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Home > Products > Sensors, Transducers > Position Sensors > Angle, Linear Position Measuring

Melexis Technologies NV MLX90421GVS-ADC-008-RE

Name: MLX90421GVS-ADC-008-RE
Brand: Melexis Technologies NV
SKU: MLX90421GVS-ADC-008-RE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MLX90421GVS-ADC-008-RE

Manufacturer:: Melexis Technologies NV

Category:: Angle, Linear Position Measuring

Package:: 4-SSIP Module

Datasheet:: MLX90421GVS-ADC-008-RE.pdf

Description:: SENSOR MAG POS RATIO/PWM 4DMP

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Product details

Overview

MLX90421GVS-ADC-008-RE from Melexis is a monolithic Triaxis® Hall-based magnetic position sensor IC for absolute rotary position sensing. It delivers ratiometric analog or PWM output, supports programmable linearization up to 17 points, operates from −40 °C to +160 °C, and is AEC-Q100 Grade 0 qualified for automotive throttle and pedal position sensing.

For engineers reviewing the MLX90421GVS-ADC-008-RE datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (DMP-4), confirmed pin functions (VSS/VDD/OUT), real-world accuracy specs (±0.5° INL), functional safety status (ISO 26262 ASIL B SEooC), and validated alternatives for redundant or PCB-less deployments.

Technical Context

The MLX90421GVS-ADC-008-RE integrates a Triaxis® Hall front end sensitive to B_x, B_y, and B_z magnetic field components, enabling robust absolute angle calculation from 0° to 360° without mechanical contact. Its on-chip DSP performs multi-point linearization and real-time signal conditioning.

It supports two output modes: ratiometric analog (0.5–99% V_DD) and programmable PWM (100–2000 Hz), both configurable post-assembly. The DMP-4 package variant uses dual-mold construction with built-in decoupling capacitance and straight leads (STD4 2.54 mm pitch) per ordering code ADC-008.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating Temp	−40 °C to +160 °C - Enables under-hood automotive use without external thermal derating
Output Type	Ratiometric analog or PWM - Dual-mode flexibility for ECU analog inputs or microcontroller timer capture
Angle Accuracy	±0.5° INL (typ.) - Meets tight closed-loop control requirements in throttle and steering applications
Supply Current	7.5–10.0 mA - Low power draw compatible with 5 V rail in battery-sensitive systems
Linearization	Up to 17-point programmable transfer curve - Compensates for magnet nonlinearity and air-gap variation
Safety Certification	ISO 26262 ASIL B SEooC - Validated safety element for integration into ASIL B or lower automotive subsystems
Magnetic Range	±1 T B-field tolerance - Supports high-strength rare-earth magnets in compact mechanical layouts

Pinout & Package

DMP-4 (Dual Mold Package) is a PCB-less, surface-mount package with 4 terminals, integrated decoupling capacitance, and STD4 2.54 mm pitch lead form per ADC-008 trim specification.

Pin/Terminal	Circuit Role	Design Meaning
1	VSS	Ground reference for analog and digital blocks; must be low-impedance connection to system GND
2	VDD	5 V supply input; internal regulator generates 3.3 V analog rail (VDEC = 3.2–3.4 V)
3	OUT	Configurable ratiometric analog or PWM output; open-drain NMOS or push-pull capable
4	VSS	Second ground terminal - improves EMC performance and reduces ground bounce in noisy environments

Key Features

Feature	Design Value
Triaxis® Hall Sensing	Simultaneous measurement of B_x, B_y, B_z enables true 3D magnetic field analysis for high-accuracy angular position
Post-Assembly Programming	Field-programmable linearization and output mode allow calibration after final mechanical assembly to eliminate air-gap drift
Dual-Mold Construction	DMP-4 package embeds decoupling capacitors - eliminates need for external C_DEC, reducing BOM count and PCB area
AEC-Q100 Grade 0	Qualified for 160 °C ambient operation - supports placement near engines, transmissions, and exhaust manifolds
Broken-Wire Diagnostics	Passive detection of open-circuit VDD/VSS lines using output voltage thresholds - no extra pins or protocol overhead required

