VS3V257 Datasheet, PDF (5/6 Pages) Vaishali Semiconductor – High-speed 3.3V CMOS VSwitch Quad 2:1 Mux/Demux

VS3V257/VS3V2257
Table 8. Switching Characteristics Over Operating Range – 3.3V Supply Voltage
TA = -40^oC to +85^oC, VCC = 3.3V + 0.3V
CLOAD = 30pF, RLOAD = 1kΩ unless otherwise stated.
Symbol
tPLH, tPHL
Description ⁽¹⁾
Data Propagation Delay ^(2,3) through the switch
VS3V257
Min⁽³⁾ Max
0.25
VS3V2257
Min⁽³⁾ Max
1.25
tPZH, tPZL
Switch Turn-on Delay, S to YX, I0X, or I1X
0.5
5.2
0.5
6.2
tPZH, tPZL
Switch Turn-on Delay, /E to YX, I0X, or I1X
0.5
4.8
0.5
5.8
tPLZ, tPHZ
Switch Turn-off Delay ⁽³⁾, S or /E to YX, I0X, or I1X
0.5
5.0
0.5
5.0
Units
ns
ns
ns
ns
Table 9. Switching Characteristics Over Operating Range – 2.5V Supply Voltage
TA = -40^oC to +85^oC, VCC = 2.5V + 0.2V
CLOAD = 30pF, RLOAD = 1kΩ unless otherwise stated.
Symbol
tPLH, tPHL
Description ⁽¹⁾
Data Propagation Delay ^(2,3) through the switch
VS3V257
Min⁽³⁾ Max
VS3V2257
Min⁽³⁾ Max
tPZH, tPZL
Switch Turn-on Delay, S to YX, I0X, or I1X
tPZH, tPZL
Switch Turn-on Delay, /E to YX, I0X, or I1X
tPLZ, tPHZ
Switch Turn-off Delay ⁽³⁾, S or /E to YX, I0X, or I1X
Units
ns
ns
ns
ns
Notes:
1. See test circuits and waveforms.
2. 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 VS3V257 and 1.25 ns for VS3V2257. Since this time-constant is much smaller than
rise/fall times of typical driving signals, it adds very little propagation delay to the system.
3. This parameter is guaranteed, but not production tested.
Figure 7. AC Test Circuit and Switching Waveforms
AC Test Circuit 3.3V Supply Voltage
Pulse
Generator
V_IN
V_OUT
DUT
50Ω
C_L
S₁
5V
R1
1k Ω
950Ω
R_L
50Ω=Coax to
Oscilloscope
Load Switch Position
TEST
tPLH, tPHL
tPLZ, tPZL
tPHZ, tPZH
S1
Open
5V
GND
Input Conditions
Input voltage = 0 V to 3.0 V
tr = tf = 2.5ns (10% to 90%)
2000-11-28
Page 5
MDSS-0001-01
www.vaishali.com
Vaishali Semiconductor 747 Camden Avenue, Suite C Campbell CA 95008 Ph. 408.377.6060 Fax [phone]