Ownership and License

The contributors are listed in CONTRIB.TXT.

Licenses	OSHWA UID

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

KiCad project (v7 or newer)

• AFE3 r1B4

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.