adg794 Analog Devices, Inc., adg794 Datasheet - Page 7

• Manufacturer Part Number: adg794
• Description: Low Voltage, 300 Mhz Quad 2 1 Mux Analog Hdtv Audio/video Switch
• Manufacturer: Analog Devices, Inc.

TERMINOLOGY
V
Most positive power supply potential.
I
Positive supply current.
GND
Ground (0 V) reference.
S
Source terminal. Can be either an input or an output.
D
Drain terminal. Can be either an input or an output.
IN
Logic control input.
V
Analog voltage on Terminal D and Terminal S.
R
Ohmic resistance between Terminal D and Terminal S.
R
Flatness is defined as the difference between the maximum and
minimum value of on resistance as measured.
ΔR
On resistance match between any two channels.
I
Source leakage current with the switch off.
I
Drain leakage current with the switch off.
I
Channel leakage current with the switch on.
V
Maximum input voltage for Logic 0.
V
Minimum input voltage for Logic 1.
I
Input current of the digital input.
DD
S
D
D
INL
ON
FLAT (ON)
DD
D
INL
INH
, I
(Off)
(Off)
ON
(V
(I
S
(On)
INH
S
)
)
Rev. A | Page 7 of 12
C
Off switch source capacitance. Measured with reference to
ground.
C
Off switch drain capacitance. Measured with reference to ground.
C
On switch capacitance. Measured with reference to ground.
C
Digital input capacitance.
t
Delay time between the 50% and the 90% points of the digital
input and switch on condition.
t
Delay time between the 50% and the 90% points of the digital
input and switch off condition.
t
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 the harmonic amplitudes plus noise of a signal to the
fundamental.
ON
OFF
BBM
S
D
D
IN
, C
(Off)
(Off)
S
(On)
ADG794