Easy Drive ADCs simplify measurement of high impedance sensors
Mark Thoren
Abstract
The LTC2484 family of delta-sigma converters that simplify measurement of high impedance sensors is described.
Keywords
Analog-to digital converter
delta-sigma ADC
LTC2484
Delta-sigma ADCs, with their high accuracy and high noise immunity, are ideal for directly measuring many types of sensors. Nevertheless, input sampling currents can overwhelm high source impedances or low-bandwidth, micropower signal conditioning circuits. The LTC2484 family of delta-sigma converters solves this problem by balancing the input currents, thus simplifying or eliminating the need for signal conditioning circuits.
A common application for a delta-sigma ADC ...
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