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| CD74HC4016 Datasheet, PDF (6/7 Pages) Texas Instruments – High-Speed CMOS Logic Quad Bilateral Switch | |||
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CD74HC4016
Analog Test Circuits
VIS VCC
VCC
0.1µF
VIS
SWITCH
ON
R
R
VOS1
C
R
SWITCH
ON
VCC/2
R
VCC/2
fIS = 1MHz SINEWAVE
R = 50â¦
C = 10pF
VCC/2
FIGURE 5. CROSSTALK BETWEEN TWO SWITCHES TEST CIRCUIT
VOS2
C
dB
METER
VCC
0.1µF
SWITCH
VIS
ON
50â¦
VCC/2
VOS
10pF
dB
METER
FIGURE 6. FREQUENCY RESPONSE TEST CIRCUIT
VCC
SINE
WAVE
10µF
VIS
SWITCH
ON
VI = VIH
10kâ¦
fIS = 1kHz TO 10kHz
VCC/2
VIS
50pF
VOS
DISTORTION
METER
FIGURE 7. TOTAL HARMONIC DISTORTION TEST CIRCUIT
600â¦
VCC/2
VCC
SWITCH
ALTERNATING
ON AND OFF
tr, tf ⤠6ns
fCONT = 1MHz
50% DUTY
CYCLE
E
VOS
VP-P
600â¦
VOS
50pF
VCC/2
SCOPE
0.1µF
VIS
VCC
VC = VIL
SWITCH
ON
R
R
VCC/2
VCC/2
fIS ⥠1MHz SINEWAVE
R = 50â¦
C = 10pF
VOS
C
dB
METER
FIGURE 8. CONTROL-TO-SWITCH FEEDTHROUGH NOISE
TEST CIRCUIT
Test Circuits and Waveforms
FIGURE 9. SWITCH OFF SIGNAL FEEDTHROUGH
tr = 6ns
INPUT
tTHL
90%
50%
10%
INVERTING
OUTPUT
tPHL
tf = 6ns
VCC (HC)
3V (HCT)
GND
tTLH
90%
50%
10%
tPLH
FIGURE 10. HC/HCT TRANSITION TIMES AND PROPAGATION
DELAY TIMES, COMBINATION LOGIC
6ns
OUTPUT
DISABLE
50%
OUTPUT LOW
TO OFF
tPLZ
tPHZ
OUTPUT HIGH
TO OFF
OUTPUTS
ENABLED
90%
10%
90%
6ns
10%
tPZL
tPZH
OUTPUTS
DISABLED
FIGURE 11. SWITCH TURN-ON AND TURN OFF
PROPAGATION DELAY TIMES
VCC (HC)
3V (HCT)
GND
50%
50%
OUTPUTS
ENABLED
6
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