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Data Sheet

ADGS1412

Rev. 0 | Page 17 of 25

TERMINOLOGY

IDD

IDD represents the positive supply current.

ISS

ISS represents the negative supply current.

VD, VS

VD and VS represent the analog voltage on Terminal Dx and

Terminal Sx, respectively.

RON

RON represents the ohmic resistance between Terminal Dx and

Terminal Sx.

∆RON

∆RON represents the difference between the RON of any two

channels.

RFLAT(ON)

Flatness that is defined as the difference between the maximum

and minimum value of on resistance measured over the specified

analog signal range is represented by RFLAT(ON).

IS (Off)

IS (Off) is the source leakage current with the switch off.

ID (Off)

ID (Off) is the drain leakage current with the switch off.

ID (On), IS (On)

ID (On) and IS (On) represent the channel leakage currents with

the switch on.

VINL

VINL is the maximum input voltage for Logic 0.

VINH

VINH is the minimum input voltage for Logic 1.

IINL, IINH

IINL and IINH represent the low and high input currents of the

digital inputs.

CD (Off)

CD (Off) represents the off switch drain capacitance, which is

measured with reference to ground.

CS (Off)

CS (Off) represents the off switch source capacitance, which is

measured with reference to ground.

CD (On), CS (On)

CD (On) and CS (On) represent on switch capacitances, which

are measured with reference to ground.

CIN

CIN is the digital input capacitance.

tON

tON represents the delay between applying the digital control

input and the output switching on.

tOFF

tOFF represents the delay between applying the digital control

input and the output switching off.

Off Isolation

Off isolation is a measure of unwanted signal coupling through

an off switch.

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.

−3 dB Bandwidth

Bandwidth is the frequency at which the output is attenuated

by 3 dB.

On Response

On response is the frequency response of the on switch.

Insertion Loss

Insertion loss is the loss due to the on resistance of the switch.

Total Harmonic Distortion + Noise (THD + N)

The ratio of the harmonic amplitude plus noise of the signal to

the fundamental is represented by THD + N.

AC Power Supply Rejection Ratio (ACPSRR)

ACPSRR is the ratio of the amplitude of signal on the output to the

amplitude of the modulation. ACPSRR is a measure of the ability of

the device to avoid coupling noise and spurious signals that appear

on the supply voltage pin to the output of the switch. The dc voltage

on the device is modulated by a sine wave of 0.62 V p-p.

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