Datasheet

Channel OFF
OFF-State Leakage Current
V
I
= V
IH
or V
IL
V
+
GND
NC
V
I
COM V
COM
V
NC
IN
+
+
+
V
+
I
COM
r
on
+
V
COM
* V
NC
I
COM
W
GND
Channel ON
NC
V
I
COM
V
COM
V
I
= V
IH
or V
IL
V
NC
IN
+
+
TS5A23167
www.ti.com SCDS195A –MAY 2005–REVISED SEPTEMBER 2012
PARAMETER DESCRIPTION
SYMBOL DESCRIPTION
V
COM
Voltage at COM
V
NC
Voltage at NC
r
on
Resistance between COM and NC ports when the channel is ON
r
peak
Peak on-state resistance over a specified voltage range
r
onΔ
Difference of r
on
between channels in a specific device
r
on(flat)
Difference between the maximum and minimum value of r
on
in a channel over the specified range of conditions
Leakage current measured at the NC port, with the corresponding channel (NC to COM) in the OFF state under worst-case
I
NC(OFF)
input and output conditions
I
NC(PWROFF)
Leakage current measured at the NC port during the power-down condition, V
+
= 0
Leakage current measured at the COM port, with the corresponding channel (COM to NC) in the OFF state under worst-case
I
COM(OFF)
input and output conditions
I
COM(PWROFF)
Leakage current measured at the COM port during the power-down condition, V
+
= 0
Leakage current measured at the NC port, with the corresponding channel (NC to COM) in the ON state and the output
I
NC(ON)
(COM) open
Leakage current measured at the COM port, with the corresponding channel (COM to NC) in the ON state and the output
I
COM(ON)
(NC) open
V
IH
Minimum input voltage for logic high for the control input (IN)
V
IL
Maximum input voltage for logic low for the control input (IN)
V
I
Voltage at the control input (IN)
I
IH
, I
IL
Leakage current measured at the control input (IN)
Turn-on time for the switch. This parameter is measured under the specified range of conditions and by the propagation delay
t
ON
between the digital control (IN) signal and analog output (COM or NC) signal when the switch is turning ON.
Turn-off time for the switch. This parameter is measured under the specified range of conditions and by the propagation delay
t
OFF
between the digital control (IN) signal and analog output (COM or NC) signal when the switch is turning OFF.
Charge injection is a measurement of unwanted signal coupling from the control (IN) input to the analog (NC or COM) output.
Q
C
This is measured in coulomb (C) and measured by the total charge induced due to switching of the control input. Charge
injection, Q
C
= C
L
× ΔV
COM
, C
L
is the load capacitance, and ΔV
COM
is the change in analog output voltage.
C
NC(OFF)
Capacitance at the NC port when the corresponding channel (NC to COM) is OFF
C
COM(OFF)
Capacitance at the COM port when the corresponding channel (COM to NC) is OFF
C
NC(ON)
Capacitance at the NC port when the corresponding channel (NC to COM) is ON
C
COM(ON)
Capacitance at the COM port when the corresponding channel (COM to NC) is ON
C
I
Capacitance of control input (IN)
OFF isolation of the switch is a measurement of OFF-state switch impedance. This is measured in dB in a specific frequency,
O
ISO
with the corresponding channel (NC to COM) in the OFF state.
Crosstalk is a measurement of unwanted signal coupling from an ON channel to an adjacent ON channel (NC1 to NC2). This
X
TALK
is measured in a specific frequency and in dB.
BW Bandwidth of the switch. This is the frequency in which the gain of an ON channel is –3 dB below the DC gain.
Total harmonic distortion describes the signal distortion caused by the analog switch. This is defined as the ratio of root mean
THD
square (RMS) value of the second, third, and higher harmonic to the absolute magnitude of the fundamental harmonic.
I
+
Static power-supply current with the control (IN) pin at V
+
or GND
PARAMETER MEASUREMENT INFORMATION
Figure 16. ON-State Resistance (r
on
)
Figure 17. OFF-State Leakage Current (I
COM(OFF)
, I
NC(OFF)
, I
COM(PWROFF)
, I
NC(PWR(FF)
)
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