STMicroelectronics LY510ALHTR

Overview

LY510ALHTR from STMicroelectronics is a single-axis MEMS yaw-rate gyroscope delivering analog angular rate output with ±100 °/s full-scale range, 140 Hz bandwidth, and 10 mV/°/s sensitivity on the 4x amplified output. It operates from 2.7–3.6 V over –40°C to +85°C and integrates self-test, power-down, and embedded low-pass filtering-used in motion-controlled pointing devices and GPS-aided navigation systems.

For engineers reviewing the LY510ALHTR datasheet, LY510ALHTR pinout, LY510ALHTR application, or LY510ALHTR equivalent, key selection criteria include its dual-output architecture (amplified vs. non-amplified), temperature-stable zero-rate level (±0.02 °/s/°C drift), integrated PLL-based drive circuitry, and LGA-16 package compatibility with high-shock industrial environments.

Technical Context

The LY510ALHTR implements a Coriolis-effect-based single-mass micromachined structure driven by a phase-locked loop (PLL) for stable oscillation, with demodulation and charge amplification performed on-chip. Its analog outputs are conditioned through internal low-pass filtering and support external high-pass reset via the HP pin.

It features two independent analog outputs: OUTZ (non-amplified, ±400 °/s FS, 2.5 mV/°/s) and 4xOUTZ (amplified, ±100 °/s FS, 10 mV/°/s), both referenced to a factory-trimmed 1.23 V zero-rate level. Self-test activation (ST pin high) induces electrostatic actuation to verify mechanical integrity without external rotation.

Key Specifications

Pinout & Package

LGA-16 (5 mm × 5 mm × 1.5 mm) land grid array package with exposed thermal pad; RoHS-compliant ECOPACK® construction qualified per JEDEC J-STD-020C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-axis analog gyroscope applications.

Compared with ADXRS450 and ENC-03R, LY510ALHTR provides factory-calibrated analog outputs with integrated self-test and ultra-low power-down current-making it optimal for production-ready motion interfaces requiring minimal external components and guaranteed baseline stability.

Availability

LY510ALHTR is available at Aetrix Electronics and suitable for GPS-aided navigation systems, motion-controlled pointing devices, industrial robot joint feedback, and game controller motion sensing requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LY510ALHTR 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, designing and manufacturing MEMS sensors, microcontrollers, power ICs, and automotive electronics with vertical fabrication capability.

The LY510ALHTR belongs to ST's high-stability analog MEMS gyroscope product line, engineered specifically for motion-sensing applications demanding factory-trimmed accuracy, shock resilience, and seamless integration into resource-constrained embedded systems.

FAQ

What is the function of the HP pin on LY510ALHTR?

The HP (High Pass Filter Reset) pin resets an optional external high-pass filter capacitor to prevent output saturation during startup or overload events. When driven high, it discharges the external HP capacitor, ensuring the output begins at the correct zero-rate level. This is especially critical after power-on or when exiting power-down mode, and is recommended in all designs using external HP filtering.

Can LY510ALHTR operate without external passive components?

Yes-LY510ALHTR functions with only Vdd decoupling (10 µF + 100 nF) and GND connections. The PLL, low-pass filter, and reference generation are fully integrated. External resistors/capacitors at FILTVDD and VCONT pins are required only if custom PLL loop response tuning is needed; default operation uses internal settings.

How does the self-test function verify sensor integrity?

Asserting ST = Vdd applies an electrostatic force that displaces the micromachined proof mass, generating a known DC voltage shift at 4xOUTZ and OUTZ proportional to supply voltage. A measured shift within ±100 mV of expected value confirms both mechanical resonance and analog signal chain functionality-no external rotation or equipment is needed.

Is LY510ALHTR pin-compatible with other ST gyros like LY520ALH?

No-LY510ALHTR uses a 16-pin LGA package with unique pin assignments including dual analog outputs (4xOUTZ/OUTZ), HP, and PLL-related pins (FILTVDD/VCONT). LY520ALH is a 3-axis digital (I²C/SPI) device in a different package and has no pin or functional equivalence.