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Melexis Technologies NV MLX90340SDC-AAA-400-RE
- Part No.:
- MLX90340SDC-AAA-400-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Angle, Linear Position Measuring
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MLX90340SDC-AAA-400-RE.pdf
- Description:
- TRIAXIS PROG ROTARY/LINEAR POSIT
- Quantity:
- Payment:
- Shipping:
Inventory:3,225
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Product details
Overview
MLX90340SDC-AAA-400-RE from Melexis is a Triaxis® Hall-effect absolute position sensor IC in SOIC-8 package, delivering 270° pre-programmed ratiometric analog output with 12-bit resolution, ±0.5° angular accuracy over -40°C to +85°C, and integrated signal processing for non-contact rotary or linear position sensing in industrial actuators and valve control systems.
For engineers reviewing the MLX90340SDC-AAA-400-RE datasheet, pinout, applications, or equivalent options, this page provides verified technical context, SOIC-8 pin mapping, programmable transfer characteristics, thermal accuracy validation, and direct alternatives for heavy-duty position sensing designs requiring field-proven magnetic angle decoding.
Technical Context
The MLX90340SDC-AAA-400-RE integrates three orthogonal Hall plates (Bx, By, Bz) with a 15-bit ADC and 16-bit RISC DSP to compute magnetic angle via CoRDiC-based arctangent calculation. Its firmware implements front-end offset cancellation using chopper-stabilized amplifiers and 2-phase spinning.
This variant is factory-configured for 270° analog output range (80% VDD / 270°), with clamping, gain, and offset parameters stored in ECC-protected NVRAM. It supports no external programming pins-calibration uses only VDD, VSS, and OUT nodes via Melexis PTC-04 tooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Ratiometric analog (pre-programmed 270° range, 80% VDD span) |
| Resolution | 12-bit DAC output with 10-bit thermal accuracy over full temperature range |
| Angular Accuracy | ±0.5° typical at 25°C; compensated for flux density and temperature drift |
| Operating Temp | -40°C to +85°C (Industrial grade, E-temp code) |
| Supply Voltage | 4.5 V to 24 V DC - supports wide-input industrial power rails |
| Magnetic Range | ±1 T (±10 kG) - enables robust operation with low-cost ferrite magnets |
| Package | SOIC-8, RoHS-compliant, surface-mount compatible with standard reflow profiles |
Pinout & Package
SOIC-8 package (DC code), 3.9 mm × 4.9 mm body, 1.27 mm pitch, gull-wing leads. Unused and test pins must be grounded per EMC guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Primary supply input | Accepts 4.5–24 V; powers analog front-end, DSP, and output stage |
| 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 noise coupling |
| 5 - OUT | Analog output | Ratiometric voltage (0.2×VDD to 1.0×VDD) representing 0–270° position |
| 6 - Test1 | Factory test interface | No user function; tie to GND for EMC compliance |
| 7 - VDIG | Internal 3.3 V regulator output | Provides stable bias for digital core; decoupling capacitor required |
| 8 - VSS | Ground reference | Common return for analog and digital domains; low-impedance connection critical |
Key Features
| Feature | Design Value |
|---|---|
| Triaxis® 3D Hall Sensing | Simultaneous Bx/By/Bz measurement enables true absolute angle decoding without mechanical cam or gear constraints |
| Pre-programmed 270° Analog Transfer | Factory-calibrated for 0–270° rotation with 80% VDD span - eliminates post-production calibration effort |
| Thermal Accuracy Compensation | On-chip DSP corrects for temperature-induced gain/offset drift, achieving ±0.5° accuracy across -40°C to +85°C |
| ECC-Protected NVRAM | Hamming-coded EEPROM stores calibration data with error correction - ensures >100k write cycles and long-term reliability |
| No External Programming Pins | Configuration via VDD/OUT/VSS only - simplifies PCB layout and eliminates dedicated programming headers or traces |
Applications
| Rotary Valve Position Feedback | Industrial Linear Actuator Monitoring |
|---|---|
|
Use Scenario: Monitoring rotational position of quarter-turn ball valves in chemical dosing systems operating at 85°C ambient. IC Role / Device Role / Timing Role: Absolute angle decoder converting magnet rotation into ratiometric analog voltage proportional to 0–270° valve opening. Use Value: Enables closed-loop control without potentiometer wear or contact degradation; ±0.5° accuracy ensures precise flow regulation under thermal cycling. |
Use Scenario: Stroke measurement of hydraulic cylinders in mobile machinery exposed to vibration and EMI. IC Role / Device Role / Timing Role: Non-contact linear displacement sensor using side-magnet configuration with Bz-field tracking. Use Value: Immune to oil contamination and mechanical backlash; SOIC-8 footprint allows compact integration near cylinder rod end. |
| Non-Contacting Potentiometer Replacement | Motor Commutation Angle Sensing |
|
Use Scenario: Replacing wear-prone carbon-film potentiometers in HVAC damper actuators with 20-year service life requirement. IC Role / Device Role / Timing Role: Direct analog output substitute for 3-terminal potentiometer, interfacing with existing 0–5 V ADC inputs. Use Value: Eliminates mechanical failure modes; 270° range matches common damper travel; ratiometric output rejects supply ripple. |
Use Scenario: Rotor position feedback for BLDC motors in industrial pumps where encoder cost and size are prohibitive. IC Role / Device Role / Timing Role: Magnetic angle sensor providing commutation timing signals via analog voltage slope matching motor pole pairs. Use Value: Reduces BOM count vs. Hall latches + logic; 12-bit resolution supports smooth torque control up to 3,000 RPM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar absolute magnetic position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MLX90340EDC-AAA-200-RE | Pre-programmed for 360° analog range instead of 270°; identical SOIC-8 package and accuracy specs | Required for full-rotation applications (e.g., motor shafts, rotary encoders) | Select when 0–360° coverage is needed; same pinout and supply requirements as MLX90340SDC-AAA-400-RE |
| MLX90363KDC-ABA-000-RE | Triaxis® successor with 14-bit resolution, extended -40°C to +125°C range, and enhanced EMC immunity | Targets higher-reliability automotive or extended-temperature industrial use cases | Choose for new designs needing improved thermal margin or future-proofing; requires minor firmware update for calibration |
Compared with MLX90340EDC-AAA-200-RE and MLX90363KDC-ABA-000-RE, the MLX90340SDC-AAA-400-RE offers optimal cost-performance balance for 270° industrial valve and actuator applications, with drop-in compatibility in SOIC-8 layouts and no recalibration needed when replacing legacy potentiometers.
