
Using fully differential op amps as attenuators, Part 1: Differential bipolar input signals
Conditioning high-voltage input signals to drive ADCs from
high-voltage sources can be challenging. How can a highervoltage
signal like ±10 V be attenuated and level-shifted to
match the significantly lower differential and commonmode-
voltage input required by the ADC? In this article,
Part 1 of a three-part series, we consider a balanced, differential
bipolar input signal and propose an architecture
utilizing a fully differential operational amplifier (FDA) to
accomplish the task.
Par Jim Karki
Langue :
Anglais
Société :
Texas Instruments
Pour télécharger le PDF, veuillez vous connecter ou créer un compte
Conditioning high-voltage input signals to drive ADCs from
high-voltage sources can be challenging. How can a highervoltage
signal like ±10 V be attenuated and level-shifted to
match the significantly lower differential and commonmode-
voltage input required by the ADC? In this article,
Part 1 of a three-part series, we consider a balanced, differential
bipolar input signal and propose an architecture
utilizing a fully differential operational amplifier (FDA) to
accomplish the task.
Par Jim Karki
Langue :
Anglais
Société :
Texas Instruments
Pour télécharger le PDF, veuillez vous connecter ou créer un compte