Analog Devices / Maxim Integrated MAX22707 Precision Zero Crossing Detector
Analog Devices MAX22707 Precision Zero Crossing Detector provides a reliable and repeatable zero-crossing detection signal based on an AC line input. The MAX22707 uses switched-capacitor filters to ensure minimal zero-crossing delay while tracking change in the input frequency. The device provides higher precision and a more inherently stable output than discrete solutions. The Analog Devices MAX22707 features a low-power, precision analog filter based on the switched-capacitor technology designed for precision filtering of AC input noise.
Features
- Precision zero-crossing detection
- Integrated zero-crossing detection with ±1% accuracy
- High-frequency noise filter
- 4th order low-pass filter (LPF)
- 4th order band-pass filter (BPF)
- Configurability for ease of use
- User-selectable filter configuration (LPF or BPF)
- Selectable input frequency
- Power-saving standby mode
- Programmable DC averaging timer
- Saves PCB space and bill of materials (BOM) cost
- No external precision filter capacitor required
- 10-Pin µMAX package 3mm x 3mm
Applications
- Industrial lighting dimming
- AC phase detection
- Flexible zero-crossing detection
Simplified Application Diagram
Evaluation Kit
Analog Devices / Maxim Integrated MAX22707 Evaluation Kit
Used to evaluate the MAX22707 low power, precision zero-crossing detector.
Published: 2022-02-10
| Updated: 2023-04-17