ad7879-1acbz-rl Analog Devices, Inc., ad7879-1acbz-rl Datasheet - Page 11

• Manufacturer Part Number: ad7879-1acbz-rl
• Description: Low Voltage Controller For Touch Screens
• Manufacturer: Analog Devices, Inc.

TERMINOLOGY
Integral Nonlinearity (INL)
INL is the maximum deviation from a straight line passing
through the endpoints of the ADC transfer function. The end-
points of the transfer function are zero scale at 1 LSB below the
first code transition and full scale at 1 LSB above the last code
transition.
Differential Nonlinearity (DNL)
DNL is the difference between the measured and the ideal
1 LSB change between any two adjacent codes in the ADC.
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Offset Error
Offset error is the deviation of the first code transition
(00 … 000) to (00 … 001) from the ideal (AGND + 1 LSB).
Gain Error
Gain error is the deviation of the last code transition
(111 … 110) to (111 … 111) from the ideal (V
after the offset error has been adjusted out.
On Resistance
On resistance is a measure of the ohmic resistance between the
drain and the source of the switch drivers.
REF
− 1 LSB)
AD7879