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Melexis Technologies NV MLX90340EDC-AAA-400-RE
- Part No.:
- MLX90340EDC-AAA-400-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90340EDC-AAA-400-RE.pdf
- Description:
- TRIAXIS PROG ROTARY/LINEAR POSIT
- Quantity:
- Payment:
- Shipping:
Inventory:2,390
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Product details
Overview
MLX90340EDC-AAA-400-RE from Melexis is a Triaxis® Hall-effect absolute rotary position sensor IC in SOIC-8 package, delivering 270° pre-programmed ratiometric analog output with 12-bit resolution and ±0.5° typical angular accuracy over -40°C to +85°C. It senses Bx, By, Bz magnetic vector components to decode magnet position without contact, enabling robust sensing in industrial motor feedback and valve actuation systems.
For engineers reviewing the MLX90340EDC-AAA-400-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 terminal mapping, programmable transfer characteristics, thermal accuracy validation, and direct alternatives for 270° analog-output position sensing designs.
Technical Context
The MLX90340EDC-AAA-400-RE integrates a tri-axis Hall front-end, 15-bit ADC, 16-bit RISC microcontroller, and on-chip DSP firmware to compute magnetic angle via CoRDiC-based arctangent calculation of two orthogonal flux components. Its analog output stage uses a 12-bit DAC with ratiometric scaling referenced to VDD.
This variant is factory-programmed for 270° full-scale analog transfer (80% VDD / 270°), with clamping, offset, and gain parameters fixed per AAA-400 option. It operates with 2.7–24 V supply, includes EEPROM with Hamming ECC for calibration storage, and supports self-diagnostic modes including open-circuit and short-circuit detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Ratiometric analog voltage (0.2×VDD to 0.8×VDD over 270° mechanical rotation) |
| Angular Resolution | 12-bit (4096 steps over 270°, ≈0.066°/LSB) |
| Thermal Accuracy | ±10° over -40°C to +85°C (10-bit effective thermal accuracy) |
| Supply Voltage Range | 2.7 V to 24 V - supports wide-input industrial power rails without external regulators |
| Magnetic Sensing | Triaxis® (Bx, By, Bz) - enables single-die absolute angle measurement without external concentrators |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade environmental stress |
| Package | SOIC-8 - surface-mount compatible with standard reflow profiles and IPC-7351B footprint |
Pinout & Package
MLX90340EDC-AAA-400-RE is housed in an RoHS-compliant SOIC-8 package (5.3 mm × 4.4 mm × 1.75 mm body, 1.27 mm pitch). Unused and test pins must be grounded for optimal EMC performance per datasheet recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Primary power supply input | Accepts 2.7–24 V; powers analog front-end, digital core, and output buffer |
| 2 - Test Input | Factory test interface | No user function; recommended to connect to GND for EMC stability |
| 3 - Test | Factory test interface | No user function; recommended to connect to GND for EMC stability |
| 4 - Not Used | Unbonded pad | Must be connected to VSS to minimize noise coupling and improve immunity |
| 5 - OUT | Analog output signal | Ratiometric voltage (0.2–0.8×VDD) representing 0–270° position; drives 1 kΩ load |
| 6 - Test1 | Factory test interface | No user function; recommended to connect to GND for EMC stability |
| 7 - VDIG | Internal 3.3 V regulator output | Provides regulated supply for internal digital circuitry; bypass with 100 nF to VSS |
| 8 - VSS | Ground reference | Common return for analog and digital domains; requires low-impedance PCB connection |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D magnetic sensing | Enables true absolute angle measurement from a single die using orthogonal B-field components, eliminating need for dual-Hall arrangements or external flux guides |
| Pre-programmed 270° analog transfer | Factory-calibrated linear output (0.2–0.8×VDD) across full 270° mechanical range - no field programming required for deployment |
| On-chip DSP with ROM firmware | Executes real-time CoRDiC angle computation and front-end compensation, ensuring consistent thermal drift behavior vs. analog-only solutions |
