PCB design
    • Small solution size
  • Operating Conditions
    • Junction temp range: –40°C to 125°C
  • FMCW transceiver
    • Integrated PLL, transmitter, receiver, Baseband, and ADC
    • 76 to 81GHz coverage with 4GHz available bandwidth
    • Four receive channels
    • Three transmit channels
    • Ultra-accurate chirp engine based on fractional-N PLL
    • TX power: 12dBm
  • Built-in calibration and self-test (monitoring)
    • Arm Cortex-R4F-based radio control system
    • Built-in firmware (ROM)
    • Self-calibrating system across process and temperature
  • C674x DSP for FMCW signal processing
  • On-chip Memory: 2MB
  • Cortex-R4F microcontroller for object tracking and classification, and interface control
    • Supports autonomous mode (loading user application from QSPI flash memory)
  • Integrated peripherals
    • Internal memories With ECC
  • Host interface
    • CAN and CAN-FD
  • Other interfaces available to user application
    • Up to 6 ADC channels
    • Up to 2 SPI channels
    • Up to 2 UARTs
    • I2C
    • GPIOs
    • 2-lane LVDS interface for raw ADC data and debug instrumentation
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation available to aid IEC 61508 functional safety system design up to SIL 3
    • Hardware integrity up to SIL-2
    • Safety-related certification
  • Device advanced features
    • Embedded self-monitoring with no host processor involvement
    • Complex baseband architecture
    • Embedded interference detection capability
    • Programmable phase rotators in transmit path to enable beam forming
  • Power management
    • Built-in LDO network for enhanced PSRR
    • I/Os support dual voltage 3.3V/1.8V
  • Clock source
    • Supports external oscillator at 40MHz
    • Supports externally driven clock (square/sine) at 40MHz
    • Supports 40MHz crystal connection with load capacitors
  • Easy hardware design
    • 0.65mm pitch, 161-pin 10.4mm × 10.4mmflip chip BGA package for easy assembly and low-cost PCB design
    • Small solution size
  • Operating Conditions
    • Junction temp range: –40°C to 125°C

Description

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

The IWR1843 device is a self-contained, single-chip solution that simplifies the implementation of mmWave sensors in the band of 76 to 81GHz. The IWR1843 includes a monolithic implementation of a 3TX, 4RX system with built-in PLL, and ADC converters. The IWR1843 also integrates a DSP subsystem, which contains a TI high-performance C674x DSP for the radar signal processing. The device includes an ARM R4F-based processor subsystem, which is responsible for front-end configuration, control, and calibration. Simple programming model changes can enable a wide variety of sensor implementation with the possibility of dynamic reconfiguration for implementing a multimode sensor. The Hardware Accelerator block (HWA) can perform radar processing and can help save MIPS on the DSP for higher-level algorithms. Additionally, the device is provided as a complete platform solution including TI reference designs, software drivers, sample configurations, API guides, training, and user documentation.

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

The IWR1843 device is a self-contained, single-chip solution that simplifies the implementation of mmWave sensors in the band of 76 to 81GHz. The IWR1843 includes a monolithic implementation of a 3TX, 4RX system with built-in PLL, and ADC converters. The IWR1843 also integrates a DSP subsystem, which contains a TI high-performance C674x DSP for the radar signal processing. The device includes an ARM R4F-based processor subsystem, which is responsible for front-end configuration, control, and calibration. Simple programming model changes can enable a wide variety of sensor implementation with the possibility of dynamic reconfiguration for implementing a multimode sensor. The Hardware Accelerator block (HWA) can perform radar processing and can help save MIPS on the DSP for higher-level algorithms. Additionally, the device is provided as a complete platform solution including TI reference designs, software drivers, sample configurations, API guides, training, and user documentation.

Subscribe to Welllinkchips !
Your Name
* Email
Submit a request