A1330: Programmable Angle Sensor IC with Analog and PWM Output

The A1330 is a 360° angle sensor IC that provides contactless high-resolution angular position information based on magnetic Circular Vertical Hall (CVH) technology. It has a system-onchip (SoC) architecture that includes: a CVH front end, digital signal processing, and an analog output driver. It also includes on-chip EEPROM technology, capable of supporting up to 100 read/write cycles, for flexible end-of-line programming of calibration parameters. Broken ground wire detection and user-selectable output voltage clamps make the A1330 ideal for high-reliability applications requiring high-speed 0° to 360° angle measurements.

The A1330 provides adjustable internal averaging, allowing response time to be traded for resolution. This is ideal for applications operating at low rotational velocities requiring high precision. For higher RPM applications, the A1330 provides industry-leading analog response time when no averaging is enabled.

With programmable angle scaling, the A1330 supports applications requiring short angular displacements, while maintaining full dynamic range on the output. Programmable minimum and maximum angle thresholds allow diagnosis of mechanical failures.

The A1330 is available as either a single or dual die option, in an 8-pin TSSOP. The package is lead (Pb) free with 100% matte-tin leadframe plating.

• Analog output, configurable to ratiometric or non-ratiometric
• Contactless 0° to 360° angle sensor IC, for angular position, rotational speed, and direction measurement
• Single and dual die options available in same package
• Non-volatile memory (EEPROM) for use in application trimming/calibration
• Circular Vertical Hall (CVH) technology provides a single-channel sensor system with air gap independence
• 12-bit resolution possible in Low RPM mode, 10-bit resolution in High RPM mode
• Angle Refresh Rate (output rate) configurable between 25 and 3200 μs through EEPROM programming
• Customer-programmable output clamp levels provide short-circuit diagnostic capabilities
• Open-circuit detection on ground pin (broken wire)
• Undervoltage lockout for V_CCbelow specification
• Fine angle scaling for short-stroke applications
• Missing Magnet Error flag for notifying controller of low magnetic field level
• EEPROM programmable angle reference (0°) position and rotation direction (CW or CCW)
• AEC-Q100 automotive qualified