DG508A Datasheet, PDF (5/9 Pages) Maxim Integrated Products – Monolithic CMOS Analog Multiplexers

DG508A
Test Circuits and Waveforms
LOGIC
INPUT
+2.4V
50Ω
+15V
V+
EN
DG508A
S₁
+10V
S₂ THRU S₇
A₂
S₈
A₁
-10V
A₀
GND
D
V-
1MΩ
-15V
FIGURE 1A. TEST CIRCUIT
3V
LOGIC INPUT 50%
0
t_r < 20ns
t_f < 20ns
V_S1 ^S1 ^ON
0.8V_S1
SWITCH
OUTPUT
V_O
SWITCH
OUTPUT
V_O
0
0.8V_S8
V_S8
35pF
TRANSITION
TIME
S₈ ON
TRANSITION
TIME
FIGURE 1B. MEASUREMENT POINTS
FIGURE 1. SWITCHING TIME
+15V
EN 50Ω
V+
EN
S₁
-5V
DG508A
S₂ THRU S₈
A₂
A₁
A₀
GND
D
V- _1kΩ
-15V
SWITCH
OUTPUT
V_O
35pF
3V
EN
0V
0V
SWITCH
OUTPUT
V_O
V_O
50%
t_{ON (EN)}
t_r < 20ns
t_f < 20ns
50%
t_{OFF (EN)}
0.1V_O
0.9V_O
FIGURE 2A. TEST CIRCUIT
FIGURE 2. ENABLE TIMES
FIGURE 2B. MEASUREMENT POINTS
+2.4V
LOGIC
INPUT
50Ω
+15V
V+
EN
S₁ THRU S₈
+5V (V_S)
A₀
DG508A
A₁
A₂
GND
D
V-
1kΩ
-15V
SWITCH
OUTPUT
V_O
35pF
3V
LOGIC
INPUT
0V
V_S
SWITCH
OUTPUT
V_O
0V
t_r < 20ns
t_f < 20ns
50%
50%
t_OPEN
FIGURE 3A. TEST CIRCUIT
FIGURE 3B. MEASUREMENT POINTS
FIGURE 3. BREAK-BEFORE-MAKE INTERVAL
5