SY7T609EB+R1

• High resolution Delta-Sigma ADC with two analog (sensor) inputs
• Precision internal voltage and timing references minimize external components
• Energy Measurement Processor with nonvolatile storage of calibration and configuration data
• Extended Temperature Range -40°C to 105°C
• Flexible SPI, UART, I²C, or PWM interface options with configurable DIO for alarm signaling, address pins, or user control
• Small 14-pin TSSOP package 

The SY7T609E is an energy measurement processor (EMP) designed specifically for BOM optimized applications, requiring measurements in single-phase systems (2 or 3 wires) and two-phase (i.e. Japan). The device features SPI, I²C and UART interfaces. The UART allows for low baud rates to further lower isolation costs.

The analog front end (AFE) provides three differential analog inputs for interfacing to current sensors and voltage sensors respectively. Scaled voltages from the sensors are fed to a high-resolution delta-sigma converter. A low Power Energy Measurement Processor (EMP) with embedded firmware performs all the necessary computation, compensation, and data formatting for interfacing to any host controller. With integrated flash memory for storing nonvolatile data such as calibration coefficients and input configuration settings, the SY7T609E provides an autonomous solution that simplifies system integration.