Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer
ADDITIONAL AC CHARACTERISTICS FOR 74HC/HCT
Recommended conditions and typical values
GND = 0 V; T
amb
= 25
°C
SYMBOL PARAMETER
sine-wave distortion
f = 1 kHz
sine-wave distortion
f = 10 kHz
switch “OFF” signal
feed-through
typ.
0.04
0.02
0.12
0.06
−50
−50
UNIT
%
%
%
%
dB
dB
V
CC
(V)
2.25
4.5
2.25
4.5
2.25
4.5
V
EE
(V)
−2.25
−4.5
−2.25
−4.5
−2.25
−4.5
V
is(p−p)
(V)
4.0
8.0
4.0
8.0
note 1
74HC/HCT4051
CONDITIONS
R
L
= 10 kΩ; C
L
= 50 pF
(see Fig.14)
R
L
= 10 kΩ; C
L
= 50 pF
(see Fig.14)
R
L
= 600
Ω;
C
L
= 50 pF
(see Figs 12 and 15)
R
L
= 600
Ω;
C
L
= 50 pF;
f = 1 MHz (E or S
n
,
square-wave between
V
CC
and GND,
t
r
= t
f
= 6 ns)
(see Fig.16)
V
(p−p)
crosstalk voltage between
control and any switch
(peak-to-peak value)
110
220
mV
mV
4.5
4.5
0
−4.5
f
max
C
S
minimum frequency
response (−3dB)
170
180
MHz
MHz
pF
pF
2.25
4.5
−2.25
−4.5
note 2
R
L
= 50
Ω;
C
L
= 10 pF
(see Fig.13 and 14)
maximum switch capacitance
independent (Y)
5
common
(Z)
25
Notes to AC characteristics
1. Adjust input voltage V
is
to 0 dBm level (0 dBm = 1 mW into 600
Ω).
2. Adjust input voltage V
is
to 0 dBm level at V
os
for 1 MHz (0 dBm = 1 mW into 50
Ω).
General note
V
is
is the input voltage at a Y
n
or Z terminal, whichever is assigned as an input.
V
os
is the output voltage at a Y
n
or Z terminal, whichever is assigned as an output.
Test conditions:
V
CC
= 4.5 V; GND = 0 V; V
EE
=
−4.5
V;
R
L
= 50
Ω;
R
source
= 1 kΩ
Fig.12 Typical switch “OFF” signal feed-through as a function of frequency.
December 1990
12
PHILIPS [ NXP SEMICONDUCTORS ]
