EEZ DIB MIO168 AFE1

Current version

r1B3

Status

Work in progress

PCB manufactured

r1B3

PCB assembled

r1B3

BOM

File repository

License

TAPR v1.0

Contributions

C4.1 (Collective Code Construction Contract)

 

AFE1 r1B3.jpg

Fig. 1: AFE1 r1B3 prototype

Feature list

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

  • 24-bit 4-channel simultaneous sampling ADC with SPI
  • 2 x Hi-voltage channels featuring 3 measurement ranges (±2.4 V, ±12 V, ±240 V), and one current range (±240 mA)
  • 2 x Hi-current channels, featuring 3 measurement ranges (±24 mA, ±1 A, ±10 A) and 2 voltage ranges (±2.4 V, ±15 V)
  • Latching relays for lower continuous power consumption
  • On-board ±2.5 V low noise LDOs
  • Dimensions: 141.5 x 68.5 mm, 4-layer PCB

Fig. 2: AIN#1 three range hi-voltage / two range lo-current input, latching relays driver

 

Fig. 3: AIN#2 three range hi-voltage / two range lo-current input

 

Fig. 4: AIN#3 three range hi-current / two range lo-voltage input

 

Fig. 5: AIN#4 three range hi-current / two range lo-voltage input

 

 

Fig. 6: 4-channel 24-bit simultaneous ADC, Low noise LDOs