Current version

r1B3

Status

Work in progress

PCB manufactured

Yes (r1B2)

PCB assembled

Yes (r1B2)

BOM

-

File repository

-

License

TAPR v1.0

Contributions

C4.1 (Collective Code Construction Contract)

 

Fig. 1: AFE1 r1B2 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