ISL43143_05 Datasheet, PDF (9/15 Pages) Intersil Corporation – Low-Voltage, Single and Dual Supply, Quad SPST, High Performance Analog Switches

ISL43143, ISL43144, ISL43145
Test Circuits and Waveforms (Continued)
V+
C
3V
LOGIC
INPUT
0V
SWITCH
OUTPUT
V_{OUT1 0V}
90%
90%
C
V_NX
NO1
NC2
IN1
IN2
COM1
COM2
V_OUT1
V_OUT2 R_L1
300Ω
C_L1
35pF
R_L2
300Ω
C_L2
35pF
SWITCH
OUTPUT
V_{OUT2 0V}
90%
t_D
90%
t_D
LOGIC
INPUT
GND
C
V-
C_L includes fixture and stray capacitance.
Reconfigure accordingly to test SW3 and SW4.
FIGURE 3A. MEASUREMENT POINTS
FIGURE 3B. TEST CIRCUIT
FIGURE 3. BREAK-BEFORE-MAKE TIME (ISL43145 ONLY)
V+
C
V+
C
SIGNAL
GENERATOR
NO or NC
IN ^{0V or 2.4V}
R_ON = V₁/1mA
V_NX
NO or NC
1mA
V₁
IN
0.8V or 2.4V
ANALYZER
R_L
COM
GND
C
V-
Repeat test for all switches.
FIGURE 4. OFF ISOLATION TEST CIRCUIT
COM
GND
C
V-
Repeat test for all switches.
FIGURE 5. R_ON TEST CIRCUIT
V+
C
V+
SIGNAL
GENERATOR
NO1 or NC1
COM1
50Ω
NO or NC
IN2
0V or 2.4V
IN2 ^{0V or 2.4V}
ANALYZER
R_L
COM2
NO2 or NC2
GND
NO
CONNECTION
C
V-
FIGURE 6. CROSSTALK TEST CIRCUIT
IMPEDANCE
ANALYZER
IN 0V or 2.4V
COM
GND
V-
FIGURE 7. CAPACITANCE TEST CIRCUIT
9
FN6037.3
December 1, 2005