Applications

Throttle Position Sensing	Pedal Position Sensing
Use Scenario: Monitoring accelerator pedal angle in gasoline/diesel powertrains to determine engine torque demand. IC Role / Device Role / Timing Role: Absolute rotary position sensor providing real-time 0–100% throttle opening feedback with <1 ms latency. Use Value: ±0.5° INL ensures precise air-fuel ratio control; ASIL B compliance satisfies ISO 26262 functional safety requirements for powertrain ECUs.	Use Scenario: Detecting driver brake or accelerator pedal displacement in vehicles with electronic braking or drive-by-wire systems. IC Role / Device Role / Timing Role: Linear-to-rotary converted position transducer delivering analog/PWM output synchronized to vehicle CAN cycle timing. Use Value: Programmable 17-point linearization compensates for pedal linkage geometry; DMP-4's PCB-less design simplifies mounting on plastic pedal arms.
Steering Wheel Angle Sensing	Ride Height Control
Use Scenario: Measuring absolute steering wheel rotation for EPS assist torque calculation and lane-keeping assist systems. IC Role / Device Role / Timing Role: High-accuracy angular sensor interfacing directly to EPS controller via analog or PWM, with fail-safe diagnostics. Use Value: Triaxis® technology rejects stray fields from nearby motors; 160 °C rating allows placement inside column-mounted EPS modules.	Use Scenario: Monitoring suspension travel in adaptive air or hydraulic ride height systems for luxury and commercial vehicles. IC Role / Device Role / Timing Role: Absolute linear position sensor mounted on shock absorber or control arm, reporting vertical displacement continuously. Use Value: Ratiometric output eliminates supply voltage error; dual VSS pins reduce noise coupling in high-vibration chassis environments.

Throttle Position Sensing

Pedal Position Sensing

Use Scenario: Monitoring accelerator pedal angle in gasoline/diesel powertrains to determine engine torque demand.

IC Role / Device Role / Timing Role: Absolute rotary position sensor providing real-time 0–100% throttle opening feedback with <1 ms latency.

Use Value: ±0.5° INL ensures precise air-fuel ratio control; ASIL B compliance satisfies ISO 26262 functional safety requirements for powertrain ECUs.

Use Scenario: Detecting driver brake or accelerator pedal displacement in vehicles with electronic braking or drive-by-wire systems.

IC Role / Device Role / Timing Role: Linear-to-rotary converted position transducer delivering analog/PWM output synchronized to vehicle CAN cycle timing.

Use Value: Programmable 17-point linearization compensates for pedal linkage geometry; DMP-4's PCB-less design simplifies mounting on plastic pedal arms.

Steering Wheel Angle Sensing

Ride Height Control

Use Scenario: Measuring absolute steering wheel rotation for EPS assist torque calculation and lane-keeping assist systems.

IC Role / Device Role / Timing Role: High-accuracy angular sensor interfacing directly to EPS controller via analog or PWM, with fail-safe diagnostics.

Use Value: Triaxis® technology rejects stray fields from nearby motors; 160 °C rating allows placement inside column-mounted EPS modules.

Use Scenario: Monitoring suspension travel in adaptive air or hydraulic ride height systems for luxury and commercial vehicles.

IC Role / Device Role / Timing Role: Absolute linear position sensor mounted on shock absorber or control arm, reporting vertical displacement continuously.

Use Value: Ratiometric output eliminates supply voltage error; dual VSS pins reduce noise coupling in high-vibration chassis environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar magnetic position sensing applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MLX90421GVS-ADC-000-RE	Same DMP-4 package and ADC-000 trim (standard straight leads); lacks STD4 2.54 mm formed leads	Requires separate lead-forming step during SMT; less optimized for direct insertion into molded plastic housings	Select when standard lead geometry suffices and cost minimization is prioritized over mechanical integration speed
MLX90421GVE-ADC-000-RE	SMP-3 package (3-pin, single-die, PCB-less); smaller footprint but no dual ground terminal or embedded capacitance	Better suited for space-constrained linear sensors; lacks DMP-4's EMC-enhancing dual VSS and integrated decoupling	Select for ultra-compact linear position sensing where board area is critical and external decoupling is acceptable

Compared with MLX90421GVS-ADC-008-RE, the ADC-000 DMP-4 variant requires external lead forming, while the SMP-3 alternative sacrifices dual-ground noise immunity and built-in capacitance for size reduction-making MLX90421GVS-ADC-008-RE optimal for high-EMI, production-ready rotary sensing with zero secondary processing.

