ADG779

Rev. A | Page 7 of 12

TERMINOLOGY

Most positive power supply potential.

Positive supply current.

GND

Ground (0 V) reference.

S

Source terminal. Can be an input or an output.

D

Drain terminal. Can be an input or an output.

IN

Logic control input.

Analog voltage on drain (D) and source (S) terminals.

Ohmic resistance between the D and S.

Flatness is defined as the difference between the maximum and

minimum value of on resistance as measured.

On-resistance mismatch between any two channels.

Source leakage current with the switch off.

Drain leakage current with the switch off.

Channel leakage current with the switch on.

Maximum input voltage for Logic 0.

Minimum input voltage for Logic 1.

Input current of the digital input.

Off switch source capacitance. Measured with reference to

ground.

Off switch drain capacitance. Measured with reference to

ground.

On switch capacitance. Measured with reference to ground.

Digital input capacitance.

Delay time between the 50% and 90% points of the digital input

and switch on condition.

Delay time between the 50% and 90% points of the digital input

and switch off condition.

On or off time measured between the 80% points of both

switches when switching from one to another.

Charge Injection

A measure of the glitch impulse transferred from the digital

input to the analog output during on/off switching.

Off Isolation

A measure of unwanted signal coupling through an off switch.

Crosstalk

A measure of unwanted signal that is coupled through from one

channel to another because of parasitic capacitance.

−3 dB Bandwidth

The frequency at which the output is attenuated by 3 dB.

On Response

The frequency response of the on switch.

Insertion Loss

The loss due to the on resistance of the switch.

THD + N

The ratio of harmonic amplitudes plus noise of a signal to the

fundamental.