12 bit SAR driver for TIVA MCU TM4C129ENCPDT

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Presentation transcript:

12 bit SAR driver for TIVA MCU TM4C129ENCPDT October 13, 2016 Errol Leon

TIVA MCU 12 bit SAR Driver Recommended Components Op-Amp use OPA320 Op Amp and passive RC value recommendations Recommended Components Op-Amp use OPA320 R1 use 100Ω C1 use 100pF

TIVA MCU 12 bit SAR Driver Calculations for RC and GBW values

TIVA MCU 12 bit SAR Driver TINATI Schematic Model of 12bit SAR with SAR driver The SAR converter was model from the TM4C129ENCPDT datasheet pages 1985 -1990. tacq (250ns) and tconv (1us) have a piecewise function made in the simulation to model the appropriate switching time to charge and discharge Csh.

TIVA MCU 12 bit SAR Driver TINATI Simulation of 12bit SAR with SAR driver