DESCRIPTION
The SAMES SA9110A Three Phase bidirectional energy metering integrated circuit has an integrated Liquid Crystal Display (LCD) driver for a 7 digit (7 segment) display as well as 4 multiple tariff registers. The SA9110A performs the active power calculation.

FEATURES
■ Performs bidirectional energy metering and directly drives a LCD with 7 digits plus announciators
■ 4 externally selectable on-chip tariff registers
■ An additional total energy register
■ Meets the IEC 521/1036 Specification requirements for Class 1 AC Watt hour meters
■ Optical interface for electronic reading according to IEC1107 Mode D
■ Pulse output for calibration
■ Total power consumption rating below 40mW
■ Adaptable to different types of current sensors
■ Operates over a wide temperature range
■ Precision voltage reference on-chip
■ Protected against ESD