The ATT7021C user manual provides specifications, pin description, and application guidelines for the measurement chip.
This manual describes the ATT7021C measurement chip, its features, electrical characteristics, and recommended design practices. It includes pin definitions, typical performance data, and anti‑aliasing filter design.
Additional sections cover application notes, PCB layout recommendations, and test data for current and power factor measurements, helping designers integrate the chip into energy‑metering solutions. This manual is written in Chinese.
| Digital supply voltage (DDDV) range | -0.3 V to +7 V |
|---|---|
| Analog supply voltage (ADDV) range | -0.3 V to +7 V |
| Current sampling voltage (VV) range | -6 V to +6 V |
| Voltage sampling voltage (iV) range | -6 V to +6 V |
| Operating temperature range | -40 °C to +85 °C |
Both the digital and analog supply voltages can be set between –0.3 V and +7 V.
The chip operates from –40 °C up to +85 °C.