Overview
The SVHM-738-5-E-W digital pyroelectric sensor integrates the sensitive element of a traditional pyroelectric sensor with a signal processing chip. The sensitive element and IC chip are encapsulated inside the sensor’s shield. The sensitive element detects infrared signals generated by human movement and transmits them in a differential input manner to a high-precision digital signal processing chip. After processing, the sensor outputs a 16-bit digital signal for easy use.
Key Features
- High sensitivity and superior signal-to-noise ratio
- Single-wire serial data
- 16-bit digital signal output
- Voltage and micro power consumption
- Dual-element compensation structure for effective resistance to environmental interference
- High-cutoff depth interference filter with strong resistance to white light
- Excellent anti-interference performance
- Suitable for SMD mounting
Applications
- Security products
- Human-sensing toys
- Human-sensing lighting, switches, and home appliances
- Smart home and smart appliances
- IoT terminals
- Industrial automation control
Technical Specifications
| Parameter | Symbol | Testing condition | Min | Typical | Max | Min |
| Power voltage | VDD | – | 2.5 | 3.3 | 5.5 | V |
| Operating current | IDD | No load, VDD=3.3V | — | 8 | — | uA |
| ADC resolution | 16 | Bits | ||||
| Low pass filter cutoff frequency | FL | 7 | Hz | |||
| High pass filter cutoff frequency | FH | 0.44 | Hz |
