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https://github.com/eez-open/dib-mio-afe3

Hi-voltage, Hi-current isolated multirange AFE for MIO168 module
https://github.com/eez-open/dib-mio-afe3

adc current-measurement power-analysis power-meter voltage-measurement

Last synced: about 1 month ago
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Hi-voltage, Hi-current isolated multirange AFE for MIO168 module

Host: GitHub
URL: https://github.com/eez-open/dib-mio-afe3
Owner: eez-open
License: other
Created: 2021-03-31T06:56:17.000Z (almost 4 years ago)
Default Branch: master
Last Pushed: 2024-01-20T08:38:09.000Z (12 months ago)
Last Synced: 2024-05-01T11:28:27.531Z (8 months ago)
Topics: adc, current-measurement, power-analysis, power-meter, voltage-measurement
Language: HTML
Homepage:
Size: 10.6 MB
Stars: 2
Watchers: 4
Forks: 1
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE.TXT

Awesome Lists containing this project

README

        ### Ownership and License

The contributors are listed in CONTRIB.TXT.

Licenses | OSHWA UID

--|--

![osl](Images/osl.png) | [![OSHW-HR000009](Images/OSHW_UID_HR9.png)](https://certification.oshwa.org/hr000009.html)

### Overview

The [EEZ DIB](https://github.com/eez-open/modular-psu) 4-channel Hi-voltage/Hi-current AFE for [MIO168](https://github.com/eez-open/dib-mio168) module with two isolated inputs for voltage and current measurements.

### Feature list

* [ADS131E04](https://www.ti.com/product/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](Images/AFE3_prototype_r1B4.jpg)

### KiCad project (v7 or newer)

* [AFE3 r1B4](https://github.com/eez-open/dib-mio-afe3/tree/master/EDA%20files/KiCad)

All symbols, footprints and 3D models used in the project can be found in the [EEZ-DIB Library](https://github.com/eez-open/eez-kicad-libraries) plugin for KiCad.

### Bill of materials

* [Download](https://github.com/eez-open/dib-mio-afe3/tree/master/EDA%20files/KiCad/bom/ibom.html) as raw file _Interactive BOM_ (ibom.html) and open it locally in your browser.