ADG821/ADG822/ADG823

Rev. A | Page 11 of 12

TERMINOLOGY

Most positive power supply potential.

GND

Ground (0 V) reference.

Positive supply current.

S

Source terminal. May be an input or output.

D

Drain terminal. May be an input or output.

IN

Logic control input.

Ohmic resistance between Terminal D and Terminal S.

On resistance match between any two channels (that is,

Flatness is defined as the difference between the maximum and

minimum value of on resistance as measured over the specified

analog signal range.

Source leakage current with the switch off.

Drain leakage current with the switch off.

Channel leakage current with the switch on.

Analog voltage on Terminal D and Terminal S.

Maximum input voltage for Logic 0.

Minimum input voltage for Logic 1.

Input current of the digital input.

Off switch source capacitance.

Off switch drain capacitance.

On switch capacitance.

Delay between applying the digital control input and the output

switching on.

Delay between applying the digital control input and the output

switching off.

Off time or on time measured between the 90% points of both

switches, when switching from one address state to another.

Charge Injection

Charge injection is a measure of the glitch impulse transferred

from the digital input to the analog output during switching.

Crosstalk

Crosstalk is a measure of unwanted signal that is coupled

through from one channel to another as a result of parasitic

capacitance.

Off Isolation

A measure of unwanted signal coupling through an off switch.

Bandwidth

The frequency at which the output is attenuated by −3 dBs.

On Response

The frequency response of the on switch.

Insertion Loss

The loss due to the on resistance of the switch.