Product Overview
The ZSBM800X series is a dual-sensor platform designed specifically for wearable devices to meet the demand for multi-modal, high-precision health and vital sign monitoring. A single chip integrates an independent ECG engine and features a four-channel parallel PPG processing architecture. Continuing Zettasensing's low-power DNA, the PPG monitoring power consumption is as low as 10µA. It provides a one-stop solution from advanced hardware to intelligent algorithms, helping customers overcome tough design challenges and create competitive next-generation products.
Core Value
Low PPG Power
10µA system-level power consumption provides extreme battery life for all-day monitoring.
ECG Performance
Features a high 112dB SNR and 50GΩ high input impedance.
Parallel PPG Architecture
4 differential / 8 single-ended inputs support multi-site sensing and complex algorithms.
Functional Integration
Built-in Right Leg Drive (RLD), lead-off detection, and a large 1024-byte FIFO.
Ambient Light Rejection
60dB hardware-level automatic cancellation, ready for outdoor light challenges.
Platform-Based Solution
Offers flexible choices from a standalone AFE to a fully integrated SiP module.
Key Parameters
| ECG SNR | 112 dB |
| ECG Input Impedance | 50 GΩ |
| ECG Differential Input Range | ±500 mV |
| PPG System Power | 10 µA (@25Hz) |
| PPG Equivalent Input Noise | 4.5 nA rms (equivalent) |
| PPG Sampling Rate | Up to 16k Hz |
| ADC Resolution | Up to 24 Bits |
Technical Overview
- Compliant with YY 9706.247-2021 / IEC 60601-2-47:2012 standards
- Integrated AC and DC lead-off detection
- Provides 4 independently programmable measurement slots for multi-parameter synchronous measurement
- Supports 2-electrode and 3-electrode ECG configurations with a built-in RLD feedback loop
- Offers both SPI and I²C communication interfaces for easy system integration
- Built-in 12-channel programmable constant-current LED driver, supporting up to 240mA
- Wide operating temperature range from -40°C to 85°C ensures product reliability
Application Areas
High-End Smartwatches
Integrates PPG and ECG to enable atrial fibrillation (AFib) screening and professional sports tracking.
Smart Rings
Achieves high-precision PPG heart rate and blood oxygen monitoring within the tiny form factor of a ring.
PTT Cuffless Blood Pressure Measurement
Simultaneously acquires ECG and PPG signals to provide high-quality raw data for blood pressure trend analysis.
Professional Sports Monitoring
Utilizes 4 parallel PPG channels for more accurate motion artifact resistance and muscle oxygen monitoring.
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.
