ISL54051_14 Datasheet, PDF (6/12 Pages) Intersil Corporation – Ultra Low ON-Resistance, Low Voltage, Single Supply, Single SPST Analog Switches

ISL54051, ISL54052
Test Circuits and Waveforms
V_INH
LOGIC
INPUT
V_INL
SWITCH
INPUT
V_NX
SWITCH
OUTPUT _0V
50%
t_OFF
V_OUT
90%
t_ON
t_r < 20ns
t_f < 20ns
90%
V+
C
SWITCH
INPUT
LOGIC
INPUT
NO OR NC
IN
GND
COM
V_OUT
R_L
C_L
50Ω 35pF
Logic input waveform is inverted for switches that have the
opposite logic sense.
FIGURE 1A. MEASUREMENT POINTS
Repeat test for all switches. C_L includes fixture and stray
capacitance.
V_OUT
=
V(NO _{or NC)}
-----------^R-----^L------------
R_L + r_(ON)
FIGURE 1B. TEST CIRCUIT
FIGURE 1. SWITCHING TIMES
V+
C
SWITCH
OUTPUT
V_OUT
ΔV_OUT
R_G
NO OR NC
COM
LOGIC ^ON
V_INH
ON
V_G
INPUT
OFF
V_INL
Q = ΔV_OUT x C_L
GND
IN
LOGIC
INPUT
FIGURE 2A. MEASUREMENT POINTS
FIGURE 2B. TEST CIRCUIT
FIGURE 2. CHARGE INJECTION
V_OUT
C_L
SIGNAL
GENERATOR
V+
C
NO or NC
IN 0V OR V+
r_ON = V₁/100mA
NO or NC
V_NX
100mA
V₁
V+
C
IN ^{VINL OR VINH}
ANALYZER
R_L
COM
GND
COM
GND
FIGURE 3. OFF ISOLATION TEST CIRCUIT
FIGURE 4. r_ON TEST CIRCUIT
6
FN6459.3
October 19, 2009