Cirrus Logic CS5509 - Manual (Page 21)

CS5509
DS125F3 21
SPECIFICATION DEFINITIONS
Linearity Error
The deviation of a code from a straight line which connects the two endpoints of the A/D
Converter transfer function. One endpoint is located 1/2 LSB below the first code transition and
the other endpoint is located 1/2 LSB beyond the code transition to all ones. Units in percent of
full-scale.
Differential Nonlinearity
The deviation of a code's width from the ideal width. Units in LSBs.
Full Scale Error
The deviation of the last code transition from the ideal [{(VREF+) - (VREF-)} - LSB]. Units
are in LSBs.
Unipolar Offset
The deviation of the first code transition from the ideal ( LSB above the voltage on the AIN-
pin.) when in unipolar mode (BP/UP low). Units are in LSBs.
Bipolar Offset
The deviation of the mid-scale transition (011...111 to 100...000) from the ideal ( LSB below
the voltage on the AIN- pin.) when in bipolar mode (BP/UP high). Units are in LSBs