Product Overview
ZSPD5188 is a highly integrated photoelectric detection module that combines a photoelectric analog front-end (AFE), ADC, LED driver, timing controller, and FIFO on a single chip. It features 60dB of ambient light rejection, making it ideal for detecting weak signals in complex lighting environments. The device supports multi-pulse integration and multiple conversion modes, delivering up to 24 bits of effective data. By providing a system-level single-chip solution, ZSPD5188 is the core engine for the next generation of smart smoke alarms, air quality monitors, and vital sign sensing devices.
Core Value
Integrated Optical SoC
Integrates photodiode, AFE, ADC, LED driver, and FIFO to greatly simplify system design.
Weak Signal Specialist
Optimized for weak scattered light from smoke and particles with multi-pulse integration.
Ambient Light Rejection
Achieves 60dB of ambient light rejection, ensuring precise measurements in complex lighting.
Built-in High-Current Driver
Integrates 3 programmable LED drivers with up to 240mA of current per channel.
4 Independent Time Slots
Supports 4 independent parameter sets for easy multi-wavelength, multi-mode measurements.
Automated Timing Control
Built-in timing controller and 1024-byte FIFO reduce MCU load and system power consumption.
Key Parameters
| Parameter | Typical Value |
|---|---|
| Analog Supply Voltage | 1.7V ~ 1.9V |
| I/O Supply Voltage | 1.7V ~ 3.6V |
| Standby Current | 1.5µA (typ.) |
| Ambient Light Rejection Ratio | 60 dB (typ.) |
| LED Driver Dropout (@100mA) | 80 mV (typ.) |
| On-chip PD Sensitivity (@940nm) | 0.6 A/W (typ.) |
Technical Overview
- Up to 24 bits of effective data output ensures high measurement accuracy and resolution.
- Supports a wide, configurable sampling rate from 0.002Hz to 16kHz for static to high-speed dynamic applications.
- Built-in temperature sensor provides a basis for data compensation, ensuring stability across the full temperature range.
- The highly integrated signal chain ensures excellent consistency, simplifying calibration-free production for customers.
- The chip operates stably across a wide industrial temperature range of -40°C to 85°C.
Application Areas
Fire & Smoke Alarms
Dual-wavelength detection effectively distinguishes between water vapor and smoke, reducing false alarm rates.
Energy Storage & Power Battery Safety
Highly sensitive detection of smoke and aerosol particles generated during the early stages of thermal runaway provides an early warning system for battery safety.
Smart Building Ventilation Systems
Monitors trends in total particulate matter concentration to provide cost-effective smart start/stop control for ventilation systems.
About Zettasensing
Beijing Zettasensing Technology Co., Ltd., driven by the core philosophy of 'The Chip is the Sensor,' focuses on the innovative R&D of miniaturized, low-power, and intelligent sensors. By highly integrating MEMS and ASIC chips and incorporating edge intelligence, we deliver clean digital sensor data directly, aiming to drive continuous industry innovation. Compared to traditional analog sensors, Zettasensing's solutions offer significant advantages in size, power consumption, performance, and intelligence. Our product lines focus on four key areas: healthcare, human-computer interaction, smart security, and consumer electronics, and have been widely adopted in cutting-edge markets such as wearable medical devices, smart homes, new energy vehicles, and smart manufacturing. With years of deep expertise, Zettasensing possesses full-stack development capabilities for high-end sensors, empowering AI to efficiently connect with the physical world.