| EEPROM with Hamming ECC | Stores calibration data with error correction, supporting >100k write cycles and reliable retention over 15 years at 85°C |
| Integrated diagnostics | Detects open-circuit, short-to-rail, and supply faults - outputs fail-safe voltage level during fault conditions |
Applications
| Industrial Motor Feedback | Valve Position Monitoring |
|---|---|
|
Use Scenario: Closed-loop control of brushless DC motor commutation in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Absolute rotor angle sensor providing real-time 270° electrical position feedback to MCU for precise sinusoidal current injection. Use Value: Eliminates resolvers and optical encoders; maintains ±0.5° accuracy across temperature without recalibration, reducing system BOM and assembly complexity. |
Use Scenario: Monitoring rotational position of quarter-turn ball valves in water treatment and chemical dosing systems. IC Role / Device Role / Timing Role: Non-contact position transducer converting valve stem rotation into analog voltage proportional to open/closed state. Use Value: Resists moisture, dust, and vibration; delivers stable 270° output even after 10M mechanical cycles, extending service life beyond potentiometer-based alternatives. |
| Steering Angle Sensing | Rotary Joystick Interface |
|
Use Scenario: Primary steering angle measurement in electric power steering (EPS) assist modules. IC Role / Device Role / Timing Role: Redundant-capable position sensor supplying safety-critical angular data to ASIL-B controller via analog channel. Use Value: Meets ISO 26262 functional safety requirements through built-in diagnostics and deterministic latency (<1 ms), with no moving contacts to wear out. |
Use Scenario: Human-machine interface in medical imaging equipment requiring precise 270° knob rotation for parameter adjustment. IC Role / Device Role / Timing Role: High-fidelity analog position encoder translating manual knob motion into calibrated voltage for ADC sampling. Use Value: Delivers 12-bit linearity (INL < ±0.1%) and zero hysteresis - critical for repeatable dose control and diagnostic repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute rotary position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90365KDC-AAA-200-RE | Same SOIC-8 package but 360° pre-programmed analog output; higher thermal accuracy (±0.3° typ); includes integrated EEPROM lock feature | Requires full 360° mechanical travel; better suited for continuous rotation applications like robotic joints | Select when full-circle sensing is needed and tighter angular tolerance is required; not drop-in due to different transfer curve scaling |
| AS5055A-DSOT | 14-bit resolution, SPI digital output only, no analog/PWM option; requires external MCU for angle processing; smaller TSSOP-16 package | Designed for space-constrained PCBs where digital bus integration is preferred over analog voltage output | Choose when system already uses SPI peripherals and digital filtering is acceptable; not compatible for analog-signal chain replacement |
Compared with MLX90340EDC-AAA-400-RE, the MLX90365 offers extended angular range and enhanced accuracy but lacks identical 270° transfer; the AS5055A provides higher resolution and smaller footprint but removes analog output capability entirely - making MLX90340EDC-AAA-400-RE uniquely optimized for plug-and-play 270° analog position feedback.
Availability
MLX90340EDC-AAA-400-RE is available at Aetrix Electronics and suitable for industrial motor feedback, valve position monitoring, and steering angle sensing requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for MLX90340EDC-AAA-400-RE 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
Melexis is a Belgian semiconductor company specializing in intelligent sensors and driver ICs for automotive, industrial, and consumer applications, with expertise in magnetic sensing and mixed-signal ASIC design.
The MLX90340 belongs to Melexis' Triaxis® absolute position sensor product line, engineered for high-reliability non-contact angular and linear displacement measurement in harsh environments where contact-based sensors fail.
FAQ
What is the factory-programmed transfer function of the MLX90340EDC-AAA-400-RE?
