ES51993
11,000 Counts ADC
4.3 Zero and RZero Calibration
The Zero and RZero calibration are designed for removing the error rise from the
propagation delay of internal component. In Zero or RZero calibration mode, ES51993
outputs a calibration value. The normal measurement value must minus the calibration
value to cancel the error and obtain a more accurate value. The following block
diagram performs the difference between basic structures of normal mode, Zero
calibration and RZero Calibration. We suggest users to do zero-calibration in most
applications.
IN +
V IN +
(a ) N o rm a l m o d e
V IN -
D u a l S lo p e
ADC
IN -
IN +
V IN +
(b ) Z ero m o d e
V IN -
D u a l S lo p e
ADC
IN -
IN +
V IN +
(c ) R Z ero m o d e
V IN -
D u a l S lo p e
ADC
IN -
9
06/09/20
CYRUSTEK [ Cyrustek corporation ]
