AD7755AANZ

The AD7755AANZ is a kind of high accuracy electrical energy measurement IC.

Features of the AD7755AANZ are:(1)high accuracy, supports 50 Hz/60 Hz IEC 687/1036 less than 0.1% error over a dynamic range of 500 to 1; (2)the AD7755AANZ supplies average real power on the frequency outputs F1 and F2; (3)the high frequency output CF Is intended for calibration and supplies instantaneous real power; (4)the logic output REVP can be used to indicate a potential miswiring or negative power; (5)direct drive for electromechanical counters and two phase stepper motors (F1 and F2); (6)a PGA in the current channel allows the use of small values of shunt and burden resistance; (7)proprietary ADCs and DSP provide high accuracy over large variations in environmental conditions and time.

The absolute maximum ratings of the AD7755AANZ can be summarized as:(1): AVDD to AGND is  0.3 V to +7 V; (2): DVDD to DGND is 0.3 V to +7 V; (3): DVDD to AVDD is  0.3 V to +0.3 V; (4): analog input voltage to AGND V1P, V1N, V2P and V2N is 6 V to +6 V; (5): reference input voltage to AGND is 0.3 V to AVDD + 0.3 V; (6): digital input voltage to DGND is  0.3 V to DVDD + 0.3 V; (7): digital output voltage to DGND is  0.3 V to DVDD + 0.3 V; (8): operating temperature range industrial (A, B Versions)  is  40°C to +85°C;(9): storage temperature range is 65°C to +150°C; (10): junction temperature is 150°C.