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ATM90E32AS Poly-Phase Energy Metering Demo is used for the demo and testing of ATM90E32AS (poly-phase energy metering AFE chip of Atmel), which can sample poly-phase voltage and current, meter active/reactive/apparent/fundamental/harmonic energy and output these energy pulses accordingly, as well as measure parameters such as voltage, current and power.

The AFE Control Board - SAM4C communicates with and controls the AFE board, providing easy access to evaluate the energy metering chips.

Key Features

AFE Board
  • ATM90E32AS: poly-phase energy metering AFE chip
  • Voltage sampling: resistor divider network
  • Current sampling: Current Transformer (CT) or Rogowski Coil for current sensor
  • Energy pulses
    — Active energy pulse indicator and isolated output
    — Reactive energy pulse indicator and isolated output
    — Apparent energy pulse indicator and isolated output
    — Fundamental energy pulse indicator and isolated output
    — Harmonic energy pulse indicator and isolated output
  • One communication connector
  • Crystal: 16.384MHz
  • Power supply for demo board
    — AC 100V-240V line voltage input
    — DC 9V input
    — External 3.3V input
Control Board
  • Atmel® SAM4C microcontroller
  • Two possible power sources
    — External DC9V
    — External 3.3V from the daughter board
  • Digital I/O
    — Five mechanical buttons
    • One reset button
    • Two switch buttons for display (including forward and backward button)
    • Two wake up buttons (one is FWUP, the other is TMP0)
    — One extension header
    — One communication connector
  • Segment LCD display
  • Five types of communication interfaces
    — One USB
    — One RS485
    — One RS232
    — One Infrared Radiation (IR)
    — One Optical Infrared Radiation (OIR)
  • One EEPROM


Ordering Code Atmel Store Availability1 Unit Price2 Buy Online
ATM90E32AS-DB



1Backlog orders can be placed for items currently not available.
2Suggested retail price per unit for budgetary use only.