VS3125 Datasheet, PDF (5/6 Pages) Vaishali Semiconductor – Quad Bus Switch with Individual Active Low Enables

VS3125
Table 8. Switching Characteristics Over Operating Range
TA = -40^oC to +85^oC, VCC = 5V + 10%
CLOAD = 50pF, RLOAD = 500Ω unless otherwise stated.
Symbol Description ⁽¹⁾
tPLH, tPHL
Data Propagation Delay ^(2,3) through the switch
tPZH, tPZL Switch Turn-on Delay, /xOE to xA or xY
tPLZ, tPHZ
Switch Turn-off Delay ⁽³⁾, /xOE to xA or xY
Min⁽³⁾
-
1.5
1.5
Max
0.25
6.5
5.5
Units
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
of the order of 0.25ns for VS3125. 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 6. AC Test Circuit and Switching Waveforms
AC Test Circuit
Pulse
Generator
V_IN
V_OUT
DUT
50Ω
C_L
S₁
7V
500Ω
450Ω
R_L
50Ω=Coax to
Oscilloscope
Load Switch Position
TEST
tPLH, tPHL
tPLZ, tPZL
tPHZ, tPZH
S1
Open
Closed
Open
Input Conditions
1. Input voltage = 0 V to 3.0 V
2. t_r = t_f = 2.5ns (10% to 90%)
2001-04-12
Page 5
MDSS-0011-01
www.vaishali.com
Vaishali Semiconductor 747 Camden Avenue, Suite C Campbell CA 95008 Ph. 408.377.6060 Fax [phone]