DG411, DG412, DG413
Test Circuits and Waveforms (Continued)
SWITCH
OUTPUT
ΔV
V+
O
R
G
D
1
V
O
IN
X
OFF
OFF
ON
ON
V
G
C
L
V-
V
= 3V
IN
OFF
OFF
Q = ΔV x C
O
L
IN
X
GND
NOTE: IN dependent on switch configuration, input polarity
X
determined by sense of switch.
FIGURE 3A. TEST CIRCUIT
FIGURE 3B. MEASUREMENT POINTS
FIGURE 3. CHARGE INJECTION
+15V
+15V
V+
C
V+
C
SIGNAL
GENERATOR
SIGNAL
GENERATOR
50Ω
V
S
V
0dBm
D
V
S
0dBm
IN
0V, 2.4V
X
IN
0V, 2.4V
1
0V, 2.4V
NC
IN
2
V
D
V
D
ANALYZER
ANALYZER
C
C
R
R
L
L
V-
V-
GND
GND
-15V
-15V
FIGURE 4. CROSSTALK TEST CIRCUIT
FIGURE 5. OFF ISOLATION TEST CIRCUIT
+15V
V+
V
C
S
IN
0V, 2.4V
X
IMPEDANCE
ANALYZER
V
D
f = 1MHz
C
V-
GND
-15V
FIGURE 6. SOURCE/DRAIN CAPACITANCES TEST CIRCUIT
FN3282.13
June 20, 2007
7
INTERSIL [ Intersil ]
