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ATT7053A

ATT7053A

With zero-line metering of single-phase multi-function metering chip
General Description
ATT7053AU is a high-accuracy, low-power, single-phase metering chip with SPI interface, the operating voltage is 3.0V – 3.6V. It has 3-channel 19-bit sigma - delta ADC, the sampling rate is up to 28KHz and is flexible configuration; power measurement accuracy is better than 0.1% in3000:1 dynamic range, it can measure the line voltage and current rms, the user can get two channels active power and reactive power simultaneously, it supports off anti-theft, and power consumption is 2.4mA when the default register run at full speed; input channel supports independent and flexible gain configuration, so external Manganin or current transformer can be as a current sampling devices. Fully meet all the needs of the State Grid and China Southern Power Grid Single-phase energy meter.
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