ADG46+1/ADG46+3
TERMINOLOGY
tOFF
OFF represents the delay between applying the digital control
input and the output switching off.
IDD
t
I
DD represents the positive supply current.
ISS
tD
I
SS represents the negative supply current.
tD represents the off time measured between the 80% point of
both switches when switching from one address state to
another.
VD, VS
VD and VS represent the analog voltage on Terminal D and
Terminal S, respectively.
Fault Response Time
Fault response time is the delay between a fault condition (VS >
RON
RON represents the ohmic resistance between Terminal D and
VDD) on an analog input and the corresponding output below VDD
.
Terminal S.
Fault Recovery Time
ΔRON
Fault recovery time is, in recovering from a fault condition, the
delay between 50% of the input signal to 90% of the output
signal.
ΔRON represents the difference between the RON of any two
channels.
RFLAT (ON)
Charge Injection
A measure of the glitch impulse transferred from the digital
input to the analog output during switching.
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)
.
Off Isolation
IS (Off)
Off isolation is a measure of unwanted signal coupling through
an off switch.
IS (Off) is the source leakage current with the switch off.
ID (Off)
Charge Injection
Charge injection is a measure of the glitch impulse transferred
ID (Off) is the drain leakage current with the switch off.
ID (On), IS (On)
from the digital input to the analog output during switching.
ID (On) and IS (On) represent the channel leakage currents with
the switch on.
Crosstalk
Crosstalk is a measure of unwanted signal that is coupled
through from one channel to another as a result of parasitic
capacitance.
VINL
VINL is the maximum input voltage for Logic 0.
VINH
Bandwidth
V
INH is the minimum input voltage for Logic 1.
Bandwidth is the frequency at which the output is attenuated
by 3 dB.
IINL, IINH
I
INL and IINH represent the low and high input currents of the
On Response
digital inputs.
On response is the frequency response of the on switch.
CD (Off)
Insertion Loss
CD (Off) represents the off switch drain capacitance, which is
measured with reference to ground.
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.
CS (Off)
CS (Off) represents the off switch source capacitance, which is
measured with reference to ground.
AC Power Supply Rejection Ratio (ACPSRR)
CD (On), CS (On)
CD (On) and CS (On) represent on switch capacitances, which
are measured with reference to ground.
ACPSRR is the ratio of the amplitude of signal on the output to
the amplitude of the modulation. This is a measure of the ability
of the 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.
CIN
CIN is the digital input capacitance.
tON
tON represents the delay between applying the digital control
input and the output switching on.
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