The MLX90340EDC-AAA-400-RE is pre-configured for a 270° mechanical input range with ratiometric analog output spanning 0.2×VDD to 0.8×VDD. This corresponds to 80% of supply voltage scaled linearly across 270°, and no field programming is required to activate this behavior. The MLX90340EDC-AAA-400-RE retains full EEPROM programmability for future recalibration if needed.
Does the MLX90340EDC-AAA-400-RE require external components for basic operation?
Yes - the MLX90340EDC-AAA-400-RE requires a 100 nF ceramic capacitor between VDIG and VSS for internal 3.3 V regulator stability, and a 100 nF bypass capacitor between VDD and VSS. No external op-amps, ADCs, or magnetic concentrators are needed, as all signal conditioning and angle computation occur on-die. The MLX90340EDC-AAA-400-RE operates standalone with only these two passive components.
Can the MLX90340EDC-AAA-400-RE be used in safety-critical systems?
Yes - the MLX90340EDC-AAA-400-RE includes built-in diagnostics for open-circuit, short-to-rail, and supply faults, with fail-safe output behavior. While it is not ASIL-certified out-of-box, its diagnostic coverage and deterministic latency (<1 ms) support integration into ASIL-B architectures when combined with appropriate system-level redundancy. The MLX90340EDC-AAA-400-RE has been deployed in EPS and industrial servo applications meeting IEC 61508 SIL2 requirements.
What is the magnetic field sensitivity range supported by the MLX90340EDC-AAA-400-RE?
The MLX90340EDC-AAA-400-RE operates within a magnetic flux density range of ±1 T (±10,000 G), with optimal performance achieved using diametrically magnetized NdFeB magnets positioned 1–5 mm from the IC surface. Its Triaxis® architecture inherently compensates for air-gap variations and lateral misalignment, allowing robust operation even with ±0.5 mm placement tolerance. The MLX90340EDC-AAA-400-RE does not require field-strength calibration for standard use cases.
Is the SOIC-8 package of the MLX90340EDC-AAA-400-RE RoHS-compliant and lead-free?
Yes - the MLX90340EDC-AAA-400-RE uses a RoHS-compliant, lead-free SOIC-8 package conforming to JEDEC MS-012 standards. It supports standard SnAgCu reflow profiles (peak 260°C, 60 sec max), and its matte-tin finish ensures compatibility with automated assembly processes. The MLX90340EDC-AAA-400-RE is rated for MSL3 per J-STD-020 and requires no special handling beyond standard humidity precautions.
MLX90340EDC-AAA-400-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- For Measuring:
- Linear, Rotary Position
- Technology:
- Hall Effect
- Rotation Angle - Electrical, Mechanical:
- 0° ~ 360°, Continuous
- Linear Range:
- -
- Output:
- Analog Voltage, PWM
- Output Signal:
- Programmable
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- ±1°
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90340EDC-AAA-400-RE FAQ
1.How can I place an order for MLX90340EDC-AAA-400-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90340EDC-AAA-400-RE 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 MLX90340EDC-AAA-400-RE reliable?
The price and inventory of MLX90340EDC-AAA-400-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90340EDC-AAA-400-RE is usually 5 days.
3.What payment methods are accepted for MLX90340EDC-AAA-400-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90340EDC-AAA-400-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90340EDC-AAA-400-RE?
MLX90340EDC-AAA-400-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90340EDC-AAA-400-RE 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 MLX90340EDC-AAA-400-RE?
For technical support, including MLX90340EDC-AAA-400-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90340EDC-AAA-400-RE requirements.
6.How does Aetrix verify that MLX90340EDC-AAA-400-RE is sourced from the original manufacturer or authorized distributors?
All MLX90340EDC-AAA-400-RE 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 MLX90340EDC-AAA-400-RE meets industry standards.
7.What is the process for return or replacement of MLX90340EDC-AAA-400-RE?
All MLX90340EDC-AAA-400-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90340EDC-AAA-400-RE, 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 MLX90340EDC-AAA-400-RE part is unused and in its original packaging.
Return procedure for MLX90340EDC-AAA-400-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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