AWR2188 - 8RX/8TX 76-81GHz FMCW Transceiver | Texas Instruments
MPN: AWR2188 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $45 | $45.00 |
| 10 | $40.5 | $405.00 |
| 100 | $36 | $3,600.00 |
| 500 | $32.4 | $16,200.00 |
| 1,000 | $29 | $29,000.00 |
AWR2188 Overview
A radar transceiver is a device that both transmits and receives radio frequency signals to detect objects and measure their distance, velocity, and angle. In automotive radar, FMCW (Frequency-Modulated Continuous Wave) transceivers are essential for advanced driver-assistance systems (ADAS) and autonomous driving, as they provide robust object detection in all weather conditions. The AWR2188 sits at the top of the radar signal chain, converting RF signals to digital data for processing by a host MCU or DSP.
Key features include 8TX/8RX channels for high angular resolution, cascadable architecture for multiple-device synchronization, and LoP technology that eliminates the need for external antenna packaging, reducing system cost and size. The device supports a wide frequency range of 76-81GHz, enabling both long-range and short-range radar applications. It also includes built-in self-monitoring and calibration features for reliable operation.
Technically, the AWR2188 integrates a fractional-N PLL, multiple ADC channels, and a digital signal processing chain. The cascadable interface allows multiple devices to be synchronized for a larger virtual antenna array, improving angular resolution. The LoP package integrates the antenna on the package itself, simplifying PCB design and reducing signal losses. The device operates from a 1.8V core supply and includes multiple power management features.
Typical applications include automotive radar for adaptive cruise control, autonomous emergency braking, and blind-spot detection. It is also used in industrial radar for level sensing and motion detection. The high integration and small form factor make it ideal for space-constrained designs.
When designing with the AWR2188, ensure proper power supply decoupling and thermal management, as the device dissipates significant power during operation. The cascadable interface requires careful clock synchronization for multi-device systems.
Drop-in alternatives for AWR2188 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AWR2188LOP
✅ Drop-In📋 Reference alternative (not in catalog)
AWR2243
⚡ Same Package📋 Reference alternative (not in catalog)
AWR2188 Specifications
| Frequency Range | 76 GHz to 81 GHz |
| Number of Transmit Channels | 8 |
| Number of Receive Channels | 8 |
| Modulation | FMCW |
| Package Type | LOP (Launch-on-Package) |
| Cascadable | Yes |
| Supply Voltage | 1.8 V core |
| Interface | CSI2, SPI, UART |
| RoHS | Compliant |
| Mounting Type | Surface Mount |
AWR2188 Pin Configuration
| Pin A1 | VDD — Core power supply |
| Pin B1 | GND — Ground |
| Pin C1 | TX1 — Transmit channel 1 |
| Pin D1 | RX1 — Receive channel 1 |
| Pin E1 | SPI_CLK — SPI clock |
| Pin F1 | SPI_MOSI — SPI data in |
| Pin G1 | SPI_MISO — SPI data out |
| Pin H1 | CSI2_TX — CSI2 transmit data |
| Pin J1 | UART_TX — UART transmit |
| Pin K1 | UART_RX — UART receive |
Typical Applications
AWR2188 is suitable for 6 applications: Automotive Radar, Industrial Radar, Imaging Radar, Drone Radar, Smart Infrastructure, Medical Radar.
Automotive Radar
The AWR2188 is ideal for automotive radar systems such as adaptive cruise control, autonomous emergency braking, and blind-spot detection. Its 8TX/8RX channels provide high angular resolution for accurate object detection. The 76-81GHz band enables long-range and short-range sensing. The cascadable architecture allows multiple devices to create a virtual antenna array for 360-degree coverage. The small form factor and LoP technology simplify integration into vehicles.
Recommended
Industrial Radar
The AWR2188 is used in industrial radar for level sensing, motion detection, and object tracking. Its high frequency and bandwidth provide precise measurements. The device's low power consumption and self-monitoring features make it suitable for industrial environments. The cascadable interface enables scalable systems for large-area monitoring. The LoP package reduces system cost and size, making it easy to integrate into industrial equipment.
Recommended
Imaging Radar
The AWR2188's 8TX/8RX channels enable high-resolution imaging radar for autonomous vehicles and surveillance. The wide bandwidth provides fine range resolution, while the multiple channels allow for precise angle estimation. The cascadable architecture supports larger virtual arrays for enhanced imaging. The device's integrated calibration and self-monitoring ensure reliable operation. The small form factor allows for compact radar modules.
Recommended
Drone Radar
The AWR2188 is suitable for drone radar for obstacle avoidance and altitude measurement. Its small size and low power consumption are critical for UAV applications. The 76-81GHz band provides high accuracy in a compact form factor. The device's self-monitoring features enhance reliability in flight. The cascadable interface allows for multi-radar systems on larger drones.
Recommended
Smart Infrastructure
The AWR2188 is used in smart infrastructure for traffic monitoring, people counting, and security. Its high resolution and accuracy enable reliable detection in various conditions. The device's cascadable architecture allows for wide-area coverage. The LoP package simplifies installation. The low power consumption is beneficial for battery-powered sensors.
Recommended
Medical Radar
The AWR2188 can be used in medical radar for vital sign monitoring and patient detection. Its high frequency and sensitivity allow for non-contact monitoring. The device's small size and low power are suitable for wearable devices. The self-monitoring features ensure safety. The cascadable interface enables multi-sensor systems for comprehensive monitoring.
Recommended
Recommended Products Summary
Engineering reference data for AWR2188 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AWR2188LOP | AWR2243 |
|---|---|---|---|
| Package | LOP | LOP | LOP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| TX Channels | 8 | 8 | 4 |
| RX Channels | 8 | 8 | 4 |
| Frequency Range | 76-81 GHz | 76-81 GHz | 76-81 GHz |
| Cascadable | Yes | Yes | Yes |
| Launch-on-Package | Yes | Yes | Yes |
| Price (1pc) | $45.00 | $45.00 | $30.00 |
Key Differentiators
- 8TX/8RX channels for high angular resolution (vs AWR2243)
- Launch-on-Package technology (vs AWR2243)
- Cascadable architecture (vs AWR2243)
Design Notes
The AWR2188 requires a clean 1.8V core supply. Use low-ESR ceramic capacitors close to the power pins. A dedicated LDO or switching regulator with low ripple is recommended. Ensure adequate decoupling for the RF sections to avoid noise coupling.
The AWR2188 dissipates significant power during operation. Provide a thermal pad connected to a large copper area on the PCB. Consider a heatsink or forced airflow for high-duty-cycle applications. Monitor junction temperature to prevent overheating.
For the RF channels, use controlled impedance traces and keep them short. The LoP package integrates antennas, so no external antenna design is needed. Ensure proper grounding and via stitching around the RF area. Follow TI's layout guidelines in the datasheet.
Compliance Information
RoHS compliant per TI product page. AEC-Q100 not specified for this device.
