Product Overview
The ezPyroTM range of thin film digital pyroelectric IR sensors are designed for gas detection and concentration measurement. These sensors combine high-quality sensing elements with configurable electronic integration in a compact SMD package. Featuring high sensitivity and fast response times, they ensure rapid and accurate detection of target gases. The integrated digital, current-mode read-out allows for lower IR-emitter duty cycles, significantly reducing system-level power consumption while maintaining a high signal-to-noise ratio (SNR). Programmable gain and filtering provide flexibility in system design, and industry-standard I2C communication ensures plug-and-play connectivity to microcontrollers for easy tuning and calibration. ezPyro sensors offer high stability over time, ensuring a long and maintenance-free operational lifespan. Various optical filter options are available, and sensors can be daisy-chained for synchronized sampling.
Product Attributes
- Brand: ezPyroTM
- Sensor Type: Pyroelectric Infrared Sensor
- Package Type: SMD
- Communication Interface: I2C (FM+ compatible)
- Read-out: Current mode
- ADC: 15bit ADC
- Filter Aperture: d = 1.65 mm
- Element Size: 0.64 x 0.64 mm
- Package Dimensions: 5.65 x 3.7 x 1.55 mm
- Field of View: ~90
- Time Constant: ~10ms (10-20 Hz peak)
- Optical Filter Options: Available
- Daisy-chaining: Supported
Technical Specifications
| Specification | Value | Notes |
|---|---|---|
| Supply Voltage | 1.75 to 3.6 V | |
| Supply Current (typ.) | 1 to 23 A | |
| D* (typ.) | 2.5 x 108 cmHz/W | Measured without filter @ 500K, 10 Hz, room temperature |
| NEP (typ.) | 2.7 x 10-10 W/Hz | |
| Operating Temperature | -40 to +85 C | |
| Storage Temperature | -40 to +110 C | |
| Configurable Features | Gain / digital filtering / sampling rate / power modes | |
| Part Number | AFBR-S6EPY12211R | Marking: Y12211, Filter: 3.91 m, Filter BW: 90 m, Gas: Reference, Package: 800 pcs on 7-in. tape and reel |
| Part Number | AFBR-S6EPY12231R | Marking: Y12231, Filter: 4.26 m, Filter BW: 180 m, Gas: CO2, Package: 800 pcs on 7-in. tape and reel |
| Power Mode | Normal Power Mode | Max ADC Sampling Rate: 600 sps, Typical Current Consumption: 22 A (1.8 V, room temperature) |
| Power Mode | Low Power Mode | Max ADC Sampling Rate: 166 sps, Typical Current Consumption: 3.5 A (1.8 V, room temperature) |
| Operational State | Normal Operation Mode | Sensor signal readout over I2C, 22 A |
| Operational State | Sleep Mode | Hardware interrupt on infrared trigger, 21 A (Normal), 3.5 A (Low) |
| Operational State | Power Down Mode | Sensor is disabled, 1.1 A |
| High Pass Filter Analog (Hz) | Off, 1, 2, 4, 8 | (Base sample rate dependent) |
| Fixed Analog Low Pass Filter (Hz) | 600, 250, 180, 90, 45, 22.5 | (Base sample rate dependent) |
| Fixed Digital Low Pass Filter (Hz) | 100, 42, 30, 15, 7.5, 3.75 | (Base sample rate dependent) |
| Digital Low Pass Filter (Hz) | 1000, 250, 180, 90, 45, 22.5 | (Base sample rate dependent) |
2504101957_Broadcom-AFBR-S6EPY12231R_C17414772.pdf
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