Cascaded Non-Inverting PGA

The OPAMPs can be configured as three cascaded, non-inverting PGAs using these settings in OPAMPCTRLx:

Table 1. Cascaded Non-Inverting PGA (Exemple: R1=4R, R2=12R)
  MUXPOS MUXNEG RES1MUX POTMUX RES2VCC RES2OUT RES1EN ANAOUT
OPAMP0 0000 001 011 100 0 1 1 0
OPAMP1 0100 001 011 100 0 1 1 0
OPAMP2 0100 001 011 100 0 1 1 0
Figure 1. Cascaded Non-Inverting PGA
Parent topic: Built-in Modes