In a traditional scale system, the sensor and chip measurement module consumes more than 90% of the power. Therefore, using high-speed pulse power supply and reducing measurement time are key to reducing the power consumption of the scale system. CHIPSEA’s CSU8RP1001 SOC has achieved a breakthrough in high-speed and high-precision measurement—the ENOB can continue to reach 16 bits when the ADC output rate is 1.9 kHz, PGA = 136, and Vref = 2.6 V. The high speed and high precision of this core ADC unit ensure it is possible to use high-speed pulse measurement, thereby greatly reducing the system’s average power consumption.

The MCU core and LCD driver module in a conventional scale consume a small amount of current. However, the current consumption is quite large for the microamp-level power supply in a solar scale. The CSU8RP1001 chip in the LCD driver module uses an innovative approach to obtain LCD bias voltage, enabling the module to consume less than 1 uA of current while powering a large LCD.