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Hi-voltage, Hi-current multirange AFE for MIO168 module

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eez-open/dib-mio-afe1

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The EEZ DIB 4-channel Hi-voltage/Hi-current AFE for MIO168 module.

Feature list

  • ADS131E04 24-bit 4-channel simultaneous sampling ADC with SPI
  • 5½ digit effective resolution
  • 2 x Hi-voltage channels featuring software selectable 3 measurement ranges (±2.4 V, ±12 V, ±240 V), and one current range (±240 mA)
  • 2 x Hi-current channels featuring software selectable 3 measurement ranes (±24 mA, ±1 A, ±10 A) and 2 voltage ranges (±2.4 V, ±12 V)
  • Latching relays for lower continous power consumption
  • On-board ±2.5 V low noise LDOs
  • Optional Voltage reference (LTC6655-2.5)
  • Active clamps on ADC inputs
  • 20 x 5 mm fueses on hi-current channels (AIN3 and AIN4)
  • Dimensions: 143 x 68.5 mm, 4-layer PCB

r1B2 prototype

prototype

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Hi-voltage, Hi-current multirange AFE for MIO168 module

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