Melexis Technologies NV MLX90340SDC-AAA-100-SP
- Part No.:
- MLX90340SDC-AAA-100-SP
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90340SDC-AAA-100-SP.pdf
- Description:
- TRIAXIS PROG ROTARY/LINEAR POSIT
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MLX90340SDC-AAA-100-SP from Melexis is a Triaxis® Hall-effect absolute position sensor IC in SOIC-8 package, delivering 12-bit analog output with 90° pre-programmed transfer function (80%VDD/90°), ±0.5° angular accuracy over -40°C to +85°C, and integrated DSP-based magnetic angle computation from Bx, By, Bz vector components. It enables non-contact rotary sensing in automotive throttle and industrial valve position feedback.
For engineers reviewing the MLX90340SDC-AAA-100-SP datasheet, pinout, applications, or equivalent options, key selection criteria include its ratiometric analog output linearity, programmable clamping/offset/gain, thermal accuracy (10-bit effective), SOIC-8 footprint compatibility, and Triaxis® 3D magnetic field decoding capability for robust position sensing without mechanical wear.
Technical Context
The MLX90340SDC-AAA-100-SP implements a fully differential analog front-end with chopper-stabilized amplification and 2-phase Hall plate spinning for offset cancellation, followed by a 15-bit ADC feeding a 16-bit RISC microcontroller running firmware-based CoRDiC angular computation. Its DSP extracts magnetic angle α = arctan(Bj/Bi) from two orthogonal flux components.
It supports user-programmable transfer characteristics via EEPROM with Hamming ECC, including 4-point linear or 17-point piecewise-linear calibration across 65°–360° ranges, and delivers output via a 12-bit DAC buffer (ratiometric analog) or 12-bit PWM - though MLX90340SDC-AAA-100-SP is factory-configured exclusively for 90° analog mode with fixed 80%VDD span.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Ratiometric analog voltage (0.1×VDD to 0.9×VDD over 90° range) |
| Angular Resolution | 12-bit (0.022° LSB over full 360°, scaled to 90° range) |
| Thermal Accuracy | 10-bit effective (±0.5° max error over -40°C to +85°C) |
| Supply Voltage | 4.5 V to 24 V DC - supports direct battery connection with reverse polarity protection to -12 V |
| Magnetic Sensing | Triaxis® 3D Hall front-end measuring Bx, By, Bz simultaneously for intrinsic flux-density compensation |
| Operating Temp | -40°C to +85°C - qualified for industrial and consumer applications (E-grade) |
| Package | SOIC-8, RoHS-compliant, surface-mount - compatible with standard reflow profiles |
Pinout & Package
MLX90340SDC-AAA-100-SP uses an 8-pin SOIC package with exposed pad (not electrically connected). Unused and test pins (Pins 2, 3, 4, 6) must be tied to ground per EMC guidelines. Pin 7 (VDIG) provides internal 3.3 V regulator output for external circuitry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDD) | Main supply input | 4.5–24 V DC power rail; includes reverse-voltage protection (-12 V absolute max) |
| 2 (Test Input) | Factory test node | No user function; tie to GND for EMC compliance |
| 3 (Test) | Factory test node | No user function; tie to GND for EMC compliance |
| 4 (Not Used) | Unassigned | Internally unconnected; tie to GND for EMC compliance |
| 5 (OUT) | Analog output | Ratiometric voltage output (0.1–0.9×VDD) representing 0–90° position |
| 6 (Test1) | Factory test node | No user function; tie to GND for EMC compliance |
| 7 (VDIG) | 3.3 V regulator output | Stable 3.3 V supply (10 mA max) for external logic or interface circuits |
| 8 (VSS) | Ground reference | Primary return path for VDD, OUT, and VDIG; requires low-impedance PCB connection |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D magnetic sensing | Simultaneous Bx, By, Bz measurement enables intrinsic compensation of magnet strength drift and temperature-induced flux variation |
| Pre-programmed 90° analog transfer | Factory-calibrated 0–90° linear output (80%VDD span) eliminates need for end-user programming or calibration hardware |
| Integrated 3.3 V regulator (VDIG) | On-chip LDO supplies clean 3.3 V at up to 10 mA - reduces BOM count and improves noise immunity for downstream circuitry |
| Chopper-stabilized analog front-end | Eliminates 1/f noise and offsets via 2-phase Hall spinning, enabling stable DC-coupled position tracking without drift |
| Hamming ECC EEPROM storage | Ensures reliable retention of calibration and configuration data over >100k write cycles and 15-year data retention at 85°C |
Applications
| Automotive Throttle Position Sensing | Industrial Valve Actuation Feedback |
|---|---|
Use Scenario: Monitoring rotational position of engine throttle plates in gasoline and hybrid powertrains under high-vibration, wide-temperature conditions. IC Role / Device Role / Timing Role: Absolute angular position transducer converting magnet rotation into ratiometric analog voltage proportional to 0–90° opening angle. Use Value: Eliminates potentiometer wear and contact bounce; achieves ±0.5° accuracy across -40°C to +85°C without recalibration. | Use Scenario: Closed-loop control of pneumatic/hydraulic valves in chemical processing plants where sealed, non-contact feedback is required. IC Role / Device Role / Timing Role: Primary position sensor reporting real-time 0–90° stem rotation to PLC analog input modules via 4–20 mA loop drivers. Use Value: Immune to dust, moisture, and EMI due to solid-state design and integrated EMC-optimized pin grounding scheme. |
| Consumer Appliance Motor Control | Medical Infusion Pump Angle Monitoring |
Use Scenario: Detecting precise rotor angle in brushless DC motors used in high-end washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Commutation feedback sensor providing 12-bit resolution analog signal synchronized to motor phase timing. Use Value: Enables smooth torque delivery and acoustic noise reduction via accurate field-oriented control without encoder cost or complexity. | Use Scenario: Verifying exact dial setting on manually adjusted syringe pumps used in critical care infusion therapy. IC Role / Device Role / Timing Role: Safety-relevant position verifier ensuring operator-set dose angle matches delivered volume within ±0.5° tolerance. Use Value: Supports IEC 62304 Class C software requirements via self-diagnostic features and EEPROM integrity checking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90363KDC-AAA-000-SP | Same SOIC-8 package but with 360° pre-programmed analog output and extended -40°C to +125°C rating | Requires redesign of signal conditioning for full-turn range; suited for steering angle or motor commutation | Select when full 360° range and higher temp grade are needed; not drop-in for 90° systems |
| AS5055A-DSOT | 12-bit SPI-output magnetic encoder in SOT-23-8; no integrated regulator or analog output | Requires external ADC, voltage reference, and microcontroller interface; lacks ratiometric analog simplicity | Select when digital interface and minimal footprint are prioritized over analog plug-and-play integration |
Compared with MLX90340SDC-AAA-100-SP, MLX90363KDC-AAA-000-SP offers wider angular range and higher temperature tolerance but requires system-level adaptation, while AS5055A-DSOT trades analog convenience for digital flexibility and smaller size - neither is pin-compatible nor functionally identical without hardware or firmware changes.
