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产品信息
ATM90E32AS-AU
模拟前端 – AFE 48-TQFP, IND TEMP 1.8V/3V
Enhanced Poly-Phase High-Performance Wide-Span Energy Metering IC
FEATURES ATM90E32AS-AU
Metering Features
• Metering features fully in compliance with the requirements of IEC62052-11,
IEC62053-22 and IEC62053-23, ANSI C12.1 and ANSI C12.20; applicable in polyphase
class 0.2S, 0.5S or class 1 watt-hour meter or class 2 var-hour meter.
• Accuracy of ±0.1% for active energy and ±0.2% for reactive energy over a
dynamic range of 6000:1.
• Temperature coefficient is 6 ppm/ ℃ (typ.) for on-chip reference voltage. Automatically
temperature compensated.
• Single-point calibration on each phase over the whole dynamic range for active
energy; no calibration needed for reactive/ apparent energy.
• ±1 ℃ (typ.) temperature sensor accuracy.
Other Features ATM90E32AS-AU
• 3.3V single power supply. Operating voltage range: 2.8V~3.6V. Metering accuracy
guaranteed within 3.0V~3.6V.
• Four-wire SPI interface.
• Programmable voltage sag detection and zero-crossing output.
• Crystal oscillator frequency: 16.384MHz. On-chip two capacitors and no need of
external capacitors.
• Lower power consumption. I=13mA (typ.) in Normal mode.
• TQFP48 package.
• Operating temperature: -40 ℃ ~ +85 ℃
APPLICATION ATM90E32AS-AU
• Poly-phase energy meters of class 0.2S, 0.5S and class 1 which are used in three-phase four-wire (3P4W, Y0) or three-phase three-wire (3P3W, Y or Δ) systems.
• Power monitoring instruments which need to measure voltage, current, mean power, etc.
