STMicroelectronics LPY503AL

Overview

LPY503AL from STMicroelectronics is a dual-axis MEMS gyroscope measuring angular rate along pitch and yaw axes with ±30°/s full-scale range, 140 Hz bandwidth, and analog voltage outputs (1× and 4× amplified). It operates from 2.7–3.6 V, supports -40°C to +85°C, and integrates self-test, power-down, and embedded low-pass filtering for image stabilization and motion control systems.

For engineers reviewing the LPY503AL datasheet, LPY503AL pinout, LPY503AL application, or LPY503AL equivalent, this page delivers verified mechanical and electrical specifications, LGA-16 package layout, real-world use scenarios in DSC/DVC stabilization and robotics, and validated alternative gyroscopes with documented functional differences.

Technical Context

The LPY503AL implements a single micromachined driving mass oscillating continuously; angular rotation induces Coriolis force detected by integrated capacitive sensing elements. A dedicated CMOS interface IC conditions signals, provides reference voltage (1.23 V), and drives dual analog outputs per axis - one unamplified (±120°/s FS) and one 4× amplified (±30°/s FS).

It embeds a PLL-based timing architecture synchronized to the mechanical resonator, requiring external RC components on FILTVDD and VCONT pins. Output filtering combines internal 140 Hz low-pass response with optional external high-pass reset via HP pin, enabling fast recovery after overload or power-up.

Key Specifications

Pinout & Package

LPY503AL is housed in a 5 mm × 5 mm × 1.5 mm plastic land grid array (LGA-16) package with bottom-side solder pads. The package supports automated reflow assembly and meets JEDEC J-STD-020C thermal requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LPY515AH and ADXRS620, the LPY503AL uniquely delivers dual-axis analog outputs with selectable gain, embedded self-test, and HP reset in a single LGA-16 package-enabling compact, low-BOM-count stabilization systems without external signal conditioning.

Availability

LPY503AL is available at Aetrix Electronics and suitable for image stabilization in digital cameras, motion-control user interfaces in portable devices, and industrial robotics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LPY503AL 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, designing and manufacturing analog, MEMS, power, and microcontroller solutions for industrial, automotive, and consumer markets.

The LPY503AL belongs to ST's precision MEMS gyroscope product line, engineered specifically for compact, low-power motion sensing in consumer imaging and human-interface applications where analog output simplicity and thermal stability are critical.

FAQ

What is the function of the HP pin on LPY503AL?

The HP (High Pass Filter Reset) pin is a logic-controlled input that resets external high-pass filter capacitors. When driven high, it discharges the capacitor to eliminate DC settling delay-especially useful after power-up or during overload recovery. It does not affect internal circuitry and requires no pull-up/down resistor.

How do I interface LPY503AL's 4× amplified outputs to an ADC?

4xOUTX and 4xOUTZ provide buffered analog outputs with 33.3 mV/°/s sensitivity and 1.23 V zero-rate level. Connect directly to a 10-bit+ ADC with Vref = 3.3 V; full-scale rotation yields ~1.0 V swing. Ensure local 100 nF decoupling at Vdd and avoid routing near noisy digital traces.

Does LPY503AL require external passive components for basic operation?

Yes: two external RC networks are mandatory-one on FILTVDD/VCONT pins (1 MΩ + 4.7 µF typical) for PLL loop filtering, and decoupling capacitors (100 nF ceramic + 10 µF aluminum) on Vdd/GND. Optional external LP/HP filters may be added but are not required for baseline functionality.

Can LPY503AL operate from a 3.3 V supply with guaranteed performance?

Yes: LPY503AL is fully specified and factory-calibrated at 3.0 V, with guaranteed operation across 2.7–3.6 V. At 3.3 V, all parameters-including sensitivity (33.3 mV/°/s), zero-rate level (1.23 V), and bandwidth (140 Hz)-remain valid per datasheet Table 3 and Table 4.