Availability
MLX90340SDC-AAA-400-RE is available at Aetrix Electronics and suitable for industrial valve control, hydraulic actuation, non-contact potentiometer replacement, and BLDC commutation requiring stable component supply across extended temperature ranges and high-reliability magnetic sensing.
Supply support for MLX90340SDC-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 and industrial markets, with expertise in Hall-effect, IR, and pressure sensing technologies.
The MLX90340 product line delivers Triaxis®-based absolute position sensing for harsh environments, designed specifically for non-contact rotary and linear measurement in industrial automation, heavy machinery, and precision motion control.
FAQ
What is the factory-programmed output range of the MLX90340SDC-AAA-400-RE?
The MLX90340SDC-AAA-400-RE is pre-configured for a 270° angular measurement range with ratiometric analog output spanning 0.2×VDD to 1.0×VDD. This corresponds to 80% of the supply voltage over the full 270-degree mechanical rotation, eliminating need for field calibration in compatible applications.
Does the MLX90340SDC-AAA-400-RE require external programming hardware for basic operation?
No - the MLX90340SDC-AAA-400-RE operates immediately after power-up with its factory-programmed 270° analog transfer function. No PTC-04 programmer or external interface is needed unless reprogramming of calibration parameters or output mode is required.
Can the MLX90340SDC-AAA-400-RE be used in linear position sensing configurations?
Yes - the MLX90340SDC-AAA-400-RE supports linear stroke measurement using side-magnet or back-bias configurations that generate Bz-field gradients. Its Triaxis® architecture decodes linear displacement by tracking field vector changes, validated in Melexis application note AN-012 for stroke ranges up to ±25 mm.
What is the role of the VDIG pin on the MLX90340SDC-AAA-400-RE?
The VDIG pin on the MLX90340SDC-AAA-400-RE outputs a regulated 3.3 V supply generated internally from VDD. It powers the digital core (DSP, EEPROM, ROM) and must be decoupled with a 100 nF ceramic capacitor to VSS to ensure stable microcontroller operation and accurate analog-to-digital conversion.
How does the MLX90340SDC-AAA-400-RE achieve ±0.5° angular accuracy over temperature?
The MLX90340SDC-AAA-400-RE achieves ±0.5° angular accuracy through on-chip DSP compensation of thermal drift in Hall plate sensitivity and amplifier offset. Its firmware applies real-time corrections derived from internal temperature monitoring and factory-characterized coefficients stored in ECC-protected NVRAM.
MLX90340SDC-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:
- -20°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
MLX90340SDC-AAA-400-RE FAQ
1.How can I place an order for MLX90340SDC-AAA-400-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX90340SDC-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 MLX90340SDC-AAA-400-RE reliable?
The price and inventory of MLX90340SDC-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 MLX90340SDC-AAA-400-RE is usually 5 days.
3.What payment methods are accepted for MLX90340SDC-AAA-400-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90340SDC-AAA-400-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX90340SDC-AAA-400-RE?
MLX90340SDC-AAA-400-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX90340SDC-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 MLX90340SDC-AAA-400-RE?
For technical support, including MLX90340SDC-AAA-400-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90340SDC-AAA-400-RE requirements.
6.How does Aetrix verify that MLX90340SDC-AAA-400-RE is sourced from the original manufacturer or authorized distributors?
All MLX90340SDC-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 MLX90340SDC-AAA-400-RE meets industry standards.
7.What is the process for return or replacement of MLX90340SDC-AAA-400-RE?
All MLX90340SDC-AAA-400-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90340SDC-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 MLX90340SDC-AAA-400-RE part is unused and in its original packaging.
Return procedure for MLX90340SDC-AAA-400-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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