STMicroelectronics LISY300AL

Overview

LISY300AL from STMicroelectronics is a single-axis MEMS yaw rate gyroscope delivering absolute analog output voltage proportional to angular velocity about the Z-axis, with ±300°/s full-scale range, 3.3 mV/(°/s) sensitivity, and 88 Hz −3 dB bandwidth at CACT = 10 nF. It operates from 2.7–3.6 V, consumes 4.8 mA in active mode, and supports self-test and power-down functions for motion-sensing applications in consumer electronics.

For engineers reviewing the LISY300AL datasheet, LISY300AL pinout, LISY300AL application, or LISY300AL equivalent, key selection criteria include analog output linearity (±0.8% FS), zero-rate level stability (1.65 V ±5 °/s over temperature), shock survivability (10,000 g), and LGA-28 package compatibility with PCB-level mechanical stress considerations.

Technical Context

The LISY300AL integrates a micromachined silicon sensing element with a dedicated CMOS interface IC, featuring embedded PLL-based drive/sense synchronization, switched-capacitor and active low-pass filtering stages, and automatic gain control. Its analog conditioning path includes trans-impedance amplification, phase generation, demodulation, and PID-controlled feedback.

Signal chain architecture enables DC-coupled rate measurement with user-selectable bandwidth via external capacitor CACT (pin #5 to pin #6), while on-chip PLL requires external R1/C1/C2 components (9.5 kΩ, 450 nF, 9 nF) at FILTVDD and VCONT pads to stabilize oscillation and suppress jitter-induced noise.

Key Specifications

Pinout & Package

The LISY300AL is housed in a 7 mm × 7 mm × 1.5 mm LGA-28 package with 28 lands arranged in a grid; land pattern follows JEDEC MO-220 standards and requires controlled solder reflow per J-STD-020C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADXRS610 and ENC-03R, the LISY300AL uniquely balances analog simplicity, integrated diagnostics, and MEMS robustness-making it optimal for consumer motion interfaces where fast start-up, low quiescent current, and field-verifiable self-test are mandatory.

Availability

LISY300AL is available at Aetrix Electronics and suitable for gaming input devices, image stabilization systems, GPS navigation aiding, and robotics motion control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LISY300AL 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 microcontrollers, sensors, power ICs, and analog/mixed-signal devices for industrial, automotive, and consumer markets.

The LISY300AL belongs to ST's MEMS inertial sensor product line, engineered specifically for low-power, high-reliability analog yaw rate sensing in human-interface and motion-control applications where DC accuracy and mechanical ruggedness are critical.

FAQ

What is the recommended external capacitor value for CACT to achieve 50 Hz bandwidth?

Using the formula ftA = 1/(2π·RACT·CACT) with RACT = 180 kΩ, a 17.7 nF capacitor yields ~50 Hz −3 dB bandwidth. A standard 18 nF ceramic capacitor (±10%) meets this requirement and maintains stability within datasheet tolerances.

How does the self-test function verify sensor integrity?

The self-test applies an electrostatic force to the MEMS structure, inducing a known Coriolis-like displacement that shifts the ANALOG OUTPUT by +300 mV. Measuring this precise voltage change confirms both mechanical resonance and analog signal chain functionality without external motion.

Can the LISY300AL operate reliably after reflow soldering?

Yes-the LGA-28 package is qualified to JEDEC J-STD-020C reflow profiles. ST specifies peak temperature ≤260 °C for ≤30 seconds; proper land pattern, solder paste volume, and thermal profiling ensure mechanical integrity and avoid die stress-induced zero-rate shift.

Why are three Vdd and two GND pins provided in the LGA-28 layout?

Multiple Vdd and GND connections minimize power delivery impedance and reduce ground bounce, preserving analog signal fidelity. This layout lowers PSRR and improves noise immunity-critical for maintaining <0.8% FS linearity in noisy PCB environments.