Availability

MLX90421GVS-ADC-008-RE is available at Aetrix Electronics and suitable for automotive throttle position sensing, pedal position monitoring, and steering angle feedback systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MLX90421GVS-ADC-008-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 magnetic sensing, infrared thermometry, and automotive ICs, with design centers in Europe and Asia and global manufacturing partnerships.

The MLX90421 product line delivers Triaxis®-based absolute position sensing for automotive powertrain, chassis, and body applications where contactless reliability, high-temperature operation, and functional safety are mandatory.

FAQ

What output modes does the MLX90421GVS-ADC-008-RE support?

The MLX90421GVS-ADC-008-RE supports both ratiometric analog output (0.5–99% V_DD) and programmable PWM output (100–2000 Hz). Output mode is configured via on-chip NVRAM and can be reprogrammed post-assembly. The DMP-4 package's OUT pin drives either mode without external circuitry, and the ratiometric nature eliminates supply voltage dependency in analog mode.

Is the MLX90421GVS-ADC-008-RE pin-compatible with earlier Triaxis® sensors?

Yes - the MLX90421GVS-ADC-008-RE in DMP-4 package offers pin-to-pin compatibility with prior-generation Triaxis® position sensors (e.g., MLX90363/MLX90364 in DMP-4), enabling drop-in replacement in existing designs. Pin assignments (VSS-VDD-OUT-VSS) and mechanical footprint match exactly, preserving layout and assembly processes.

What is the significance of the 'ADC-008' option code in MLX90421GVS-ADC-008-RE?

The 'ADC-008' option code specifies Trim & Form configuration STD4 with 2.54 mm pitch - meaning the DMP-4 package leads are pre-formed to a standardized 90° bend and spacing for direct insertion into molded plastic housings. This eliminates manual lead forming and improves mechanical repeatability in high-volume automotive assembly.

Does the MLX90421GVS-ADC-008-RE require external decoupling capacitors?

No - the MLX90421GVS-ADC-008-RE in DMP-4 package integrates decoupling capacitance internally, as confirmed in Section 15.3 of the datasheet. This eliminates the need for external VDEC capacitors, reduces PCB area, and improves high-frequency noise immunity without compromising stability or startup behavior.

How does the MLX90421GVS-ADC-008-RE achieve ASIL B compliance?

The MLX90421GVS-ADC-008-RE is certified as a Safety Element out of Context (SEooC) per ISO 26262 ASIL B. It implements diagnostic mechanisms including watchdog timers, memory ECC, supply/ground monitoring, and passive broken-wire detection - all documented in the functional safety manual. System integrators must implement required fault handling per their architecture to achieve full ASIL B system compliance.

MLX90421GVS-ADC-008-RE Specifications

Product attributes: Attribute value

Manufacturer:: Melexis Technologies NV

Package/Case:: 4-SSIP Module

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:: Through Hole

Termination Style:: PC Pin

Operating Temperature:: -40°C ~ 160°C

Grade:: Automotive

Qualification:: AEC-Q100

Supplier Device Package:: 4-DMP

MLX90421GVS-ADC-008-RE FAQ

1.How can I place an order for MLX90421GVS-ADC-008-RE through Aetrix?

Please submit a Request for Quotation (RFQ) for MLX90421GVS-ADC-008-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 MLX90421GVS-ADC-008-RE reliable?

The price and inventory of MLX90421GVS-ADC-008-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90421GVS-ADC-008-RE is usually 5 days.

3.What payment methods are accepted for MLX90421GVS-ADC-008-RE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90421GVS-ADC-008-RE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MLX90421GVS-ADC-008-RE?

MLX90421GVS-ADC-008-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MLX90421GVS-ADC-008-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 MLX90421GVS-ADC-008-RE?

For technical support, including MLX90421GVS-ADC-008-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90421GVS-ADC-008-RE requirements.

6.How does Aetrix verify that MLX90421GVS-ADC-008-RE is sourced from the original manufacturer or authorized distributors?

All MLX90421GVS-ADC-008-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 MLX90421GVS-ADC-008-RE meets industry standards.

7.What is the process for return or replacement of MLX90421GVS-ADC-008-RE?

All MLX90421GVS-ADC-008-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90421GVS-ADC-008-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 MLX90421GVS-ADC-008-RE part is unused and in its original packaging.

Return procedure for MLX90421GVS-ADC-008-RE:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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