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ADG5408/ADG5409
Data Sheet
Rev. C | Page 18 of 24
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 D and
Terminal S, respectively.
RON
RON is the ohmic resistance between Terminal D and
Terminal S.
RON
RON represents the difference between the RON of any two
channels.
RFLAT(ON)
The difference between the maximum and minimum value of
on resistance as 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 represents digital input capacitance.
tON (EN)
tON (EN) represents the delay time between the 50% and 90%
points of the digital input and switch on condition.
tOFF (EN)
tOFF (EN) represents the 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.
tD
tD represents the off time measured between the 80% point of
both switches when switching from one address state to
another.
Off Isolation
Off isolation is a measure of unwanted signal coupling through
an off channel.
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.
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.
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 a measure of the ability of a part 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. The ratio of the
amplitude of signal on the output to the amplitude of the
modulation is the ACPSRR.