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STMicroelectronics LPR503AL
- Part No.:
- LPR503AL
- Manufacturer:
- STMicroelectronics
- Category:
- Gyroscopes
- Package:
- 16-LFLGA
- Datasheet:
-
LPR503AL.pdf
- Description:
- GYROSCOPE DUAL AXIS 16-LGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,985
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Product details
Overview
LPR503AL from STMicroelectronics is a dual-axis MEMS gyroscope measuring angular rate along pitch and roll axes with ±30°/s full-scale range, 140 Hz bandwidth, and analog absolute output (33.3 mV/°/s for 4× amplified outputs). It operates from 2.7 V to 3.6 V, supports -40 °C to +85 °C, and integrates self-test, power-down, and low-pass filtering - used in camera image stabilization and motion-controlled UIs.
For engineers reviewing the LPR503AL datasheet, LPR503AL pinout, LPR503AL application, or LPR503AL equivalent, this page delivers verified mechanical/electrical specs, validated LGA-16 pin functions, real-world use cases in DSC/DVC stabilization and GPS navigation, and confirmed alternatives with documented functional trade-offs.
Technical Context
The LPR503AL implements Coriolis-based sensing using a single micromachined driving mass oscillating continuously; angular rotation induces orthogonal displacement sensed as voltage via charge amplifiers and demodulators. Its CMOS interface IC provides two independent analog output paths per axis - one unamplified (±120°/s FS), one 4× amplified (±30°/s FS) - each with embedded low-pass filtering.
It incorporates a PLL for driving/sensing synchronization requiring external RC components on FILTVDD and VCONT pins, plus digital control inputs (ST, PD, HP) for self-test activation, power-down mode, and high-pass filter reset. Zero-rate level is factory-trimmed to 1.23 V with <0.01°/s/°C drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full Scale Range | ±30°/s (4× amplified outputs); enables precise low-rate motion detection for UI and stabilization |
| Bandwidth | 140 Hz (-3 dB); supports real-time response for handheld device orientation tracking |
| Sensitivity | 33.3 mV/°/s (4× output); yields ~1.0 V swing over full scale at 30°/s, easing ADC resolution requirements |
| Supply Voltage | 2.7 V to 3.6 V; compatible with standard 3.3 V embedded systems without level-shifting |
| Operating Temp | -40 °C to +85 °C; qualified for consumer and industrial ambient environments |
| Zero-Rate Level | 1.23 V (typical); stable reference point for DC-coupled signal conditioning and offset calibration |
| Power Consumption | 6.8 mA (active), 1–5 µA (power-down); extends battery life in portable motion-sensing devices |
Pinout & Package
LPR503AL is housed in a 5 mm × 5 mm × 1.5 mm plastic land grid array (LGA-16) package with exposed pad for thermal and mechanical stability. The bottom-view layout features 16 solder lands arranged in a 4×4 grid, with pin 1 located at top-left corner (marked by chamfer).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Primary 0 V return path for analog and digital sections; must be low-impedance connection |
| 2 FILTVDD | PLL filter node | Connects external RC network (1 MΩ + 4.7 µF) to stabilize phase-locked loop operation |
| 3 VCONT | PLL control voltage | Accepts filtered voltage from FILTVDD to set oscillator frequency and sensing timing |
| 4 OUTY | Y-axis unamplified output | Analog voltage proportional to Y-axis angular rate (8.3 mV/°/s sensitivity) |
| 5 4xINY | Y-axis 4× amplifier input | Input node for external high-pass filter before 4× gain stage; short to Vref if unused |
| 6 4xOUTY | Y-axis 4× amplified output | Buffered analog output (33.3 mV/°/s); low-impedance drive for ADC or signal chain |
| 7 Vref | Internal reference voltage | Stable 1.23 V source for biasing, filtering, and zero-rate calibration |
| 8 4xOUTX | X-axis 4× amplified output | Buffered analog output for X-axis rate; matches 4xOUTY in gain and drive capability |
| 9 4xINX | X-axis 4× amplifier input | Input node for external high-pass filter before X-axis 4× gain stage |
| 10 OUTX | X-axis unamplified output | Analog voltage proportional to X-axis angular rate (8.3 mV/°/s sensitivity) |
| 11 ST | Self-test enable | Logic high applies electrostatic test force; output shift confirms mechanical integrity |
| 12 PD | Power-down control | Logic high reduces current to ≤5 µA; retains configuration state during sleep |
| 13 HP | High-pass filter reset | Logic high resets external HP filter capacitor; recommended at power-on for fast settling |
| 14,15 Res | Reserved | Must be connected to Vdd per datasheet; no internal function or user access |
| 16 Vdd | Supply voltage | 2.7–3.6 V input; requires local 100 nF + 10 µF decoupling per application guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual-axis analog gyroscope | Simultaneous pitch/roll rate sensing with independent X/Y outputs - eliminates need for sensor fusion in basic tilt applications |
| Embedded 4× programmable gain | Two gain paths per axis allow flexible dynamic range selection: ±120°/s (low-gain) or ±30°/s (high-resolution) |
| Integrated self-test | Electrostatic actuation verifies mechanical integrity and signal chain functionality without external rotation equipment |
| Low-power active mode | 6.8 mA supply current enables continuous motion sensing in battery-powered cameras and mobile devices |
| Factory-calibrated zero-rate level | 1.23 V DC offset trimmed at 3 V supply; drift <0.01°/s/°C ensures stable baseline across temperature |
Applications
| Image Stabilization (DVC/DSC) | Camera Phone Stabilization |
|---|---|
|
Use Scenario: Compensating hand tremor during video capture in digital camcorders and DSLRs. IC Role / Device Role / Timing Role: Dual-axis angular rate sensor providing real-time pitch/roll feedback to servo motor or digital image shift controller. Use Value: Enables sub-30°/s motion detection with 140 Hz bandwidth, matching human hand jitter frequencies for effective optical compensation. |
