DESCRIPTION
The SAMES SA9122E Single Phase unidirectional active Power/Energy metering integrated circuit includes a seperate on-chip 64 segment Liquid Crystal Display driver. The power/energy metering circuit generates a pulse rate output, proportional to the power consumption, while the LCD driver is programmable via a serial interface.

FEATURES
■ Performs unidirectional power and energy measurement
■ On-chip 64 segment LCD driver
■ Meets the IEC 521/1036 Specification requirements for Class 1 AC Watt hour meters
■ Total power consumption rating below 25 mW
■ Adaptable to different types of current sensors
■ Operates over a wide temperature range
■ Different pulse rate options available for power information
■ LCD data input via a serial interface