Other Parts Discussed in Thread: OPA320, REF6033
I would like to know how to interface with MEMs vibration sensor (ADXL1002z) and ADS8860 single ended 16 bits ADC, and micro-processor (ESP32). Please refer to below schematic diagram for my current interface between ADS8860 with sensors and processor. Could you help me answer following questions?
Q1. Do I need to add buffer between MEMs sensor output and filter?
Q2. Can I directly connect my filter output to AINP pin of ADS8860 and grounded the AINN pin of ADS8860?
Q3. Can I give +3.3V to "REF", "AVDD" and "DVDD" of ADS8860?
Q4. If I use 4 wire connection, do following connection correct from ADS8860 to ESP32 ?
- DIN > CS
- SCLK > CLK
- DOUT > MISO
- DIN > MOSI