Monolithic Power Systems Inc. MA600GQE-0000-Z

Overview

MA600GQE-0000-Z from Monolithic Power Systems is a high-accuracy digital magnetic angle sensor using tunnel magnetoresistance (TMR) technology to detect absolute angular position of a diametrically magnetized rotating shaft magnet. It delivers <0.6° integral non-linearity (INL), 12–15-bit configurable resolution, 800 kHz refresh rate, and supports SPI/SSI, ABZ, UVW, and PWM outputs in a QFN-16 (3mm×3mm) package for robotics and precision position control.

For engineers reviewing the MA600GQE-0000-Z datasheet, MA600GQE-0000-Z pinout, MA600GQE-0000-Z application, or MA600GQE-0000-Z equivalent, key selection criteria include INL performance (<0.1° post-calibration), on-chip 32-point correction table, configurable filter window for bandwidth-resolution trade-off, and dual 3.3V supply (AVDD/DVDD) with separate analog/digital decoupling requirements.

Technical Context

The MA600 employs Spinaxis™ phase-detection architecture-digitizing magnetic field angle directly via time-to-digital conversion without arctangent computation or feedback loops-enabling zero-latency, open-loop operation. Its front-end TMR bridges operate within a defined sensitive volume (≤400 µm wide, centered ~300 µm below package surface) optimized for in-plane (XY) field detection.

Digital conditioning includes configurable digital filtering (FW[3:0]), 32-point NVM-based lookup table for user calibration, and flexible output routing: 16-bit SPI/SSI angle data, ABZ quadrature (1–4096 PPT), UVW commutation (1–8 cycles/turn), and PWM (243 Hz or 1 kHz). All outputs derive from the same core angle measurement engine with synchronized timing.

Key Specifications

Pinout & Package

MA600GQE-0000-Z is housed in a thermally enhanced QFN-16 (3mm × 3mm, 0.5 mm pitch) package with exposed thermal pad (E-PAD, Pin 17), rated MSL 1. The package supports end-of-shaft and side-shaft magnet mounting configurations and requires strict magnetic interference mitigation (capacitors ≥5 mm from die center).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital magnetic angle sensor applications.

Compared with AS5055A and TMAG5170, MA600GQE-0000-Z uniquely integrates on-chip 32-point calibration, multi-format outputs (ABZ/UVW/PWM), and deterministic low-latency phase-detection-making it optimal for high-dynamic-position-control systems where latency, calibration simplicity, and interface consolidation are critical.

Availability

MA600GQE-0000-Z is available at Aetrix Electronics and suitable for robotics, electric power steering, industrial multi-turn encoders, and high-speed servo motor applications requiring stable component supply and long-term design continuity.

Supply support for MA600GQE-0000-Z 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

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management and sensing ICs, with design centers in the US, China, and Taiwan.

The MA600 product line targets high-precision motion control applications demanding sub-arcminute angle accuracy, robustness across extreme temperatures, and flexible digital interfacing-addressing gaps left by legacy Hall and resolver solutions.

FAQ

What is the recommended decoupling layout to preserve MA600GQE-0000-Z's <0.6° INL accuracy?

Place a 1 µF low-ESR capacitor on AVDD ≥5 mm from the MA600 die center to avoid magnetic interference from capacitor ferromagnetic materials; use a 0.1 µF capacitor on DVDD close to the pin. Avoid placing high-current traces or ground planes within 5 mm of the sensor die. Floating the E-PAD minimizes mechanical stress-induced offset drift.

How does the MA600GQE-0000-Z achieve <0.1° INL after user calibration?

It uses an on-chip 32-point non-volatile memory (NVM) lookup table that maps raw angle values to corrected outputs. Users perform a single-turn system calibration at known mechanical angles, then write correction coefficients via SPI. The sensor applies interpolation in real time, reducing residual INL from <0.6° to <0.1° without external processing.

Can MA600GQE-0000-Z support both ABZ quadrature and PWM outputs simultaneously?

Yes. The device generates all outputs-SPI/SSI angle, ABZ, UVW, PWM, and speed-from the same core angle measurement engine. ABZ and PWM operate concurrently with independent configuration (e.g., ABZ PPT = 2048, PWM frequency = 1 kHz), enabling hybrid feedback for safety-critical motor control.

What is the functional impact of the filter window (FW[3:0]) setting on real-time control loops?

FW[3:0] adjusts the digital filter cutoff frequency from 17 kHz (FW=0) to 0.075 kHz (FW=12), trading bandwidth for noise-free resolution (12.3–15 bits). At FW=5 (default), it achieves 12.5-bit resolution and 12 kHz bandwidth-optimal for 10–20 kHz FOC loops where jitter <0.02° is required at 10 krpm.

Why is MA600GQE-0000-Z marked "NOT RECOMMENDED FOR NEW DESIGNS"?

This designation reflects MPS's release of the pin-compatible, enhanced MA600A variant with improved temperature drift compensation, extended magnetic field tolerance (up to 200 mT), and updated factory calibration. MA600GQE-0000-Z remains fully supported for existing designs and offers identical functionality and specifications per Rev. 1.0 datasheet.

Does MA600GQE-0000-Z require external magnetics for side-shaft mounting?

No external magnetics are required. The sensor compensates for off-axis field distortion via configurable internal parameters (e.g., gain, offset, harmonic correction) stored in NVM. With proper magnet geometry (e.g., ring magnet) and calibration, side-shaft mounting achieves <0.3° INL-enabling compact integration where end-of-shaft access is unavailable.

How is latency managed in MA600GQE-0000-Z for real-time servo applications?

Latency is deterministic and minimized: 32 µs added delay beyond the 1.25 µs refresh period (800 kHz) at FW=0, with cancellation logic at constant speed reducing net latency to ±0.5 µs at FW=5–12. This enables sub-microsecond timing alignment between angle capture and PWM update in FOC implementations.