STMicroelectronics LY3200ALHTR

Overview

LY3200ALHTR from STMicroelectronics is a single-axis MEMS yaw-rate gyroscope delivering analog angular-rate output with ±2000 dps full-scale range, 140 Hz bandwidth, and 0.67 mV/dps sensitivity. It operates from 2.7 V to 3.6 V over −40°C to +85°C and integrates self-test, sleep mode, and power-down functions. Used in motion-sensing user interfaces for gaming controllers and robotics.

For engineers reviewing the LY3200ALHTR datasheet, LY3200ALHTR pinout, LY3200ALHTR application, or LY3200ALHTR equivalent, key selection criteria include analog output linearity (±1% FS), zero-rate drift (0.09 dps/°C), low-power sleep mode (2.2 mA), and LGA-10 mechanical compatibility for compact PCB layout.

Technical Context

The LY3200ALHTR implements a Coriolis-effect-based sensing mass driven by a PLL-synchronized oscillator, with signal conditioning performed by an integrated CMOS interface IC. Its analog output voltage (OUTZ) scales linearly with applied yaw rate relative to a 1.5 V zero-rate level referenced to Vref.

It supports three operating modes-normal, sleep (2.2 mA), and power-down (5 µA)-controlled via dedicated ST and SLEEP/PD pins. The internal low-pass filter, configured externally at VCONT, sets the −3 dB bandwidth up to 140 Hz and suppresses high-frequency noise without digital processing.

Key Specifications

Pinout & Package

The LY3200ALHTR is housed in a 3 mm × 5 mm × 1 mm plastic land grid array (LGA-10) package with exposed die pad for thermal and mechanical stability. Pin numbering follows top-view orientation with Pin 1 located at top-left corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar yaw-rate sensing applications.

Compared with ADXRS453EBYZ-RL and MPU-6050, the LY3200ALHTR offers optimized analog simplicity, lowest power sleep mode (2.2 mA), and built-in self-test-making it ideal for battery-powered pointing devices where minimal external components and functional verification are critical.

Availability

LY3200ALHTR is available at Aetrix Electronics and suitable for gaming controllers, industrial robotics, and human-machine interface applications requiring stable component supply, long-term manufacturability, and RoHS-compliant LGA packaging.

Supply support for LY3200ALHTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, with manufacturing and R&D operations across Europe, Asia, and the Americas.

The LY3200ALHTR belongs to ST's high-performance analog MEMS gyroscope product line, designed specifically for motion-sensing user interfaces demanding low power, analog simplicity, and robust mechanical reliability in consumer and industrial settings.

FAQ

What is the recommended external circuit for the VCONT pin?

The VCONT pin requires an external RC low-pass filter to stabilize the internal PLL. ST recommends a 10 kΩ resistor in series with a 100 nF capacitor to ground, as shown in Figure 3 of the datasheet. This configuration sets the −3 dB bandwidth to 140 Hz and minimizes phase noise in the sensing loop. Deviations may shift bandwidth or induce instability in the drive-sense synchronization.

How does the self-test function verify sensor integrity?

The self-test applies an electrostatic force to the MEMS sensing mass, emulating a known Coriolis acceleration. When ST = Vdd, the output voltage shifts by ~400 mV from its zero-rate level-confirming both mechanical mobility and analog signal chain functionality. This test requires no external motion and can be performed in-system during power-up or diagnostics.

Is the analog output ratiometric to supply voltage?

No. The LY3200ALHTR's analog output (OUTZ) and zero-rate level (1.5 V) are referenced to the internal Vref pin-not Vdd-so output scaling remains stable across supply variations from 2.7 V to 3.6 V. Sensitivity (0.67 mV/dps) and zero-rate level are explicitly non-ratiometric, enabling consistent calibration independent of LDO tolerance.

Can Pins 5 and 10 (Res) be left floating?

Yes. Pins 5 and 10 are reserved and have no internal connection. ST specifies they may be left unconnected or tied to Vdd-neither configuration affects operation. Leaving them floating introduces no risk, but tying to Vdd improves mechanical symmetry and may aid in automated optical inspection (AOI) during assembly.