ADG439F datasheet(12/16 Pages) AD

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ADG438F/ADG439F

Rev. E | Page 12 of 16

TERMINOLOGY

VDD

Most positive power supply potential.

VSS

Most negative power supply potential.

GND

Ground (0 V) reference.

RON

Ohmic resistance between D and S.

ΔRON

ΔRON represents the difference between the RON of any two

channels as a percentage of the maximum RON of those two

channels.

RFLAT (ON)

Flatness is defined as the difference between the maximum and

minimum value of the on resistance measured over the specified

analog signal range and is represented by RFLAT (ON).

Flatness is calculated by

((RMAX − RMIN) / RMAX × 100)

RON Drift

Change in RON when temperature changes by one degree Celsius.

IS (Off)

Source leakage current when the switch is off.

ID (Off)

Drain leakage current when the switch is off.

ID, IS (On)

Channel leakage current when the switch is on.

VD (VS)

Analog voltage on Terminal D and Terminal S.

IS (Fault—Power Supplies On)

Source leakage current when exposed to an overvoltage

condition.

ID (Fault—Power Supplies On)

Drain leakage current when exposed to an overvoltage

condition.

IS (Fault—Power Supplies Off)

Source leakage current with power supplies off.

CS (Off)

Channel input capacitance for off condition.

CD (Off)

Channel output capacitance for off condition.

CD, CS (On)

On switch capacitance.

CIN

Digital input capacitance.

tON (EN)

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

and switch on condition.

tOFF (EN)

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

and switch off condition.

tTRANSITION

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

inputs and the switch on condition when switching from one

address state to another.

tOPEN

Off time measured between 80% points of both switches when

switching from one address state to another.

VINL

Maximum input voltage for Logic 0.

VINH

Minimum input voltage for Logic 1.

IINL (IINH)

Input current of the digital input.

Off Isolation

A measure of unwanted signal coupling through an off channel.

Charge Injection

A measure of the glitch impulse transferred from the digital

input to the analog output during switching.

IDD

Positive supply current.

ISS

Negative supply current.

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