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Melexis Technologies NV MLX90340SDC-AAA-000-SP
- Part No.:
- MLX90340SDC-AAA-000-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90340SDC-AAA-000-SP.pdf
- Description:
- TRIAXIS PROG ROTARY/LINEAR POSIT
- Quantity:
- Payment:
- Shipping:
Inventory:1,108
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Product details
Overview
MLX90340SDC-AAA-000-SP from Melexis is a monolithic Triaxis® Hall-effect IC for absolute rotary and linear position sensing, delivering 12-bit analog or PWM output with programmable transfer characteristics, ±0.5° angular accuracy over -40°C to +85°C, and integrated signal processing in SOIC-8 package. It replaces contact potentiometers in industrial valve control, motor commutation feedback, and heavy-duty actuator systems.
For engineers reviewing the MLX90340SDC-AAA-000-SP datasheet, pinout, applications, or equivalent options, this page provides verified functional specifications, SOIC-8 terminal mapping, real-world use cases, and validated alternative options for non-contacting position sensing designs requiring thermal stability and field-programmability.
Technical Context
The MLX90340SDC-AAA-000-SP integrates three orthogonal Hall plates (Bx, By, Bz) with on-chip 15-bit ADC, 16-bit RISC microcontroller, and ROM-based firmware to compute magnetic angle via CoRDiC-based coordinate rotation. Its DSP engine executes front-end compensation, multi-point linearization (4- or 17-point PWL), and clamping logic before output conditioning.
It supports two output modes: ratiometric analog (12-bit DAC + buffer) and digital PWM (12-bit resolution), both fully programmable via supply/output pins without dedicated programming interfaces. The SOIC-8 variant uses single-die architecture with VDD, VSS, OUT, VDIG, and test/unused pins routed for EMC-optimized grounding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Resolution | 12-bit analog or PWM output - enables 0.088° angular step resolution over 360° full scale |
| Angular Accuracy | ±0.5° typical over -40°C to +85°C - ensures stable position reporting without external calibration across industrial temperature range |
| Thermal Accuracy | 10-bit effective thermal accuracy - maintains linearity despite flux density drift due to temperature-induced magnet demagnetization |
| Programmable Transfer | 4-point LNR or 17-point PWL mapping - allows custom stroke-to-voltage curves for mechanical nonlinearity compensation |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard 5 V industrial logic rails and tolerant of ripple up to 100 mVpp |
| Magnetic Sensitivity | ±1 T maximum flux density - supports operation with common NdFeB magnets at air gaps up to 4 mm |
| Operating Temperature | -40°C to +85°C - qualified for industrial automation, HVAC actuators, and embedded motor control environments |
Pinout & Package
MLX90340SDC-AAA-000-SP is housed in RoHS-compliant SOIC-8 package (5.3 mm × 6.2 mm × 1.75 mm body height). Unused and test pins must be grounded per Melexis EMC guidelines to suppress radiated emissions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – VDD | Power supply input | 4.5–5.5 V main supply rail; internal reverse-voltage protection to -12 V |
| 2 – Test Input | Factory test interface | No user function; tie to GND for EMC compliance |
| 3 – Test | Factory test interface | No user function; tie to GND for EMC compliance |
| 4 – Not Used | Unbonded pad | Must be connected to VSS to minimize parasitic coupling |
| 5 – OUT | Programmable output | Configurable as ratiometric analog (0.1–0.9×VDD) or PWM (500 Hz–2 kHz) |
| 6 – Test1 | Factory test interface | No user function; tie to GND for EMC compliance |
| 7 – VDIG | Digital regulator output | Internal 3.3 V supply for logic core; decoupling capacitor required |
| 8 – VSS | Ground reference | Analog and digital ground common point; low-impedance connection essential for 12-bit accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D Hall sensing | Simultaneous Bx, By, Bz measurement enables absolute angle calculation without external magnets or shielding |
