Op amp offset6/2/2023 While this arrangement works in theory, there can be some practical problems. So if you make small adjustments in the DC voltage at node “A”, then you are indeed adjusting the offset of the system. Node “A” is the node with respect to which the input signal is measured. You can do this using a DAC such as the LTC2630-12, but where do you connect it into the circuit? While both of these parts already have quite good DC accuracy in terms of offset voltage, sometimes you want to further tweak the offset of the circuit. For example, the LTC6362 is a low power differential op amp that is a good choice to drive 16- and 18-bit SAR ADCs such as the LTC2379-18 family. Offset Adjust for a Differential Op Amp Driving an ADCįully differential op amps are useful components to interface a single-ended signal to a differential-input ADC.
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