ADG3243 Datasheet, PDF (7/12 Pages) Analog Devices – 2.5 V/3.3 V, 2-Bit, Individual Control Level Translator Bus Switch

TIMING MEASUREMENT INFORMATION
For the following load circuit and waveforms, the notation that
is used is V_IN and V_OUT where
V_IN = V_A and V_OUT = V_B or V_IN = V_B and V_OUT = V_A
V_CC
SW1 ^{2 ؋ VCC}
V_IN
PULSE
GENERATOR
R_L
V_OUT
DUT
R_T
C_L
R_L
GND
NOTES
PULSE GENERATOR FOR ALL PULSES: t_R Յ 2.5ns, t_F Յ 2.5ns,
FREQUENCY Յ 10MHz.
C_L INCLUDES BOARD, STRAY, AND LOAD CAPACITANCES.
R_T IS THE TERMINATION RESISTOR, SHOULD BE EQUAL TO Z_OUT
OF THE PULSE GENERATOR.
Figure 1. Load Circuit
CONTROL
INPUT BEx
t_PLH
V_OUT
V_IH
V_T
t_PLH
0V
V_H
V_T
V_L
Figure 2. Propagation Delay
ADG3243
Test Conditions
Symbol
R_L
V_⌬
C_L
V_T
V_CC = 3.3 V ؎ 0.3 V
500
300
50
1.5
V_CC = 2.5 V ؎ 0.2 V
500
150
30
0.9
Unit
Ω
mV
pF
V
Table II. Switch Position
Test
t_PLZ, t_PZL
t_PHZ, t_PZH
S1
2 × V_CC
GND
ENABLE
CONTROL INPUT BEx
V_IN = 0V
V_OUT
SW1 @ 2V_CC
V_IN = V_CC
V_OUT
SW1 @ GND
t_PZL
V_CC
V_T
t_PZH
V_T
0V
DISABLE
t_PLZ
t_PHZ
V_INH
V_T
0V
V_CC
V_L + V_⌬
V_L
V_H
V_H – V_⌬
0V
Figure 3. Enable and Disable Times
REV. 0
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