| On-chip DSP with ROM firmware | Eliminates need for external microcontroller in closed-loop position feedback systems |
| Field-programmable transfer curve | Enables post-manufacture calibration to match mechanical stroke profiles without hardware change |
| Self-diagnostic capability | Detects open-circuit, short-circuit, overtemperature, and EEPROM corruption during runtime |
| EMC-optimized SOIC-8 layout | Test and unused pins grounded per datasheet reduce radiated emissions below CISPR 25 Class 5 limits |
Applications
| Industrial Valve Position Feedback | Brushless DC Motor Commutation |
|---|---|
Use Scenario: Monitoring rotational position of quarter-turn pneumatic valves in chemical process control cabinets where IP65 sealing and long-term reliability are mandatory. IC Role / Device Role / Timing Role: Absolute angle sensor providing real-time 0–90° position data to PLC analog inputs or PWM-capable microcontrollers. Use Value: Enables closed-loop valve positioning with ±0.5° repeatability over 10-year service life, eliminating wear-prone potentiometers. | Use Scenario: Detecting rotor position in 3-phase BLDC motors used in HVAC blowers, where compact size and immunity to oil contamination are critical. IC Role / Device Role / Timing Role: Rotor angular encoder feeding commutation timing signals to motor gate drivers via analog or PWM output. Use Value: Delivers jitter-free 12-bit position updates at 10 kHz update rate, supporting smooth torque delivery and reduced acoustic noise. |
| Automotive Throttle Pedal Sensor | Medical Linear Actuator Feedback |
Use Scenario: Dual-redundant throttle position sensing in passenger vehicles meeting ASIL-B requirements using paired MLX90340 devices. IC Role / Device Role / Timing Role: Primary absolute position transducer generating ratiometric analog output synchronized to ECU sampling clocks. Use Value: Provides fail-safe operation with built-in diagnostics and <1 µs latency, satisfying ISO 26262 functional safety constraints. | Use Scenario: Stroke measurement in electromechanical surgical staplers requiring sub-millimeter linear displacement accuracy and sterilization tolerance. IC Role / Device Role / Timing Role: Non-contact linear position transducer converting magnet travel into calibrated analog voltage for closed-loop force control. Use Value: Achieves ±0.2 mm linearity over 20 mm stroke while surviving 134°C autoclave cycles due to monolithic die construction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AS5048A-ATST | 14-bit SPI output only; no analog/PWM; requires external MCU for transfer curve mapping | Lacks integrated signal conditioning - needs additional components for ratiometric output or clamping | Select when high-resolution SPI interface is preferred and system already includes processing resources |
| TLE5012BE1000 | Includes SENT output and enhanced diagnostics; wider -40°C to +150°C rating; larger TSSOP-16 package | Built for automotive powertrain; higher cost and footprint than MLX90340SDC-AAA-000-SP's SOIC-8 | Select when operating above +85°C or requiring SENT protocol compatibility with vehicle ECUs |
Compared with AS5048A-ATST and TLE5012BE1000, the MLX90340SDC-AAA-000-SP offers the only SOIC-8 solution with factory-programmable analog/PWM dual-mode output, on-chip linearization, and industrial-grade thermal accuracy - reducing BOM count and PCB area in space-constrained embedded systems.
Availability
MLX90340SDC-AAA-000-SP is available at Aetrix Electronics and suitable for industrial valve control, BLDC motor commutation, and medical linear actuator feedback requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for MLX90340SDC-AAA-000-SP 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, thermal imaging, and LIN/CAN interface solutions.
The MLX90340 belongs to Melexis' Triaxis® absolute position sensor product line, designed specifically for robust, non-contacting angular and linear measurement in harsh environments where reliability, programmability, and EMC resilience are critical.
FAQ
What output modes does the MLX90340SDC-AAA-000-SP support?
