회사 블로그 Mingjiada Supply/Recycle ST L3GD20 Low-Power Three-Axis Angular Rate Sensor, UAV Flight Control Gyroscopes

In drone flight control systems, attitude stabilisation relies on the real-time acquisition of angular velocity data by inertial sensing units. The ST (STMicroelectronics) L3GD20 is a low-power, three-axis MEMS angular velocity sensor with digital output, capable of simultaneously detecting rotational velocity along the X, Y and Z axes. It outputs 16-bit digital angular velocity data via I²C or SPI, making it suitable for applications such as multi-rotor flight control, gimbal stabilisation and robotic attitude sensing. Mingjiada Electronics maintains a long-term supply of ST L3GD20 in stock, whilst also offering stock buy-back and procurement services, providing a one-stop solution for electronic component supply chain requirements.

L3GD20 Product Overview:

The L3GD20 is a low-power three-axis angular rate sensor. It comprises a sensing element and an IC interface, capable of transmitting measured angular rates to external devices via digital interfaces (I²C/SPI).

The L3GD20 has a measurement range of ±250/±500/±2000 dps and supports rate measurement at user-selectable bandwidths. The L3GD20 is housed in a plastic lead grid array (LGA) package and operates reliably within a temperature range of –40 °C to +85 °C.

The L3GD20 belongs to ST’s MEMS motion sensor series and utilises an integrated solution comprising a sensing element and CMOS interface circuitry. It features built-in low-pass and high-pass filters, a temperature sensor, a FIFO and interrupt/data-ready outputs. It operates within a wide supply voltage range of 2.4 V–3.6 V, with I/O compatibility at 1.8 V.

Detailed specifications for the L3GD20:

Type: Three-axis digital gyroscope / angular rate sensor

Range: ±250 / ±500 / ±2000 dps (selectable)

Resolution: 16-bit

Interface: I²C / SPI

Supply voltage: 2.4V–3.6V

Package: LGA-16, approx. 4×4×1.1 mm

Operating temperature: -40°C to +85°C (Subject to the specification sheet)

Typical Applications: UAV flight control, gimbal stabilisation, robotics, attitude measurement, motion tracking

L3GD20 Key Features

Three selectable ranges (250/500/2000 dps)

I²C/SPI digital output interfaces

16-bit angular rate data output

8-bit temperature data output

Two digital output lines (interrupt and data ready)

Integrated low-pass and high-pass filters, supporting user-selectable bandwidth

Wide supply voltage range: 2.4 V to 3.6 V

Low-voltage compatible I/O (1.8 V)

Embedded power-down and sleep modes

Embedded temperature sensor

Embedded FIFO

High shock resistance

Extended operating temperature range (-40 °C to +85 °C)

Typical Applications of the L3GD20 in Drones

Drones place high demands on attitude measurement and angular velocity detection. The L3GD20 can be used in the following areas:

Drone flight control systems: Attitude stabilisation and heading control for quadcopters and multi-rotor drones. It is often paired with accelerometers and magnetometers to form a 9-axis IMU for attitude estimation, and is a classic choice of gyroscope chip for open-source flight control projects (CSDN blog...).

Robotics and self-balancing devices: Attitude sensing for self-balancing vehicles and mobile AGV robots.

Consumer electronics interaction: VR/AR devices, motion capture for game controllers, and gesture recognition for handheld devices.

Industrial navigation and gimbal stabilisation: GPS-aided navigation, camera gimbal stabilisation, and equipment motion monitoring.

Mingjiada Electronics: One-stop service for L3GD20 supply and recycling
Mingjiada Electronics has specialised in the electronic components supply chain for many years, specialising in various genuine electronic components such as chips, sensors, MCUs and power devices. We provide chip supply and recycling services to manufacturers, solution providers and distributors:
Spot Supply: Genuine ST L3GD20 three-axis angular rate sensors are available from stock. Technical specifications are provided, and we support both bulk and small-batch sample requirements, catering to prototype development and mass production procurement for drone projects.
Stock Buyback: We offer cash buyback for ST series sensors, MEMS chips and various types of obsolete ICs. We can assess and quote for project offcuts and discontinued items, helping businesses to utilise idle stock and recover capital.
In addition to the ST L3GD20, Mingjiada Electronics also supplies the full range of ST MEMS sensors, MCUs and power management chips, whilst simultaneously purchasing components from brands such as TI, ADI, Infineon, Sony and Onsemi, covering chip materials for sectors including drones, industrial control, AIoT and automotive electronics.

If you would like to find out more about the ST L3GD20 low-power three-axis angular rate sensor, request samples, or have surplus sensor chips to sell, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further details on supply and demand.
Tags: L3GD20H, L3GD20