MA730
Magnetic Angular Position SensorThe MA730 is a magnetic angular position sensor from Monolithic Power Systems. View the full MA730 datasheet below including key specifications.
Official MA730 datasheet (PDF) — the source this page was extracted from.
MA730 Key Specifications
| Parameter | Value |
|---|---|
| Abz Resolution | 1 to 1024 PPR |
| Pwm Resolution | 14 bit |
| Filter Bandwidth | 23 Hz |
| Max Rotation Speed | >50k RPM |
| Magnetic Field Range | 40 mT to 150 mT |
| Communication Interfaces | SPI, SSI, ABZ, PWM |
| Effective Angle Resolution | 14 bit |
MA730 Overview
Part: MagAlpha family — MPS (Monolithic Power Systems)
Type: Magnetic Angle Position Sensors
Description: The MPS MagAlpha family offers magnetic angle position sensors utilizing the patented SpinAxis™ Hall measurement technique for instantaneous digital angle position, supporting rotation speeds from zero to over 100kRPM with resolutions up to 14 bits.
Operating Conditions:
- Supply voltage: 3.3V
- Operating temperature: -40 to +125°C
- Magnetic field range: 15mT to 150mT (working range)
Absolute Maximum Ratings:
Key Specs:
- Sample rate: up to 1μs
- Latency: 10μs at 100kRPM
- Resolution: up to 14 bits
- Rotation speed: 0 to >100kRPM
- Power consumption: 12mA (at 3.3V)
- MA8xx family effective angle resolution: 8 bit
- MA1xx/MA3xx family effective angle resolution: 9-14 bit (MA330), 12 bit (MA102, MA302, MA310)
- MA850 PWM frequency: ~50kHz
Features:
- Instantaneous angle sensing
- High resolution up to 14 bits
- Support for end-of-shaft and side-of-shaft topologies
- Low power consumption
- Non-volatile memory for configuration parameters
- Programmable threshold magnetic field strength detection (push-button functionality)
- SPI/SSI digital angle output
- ABZ incremental interface
- PWM output
- UVW commutation signals with programmable pole pairs
- Magnetic field strength monitoring for diagnostics
- Selectable digital filter bandwidths (MA330)
Applications:
- Rotary Human-Machine-Interface (HMI) applications (e.g., rotary knobs)
- Brushless DC (BLDC) motor control
- Servo motor position control
- Process automation
- Robotics
- Automotive actuators
- Power tools
Package:
- QFN-16 (3x3mm)
MA730 Features
- SPI interface for direct digital angle reading and chip configuration
- ABZ encoder interface with up to 1024 pulses per channel per turn
- UVW commutation interface with pole pair emulation from a simple two-pole magnet
- Magnetic field strength monitoring for diagnostics
- One-time programmable or reprogrammable non-volatile memory for storage of zero position and other programmable chip configuration parameters
Figure 8: MagAlpha MA3xx Block Diagram
MA730 Applications
An example of a complete miniature servo drive implementation using the MA302 is shown in Figure 9.
Figure 9: Servo Motor Example using the MA3xx Sensor
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| MA102 | Monolithic Power Systems | QFN-16 (3x3mm) |
| MA302 | Monolithic Power Systems | QFN-16 3x3mm |
| MA310 | Monolithic Power Systems | QFN-16 3x3mm |
| MA330 | Monolithic Power Systems | QFN-16 3x3mm |
| MA800 | Monolithic Power Systems | QFN-16 3x3mm |
| MA820 | Monolithic Power Systems | QFN-16 3x3mm |
| MA850 | Monolithic Power Systems | QFN-16 3x3mm |
More datasheets
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