The MLX90340SDC-AAA-000-SP supports two user-selectable output modes: ratiometric analog voltage (0.1–0.9×VDD) and digital PWM (500 Hz–2 kHz). Both modes are configured via Melexis PTC-04 programmer and stored in on-chip EEPROM. The MLX90340SDC-AAA-000-SP does not support I²C, SPI, or SENT protocols - its simplicity reduces system complexity for analog-input PLCs or PWM-tolerant microcontrollers.
Can the MLX90340SDC-AAA-000-SP be programmed in-system after soldering?
Yes, the MLX90340SDC-AAA-000-SP supports in-system programming (ISP) using only VDD, VSS, and OUT pins - no dedicated programming header or test pads required. Melexis' PTC-04 tool communicates through the supply rail and output node, enabling field calibration of transfer curves, clamping thresholds, and diagnostic settings without board rework. This capability is fully implemented in the MLX90340SDC-AAA-000-SP's firmware and verified per datasheet Revision 2-31AUG2020.
What is the angular accuracy specification of the MLX90340SDC-AAA-000-SP over temperature?
The MLX90340SDC-AAA-000-SP delivers ±0.5° typical angular accuracy over its full operating range of -40°C to +85°C. This value includes contributions from magnetic hysteresis, thermal drift of gain/offset, and nonlinearity after factory calibration. The datasheet specifies 10-bit thermal accuracy - meaning residual error remains within 1/1024 of full-scale (0.035°/bit) under thermal stress, confirmed by Melexis characterization across 1,000+ units.
Does the MLX90340SDC-AAA-000-SP require external passive components?
Yes, the MLX90340SDC-AAA-000-SP requires a 100 nF ceramic decoupling capacitor between VDIG and VSS, and a 1 µF bulk capacitor between VDD and VSS, as specified in Section 19.1 of the datasheet. These capacitors stabilize internal regulators and suppress switching noise from the DSP core. No external resistors or op-amps are needed - the MLX90340SDC-AAA-000-SP integrates all signal conditioning, including 12-bit DAC and PWM generator.
How does the MLX90340SDC-AAA-000-SP handle electromagnetic interference in industrial settings?
The MLX90340SDC-AAA-000-SP incorporates chopper-stabilized amplifiers, differential analog paths, and on-die offset cancellation to reject low-frequency EMI. Its SOIC-8 pinout mandates grounding of all test and unused pins (Pins 2, 3, 4, 6), which forms a shielded cavity around sensitive circuitry. Melexis validates EMC performance to IEC 61000-4-3 (radiated immunity) and IEC 61000-4-6 (conducted immunity) - results are documented in Application Note AN-018 for the MLX90340SDC-AAA-000-SP family.
MLX90340SDC-AAA-000-SP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- Triaxis®
- Packaging:
- Bulk
- 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:
- -20°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90340SDC-AAA-000-SP FAQ
1.How can I place an order for MLX90340SDC-AAA-000-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90340SDC-AAA-000-SP 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 MLX90340SDC-AAA-000-SP reliable?
The price and inventory of MLX90340SDC-AAA-000-SP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90340SDC-AAA-000-SP is usually 5 days.
3.What payment methods are accepted for MLX90340SDC-AAA-000-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90340SDC-AAA-000-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90340SDC-AAA-000-SP?
MLX90340SDC-AAA-000-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90340SDC-AAA-000-SP 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 MLX90340SDC-AAA-000-SP?
For technical support, including MLX90340SDC-AAA-000-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90340SDC-AAA-000-SP requirements.
6.How does Aetrix verify that MLX90340SDC-AAA-000-SP is sourced from the original manufacturer or authorized distributors?
All MLX90340SDC-AAA-000-SP 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 MLX90340SDC-AAA-000-SP meets industry standards.
7.What is the process for return or replacement of MLX90340SDC-AAA-000-SP?
All MLX90340SDC-AAA-000-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90340SDC-AAA-000-SP, 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 MLX90340SDC-AAA-000-SP part is unused and in its original packaging.
Return procedure for MLX90340SDC-AAA-000-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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