adg918 Analog Devices, Inc., adg918 Datasheet - Page 6

• Manufacturer Part Number: adg918
• Description: Wideband, 43db Isolation 1ghz, Cmos 1.65 V To 2.75v, 2 1 Mux/spdt Switches
• Manufacturer: Analog Devices, Inc.

ADG918/ADG919
TERMINOLOGY
Table 5. Terminology
Parameter
V
I
GND
CTRL
V
V
I
C
t
t
t
t
Off Isolation
Insertion Loss
P
IP
Return Loss
Video
Feedthrough
DD
INL
ON
OFF
RISE
FALL
–1 dB
DD
INL
INH
IN
3
(I
INH
)
Description
Most positive power supply potential
Positive supply current
Ground (0 V) reference
Logic control input
Maximum input voltage for Logic 0
Minimum input voltage for Logic 1
Input current of the digital input
Digital input capacitance
Delay between applying the digital control input and the output switching on.
Delay between applying the digital control input and the output switching off.
Rise time. Time for the RF signal to rise from 10% to 90% of the ON level.
Fall time. Time for the RF signal to fall from 90% to 10% of the ON level.
The attenuation between input and output ports of the switch when the switch control voltage is in the OFF condition.
The attenuation between input and output ports of the switch when the switch control voltage is in the ON condition.
1 dB compression point. The RF input power level at which the switch insertion loss increases by 1 dB over its low level
value. It is a measure of how much power the ON switch can handle before the insertion loss increases by 1 dB.
Third order intermodulation intercept. This is a measure of the power in false tones that occur when closely spaced tones
are passed through a switch, whereby the nonlinearity of the switch causes these false tones to be generated.
The amount of reflected power relative to the incident power at a port. Large return loss indicates good matching. By
measuring return loss the VSWR can be calculated from conversion charts. VSWR (voltage standing wave ratio) indicates
degree of matching present at a switch RF port.
Spurious signals present at the RF ports of the switch when the control voltage is switched from high to low or low to
high without an RF signal present.
Rev. A | Page 6 of 16