Cirrus-logic CS5509 Manuel d'utilisateur télécharger pdf (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

1 2 ... 16 17 18 19 20 21 22 23 24

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Cirrus-logic CS5509 Manuel d'utilisateur Page 21