Availability
MLX90340SDC-AAA-100-SP is available at Aetrix Electronics and suitable for automotive throttle position sensing, industrial valve actuation feedback, and consumer appliance motor control requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MLX90340SDC-AAA-100-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 magnetic sensing, infrared thermometry, and automotive ICs, with ISO/TS 16949 certification and global manufacturing partnerships.
The MLX90340 product line delivers Triaxis®-based absolute position sensing for demanding industrial and automotive environments, designed specifically to replace contact-based potentiometers with robust, maintenance-free alternatives.
FAQ
What is the output voltage range of the MLX90340SDC-AAA-100-SP?
The MLX90340SDC-AAA-100-SP provides a ratiometric analog output ranging from 0.1×VDD to 0.9×VDD, corresponding to 0°–90° mechanical rotation. At VDD = 5 V, this yields 0.5 V to 4.5 V; at VDD = 12 V, it yields 1.2 V to 10.8 V. The transfer function is factory-programmed and fixed - no user reprogramming is required or supported for this variant.
Does the MLX90340SDC-AAA-100-SP require external programming to operate?
No, the MLX90340SDC-AAA-100-SP is fully functional out-of-box. It ships pre-programmed with a 90° analog transfer characteristic (80%VDD span), calibrated offset/gain/clamping, and enabled self-diagnostics. No PTC-04 programmer, DLL tools, or EEPROM writes are needed - only VDD, VSS, and load on OUT are required for operation.
Can the MLX90340SDC-AAA-100-SP be used in a 360° rotary application?
No - the MLX90340SDC-AAA-100-SP is specifically configured for 0–90° absolute position sensing. For 360° applications, Melexis offers the MLX90340SDC-AAA-200-SP (360° pre-programmed) or MLX90363 series. Using MLX90340SDC-AAA-100-SP beyond 90° results in saturated output and loss of linearity.
What is the purpose of the VDIG pin on the MLX90340SDC-AAA-100-SP?
The VDIG pin on the MLX90340SDC-AAA-100-SP outputs a regulated 3.3 V supply derived from VDD, capable of sourcing up to 10 mA. It is intended to power external circuitry such as op-amps, ADC references, or microcontroller I/O - reducing external regulator count and improving noise isolation in analog signal chains.
How does the MLX90340SDC-AAA-100-SP achieve thermal accuracy better than conventional Hall sensors?
The MLX90340SDC-AAA-100-SP achieves 10-bit thermal accuracy by computing magnetic angle α = arctan(Bj/Bi) from two orthogonal flux components, making the result inherently independent of absolute flux magnitude. This Triaxis® architecture compensates for temperature-induced B-field drift and magnet demagnetization - unlike single-axis Hall sensors whose output scales directly with flux density.
MLX90340SDC-AAA-100-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-100-SP FAQ
1.How can I place an order for MLX90340SDC-AAA-100-SP through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90340SDC-AAA-100-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-100-SP reliable?
The price and inventory of MLX90340SDC-AAA-100-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-100-SP is usually 5 days.
3.What payment methods are accepted for MLX90340SDC-AAA-100-SP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90340SDC-AAA-100-SP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90340SDC-AAA-100-SP?
MLX90340SDC-AAA-100-SP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90340SDC-AAA-100-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-100-SP?
For technical support, including MLX90340SDC-AAA-100-SP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90340SDC-AAA-100-SP requirements.
6.How does Aetrix verify that MLX90340SDC-AAA-100-SP is sourced from the original manufacturer or authorized distributors?
All MLX90340SDC-AAA-100-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-100-SP meets industry standards.
7.What is the process for return or replacement of MLX90340SDC-AAA-100-SP?
All MLX90340SDC-AAA-100-SP units undergo pre-shipment inspection (PSI). If there is an issue with MLX90340SDC-AAA-100-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-100-SP part is unused and in its original packaging.
Return procedure for MLX90340SDC-AAA-100-SP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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