Datasheet
W
SCDS183A – JANUARY 2005 – REVISED APRIL 2006
www.ti.com
15
PARAMETER DESCRIPTION (continued)
SYMBOL DESCRIPTION
C
NC(OFF)
Capacitance at the NC port when the corresponding channel (NC to COM) is OFF
C
NO(OFF)
Capacitance at the NO port when the corresponding channel (NO to COM) is OFF
C
NC(ON)
Capacitance at the NC port when the corresponding channel (NC to COM) is ON
C
NO(ON)
Capacitance at the NO port when the corresponding channel (NO to COM) is ON
C
COM(OFF)
Capacitance at the COM port when the corresponding channel (COM to NC or COM to NO) is OFF
C
COM(ON)
Capacitance at the COM port when the corresponding channel (COM to NC or COM to NO) is ON
C
I
Capacitance of control input (IN, EN)
O
ISO
OFF isolation of the switch is a measurement of OFF-state switch impedance. This is measured in dB in a specific frequency,
with the corresponding channel (NC to COM or NO to COM) in the OFF state.
X
TALK
Crosstalk is a measurement of unwanted signal coupling from an ON channel to an OFF channel (NC to NO or NO to NC). This
is measured in a specific frequency and in dB.
BW Bandwidth of the switch. This is the frequency where the gain of an ON channel is −3 dB below the DC gain.
THD
Total harmonic distortion describes the signal distortion caused by the analog switch. This is defined as the ratio of root mean
square (RMS) value of the second, third, and higher harmonic to the absolute magnitude of fundamental harmonic.
I
+
Static power-supply current with the control (IN, EN) pin at V
+
or GND