ADG859
Rev. A | Page 12 of 16
TERMINOLOGY
VDD
Most positive power supply potential.
IDD
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.
VD (VS)
Analog voltage on the D and S terminals.
RON
Ohmic resistance between the D and S terminals.
RFLAT (ON)
Flatness is defined as the difference between the maximum and
minimum value of on resistance as measured.
ΔRON
On resistance mismatch between any two channels.
IS (Off)
Source leakage current with the switch off.
ID (Off)
Drain leakage current with the switch off.
ID, IS (On)
Channel leakage current with the switch on.
VINL
Maximum input voltage for Logic 0.
VINH
Minimum input voltage for Logic 1.
IINL (IINH)
Input current of the digital input.
CS (Off)
Off switch source capacitance. Measured with reference to
ground.
CD (Off)
Off switch drain capacitance. Measured with reference to
ground.
CD, CS (On)
On switch capacitance. Measured with reference to ground.
CIN
Digital input capacitance.
tON
Delay time between the 50% and 90% points of the digital input
and switch on condition.
tOFF
Delay time between the 50% and 90% points of the digital input
and switch off condition.
tBBM
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 as a result 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.