Use Scenario: Reducing blur in still images captured under low-light conditions using electronic image stabilization. IC Role / Device Role / Timing Role: Gyroscope supplying angular velocity data to smartphone SoC for frame-to-frame motion vector correction. Use Value: 33.3 mV/°/s sensitivity on 4× outputs yields >1 V full-scale swing, improving SNR for 10-bit mobile ADCs. |
| Motion-Controlled UI | GPS Navigation Systems |
|
Use Scenario: Tilt-based menu navigation and gesture recognition in portable media players and smart remotes. IC Role / Device Role / Timing Role: Low-latency angular rate transducer feeding orientation data to microcontroller for real-time UI response. Use Value: Power-down mode (<5 µA) allows periodic wake-up sampling, extending coin-cell battery life beyond 6 months. |
Use Scenario: Dead reckoning augmentation during GPS signal loss in automotive and pedestrian navigation units. IC Role / Device Role / Timing Role: Pitch/roll rate sensor fused with accelerometer and magnetometer for heading and attitude estimation. Use Value: -40 °C to +85 °C operating range and <0.03 %/°C sensitivity drift ensure consistent performance across vehicle cabin temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-axis analog gyroscope applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPY550AL | Single-axis (Y-only), same ±30°/s FS, identical LGA-16 package and pinout except missing X-channel signals | Not suitable for pitch+roll applications; only viable where single-axis rate sensing suffices | Select when system requires only yaw or roll rate, enabling PCB layout reuse and simplified BOM |
| ADXRS645 | Single-axis, ±2000°/s FS, digital SPI output, higher noise floor (0.015°/s/√Hz), wider supply (3.15–5.25 V) | Targeted at industrial IMUs; lacks integrated self-test and power-down modes of LPR503AL | Choose for high-dynamic-range inertial measurement where digital interface and shock tolerance (>1000 g) are critical |
Compared with LPY550AL and ADXRS645, the LPR503AL uniquely delivers dual-axis analog outputs with factory-trimmed zero-rate stability, embedded self-test, and ultra-low power-down current - making it optimal for compact, battery-sensitive consumer motion interfaces requiring simultaneous pitch/roll data.
Availability
LPR503AL is available at Aetrix Electronics and suitable for image stabilization in digital cameras, motion-controlled user interfaces, and GPS dead-reckoning systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LPR503AL 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 LPR503AL belongs to ST's MEMS motion sensor product line, engineered specifically for low-power, high-stability angular rate measurement in portable imaging and human-interface applications - leveraging mature LGA packaging and Coriolis-sensing architecture proven across hundreds of millions of deployed units.
FAQ
What is the function of the HP pin on the LPR503AL?
The HP (High Pass Filter Reset) pin resets external high-pass filter capacitors to eliminate DC offset buildup during startup or overload events. When driven logic high, it discharges the HP capacitor, ensuring rapid settling of the output baseline. This is especially critical after power-on or when exiting power-down mode, and must be synchronized with system initialization routines.
Can both amplified and unamplified outputs be used simultaneously on the same axis?
No - the datasheet specifies that using 4xOUTX/Y requires connecting 4xINX/Y to Vref or GND depending on filter configuration, while OUTX/Y must be left floating or terminated appropriately. Simultaneous use introduces crosstalk and violates internal signal routing; only one output path per axis should be active in a given design.
How does the self-test function verify mechanical integrity?
The ST pin activates an electrostatic force that displaces the micromachined driving mass, simulating a known Coriolis acceleration. This produces a predictable DC-level shift (~±100 mV) in both 4xOUTX and 4xOUTY outputs. Measuring this shift against datasheet limits confirms proper actuator movement, sense electrode coupling, and analog signal chain functionality - all without physical rotation.
Why are pins 14 and 15 labeled "Res" and required to connect to Vdd?
Pins 14 and 15 are reserved internal nodes tied to the LGA package's die substrate potential. Connecting them to Vdd ensures proper biasing of internal ESD protection structures and stabilizes the reference plane for the PLL and analog front-end. Leaving them unconnected risks increased noise susceptibility and potential latch-up under transient conditions.
LPR503AL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 16-LFLGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Analog
- Axis:
- X (Pitch), Y (Roll)
- Range °/s:
- ±30
- Sensitivity (LSB/(°/s)):
- -
- Sensitivity (mV/°/s):
- 33.3
- Bandwidth:
- 140Hz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 2.7V ~ 3.6V
- Current - Supply:
- 6.8 mA
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
LPR503AL FAQ
1.How can I place an order for LPR503AL through Aetrix?
Please submit a Request for Quotation (RFQ) for LPR503AL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LPR503AL reliable?
The price and inventory of LPR503AL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPR503AL is usually 5 days.
3.What payment methods are accepted for LPR503AL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPR503AL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPR503AL?
LPR503AL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPR503AL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LPR503AL?
For technical support, including LPR503AL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPR503AL requirements.
6.How does Aetrix verify that LPR503AL is sourced from the original manufacturer or authorized distributors?
All LPR503AL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LPR503AL meets industry standards.
7.What is the process for return or replacement of LPR503AL?
All LPR503AL units undergo pre-shipment inspection (PSI). If there is an issue with LPR503AL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LPR503AL part is unused and in its original packaging.
Return procedure for LPR503AL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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