VS3V253/VS3V2253
Advance Information
Table 8. Switching Characteristics Over Operating Range – 3.3V Supply Voltage
T
A
= -40 C to +85 C, V
CC
= 3.3V + 0.3V
C
LOAD
= 30pF, R
LOAD
= 500Ω unless otherwise stated.
o
o
Symbol
t
PLH
, t
PHL
t
PZH
, t
PZL
t
PZH
, t
PZL
t
PLZ
, t
PHZ
Description
Data Propagation Delay
(2,3)
(1)
VS3V253
Min
Max
(3)
VS3V2253
(3)
Min
Max
1.25
0.5
0.5
0.5
6.2
5.8
5.0
Units
ns
ns
ns
ns
through the switch
0.5
0.5
0.5
0.25
5.2
4.8
5.0
Switch Turn-on Delay, S0 or S1 to Y
X
, I
XX
Switch Turn-on Delay, /E
A
or /E
B
to Y
X
, I
XX
Switch Turn-off Delay
(3)
,
S
X
or /E
X
to Y
X
, I
XX
Table 9. Switching Characteristics Over Operating Range – 2.5V Supply Voltage
T
A
= -40 C to +85 C, V
CC
= 2.5V + 0.2V
C
LOAD
= 30pF, R
LOAD
= 500Ω unless otherwise stated.
o
o
Symbol
t
PLH
, t
PHL
t
PZH
, t
PZL
t
PZH
, t
PZL
t
PLZ
, t
PHZ
Description
(1)
VS3V253
Min
Max
(3)
VS3V2253
(3)
Min
Max
Units
ns
ns
ns
ns
Data Propagation Delay
(2,3)
through the switch
Switch Turn-on Delay, S to Y
X
, I0
X
, or I
X
Switch Turn-on Delay, /E to Y
X
, I0
X
, or I
X
Switch Turn-off Delay
(3)
,
S or /E to Y
X
, I0
X
, or I
X
Notes:
1.
2.
See test circuits and waveforms.
This parameter is the calculated theoretical RC time constant of ON-state resistance of the switch and the
specified load capacitance when driven by an ideal voltage source (zero source impedance). This time-constant is
on the order of 0.25 ns for VS3V253 and 1.25 ns for VS3V2253. Since this time-constant is much smaller than
rise/fall times of typical driving signals, it adds very little propagation delay to the system.
This parameter is guaranteed, but not production tested.
3.
Figure 7. AC Test Circuit and Switching Waveforms
AC Test Circuit
3.3V Supply Voltage
S
1
5V
500
Ω
R
L
450
Ω
50
Ω
C
L
50
Ω=
Coax to
Oscilloscope
Load Switch Position
TEST
t
PLH
, t
PHL
t
PLZ
, t
PZL
t
PHZ
, t
PZH
Open
Closed
Open
S1
Pulse
Generator
V
IN
DUT
V
OUT
Input Conditions
Input voltage = 0 V to 3.0 V
t
r
= t
f
= 2.5ns (10% to 90%)
Switching Waveforms
2000-11-28
Vaishali Semiconductor
1300 White Oaks Road
Page 5
Campbell
CA 95008
Ph. 408.377.6060
MDSS-0003-01
Fax 408.377.6063
VAISH [ VAISHALI SEMICONDUCTOR ]
