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README.md

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Ownership and License

The contributors are listed in CONTRIB.TXT.

Licenses OSHWA UID
osl OSHW-HR000009

Overview

The EEZ DIB 4-channel Hi-voltage/Hi-current AFE for MIO168 module with two isolated inputs for voltage and current measurements.

Feature list

  • ADS131E04 24-bit 4-channel simultaneous sampling ADC with SPI
  • AIN#1: Hi-voltage isolated (floated) input featuring 2 measurement ranges (±50 V, ±450 V)
  • AIN#2: Hi-current isolated (floated) input featuring 2 measurement ranges (±1 A, ±10 A)
  • AIN#3: Hi-voltage input featuring 3 measurement ranges (±2.4 V, ±48 V, ±240 V)
  • AIN#4: Hi-current input featuring 3 measurement ranges (±24 mA, ±1.2 A, ±10 A), share common GND with AIN#3
  • Latching relays for lower continuous power consumption
  • Fused current inputs
  • On-board ±2.5 V low noise LDOs
  • Optional external voltage reference
  • Dimensions: 132 x 68.5 mm, 4-layer PCB

r1B4 prototype 3D model

prototype

KiCad project (v7 or newer)

All symbols, footprints and 3D models used in the project can be found in the EEZ-DIB Library plugin for KiCad.

Bill of materials

  • Download as raw file Interactive BOM (ibom.html) and open it locally in your browser.