CD4066B Types
COS/MOS Quad Bilateral
Switch
For Transmission or Multiplexing of Analog or
Digital Signals
Features:
High-Voltage Types (20-Volt Rating)
The RCA-CD40668 IS a quad bilateral SWitch
Intended for the transmission or multiplex-
Ing of analog or digl tal Signals. It is pin-for·
pin compatible with RCA-CD40168, but
exhibits a much lower on-state resistance. In
addition, the on-state resistance IS relatively
constant over the full input-signal range.
The CD40668 consists of four independent
bilateral SWitches. A Single control Signal is
required per SWitch. 80th the p and the n
deVice in a given switch are biased on or
off simultaneously
by the control signal.
As shown in Fig_ 1, the well of the n-channel
deVice on each SWitch IS either tied to the
input when the switch is on or to VSS when
the switch IS off. This configuration elimi-
nates the variation of the SWitch-tranSistor
threshold voltage with input signal, and thus
keeps the on-state resistance low over the full
operating-signal range.
The advantages over Single-channel switches
include peak input-signal voltage swings equal
to the full supply Voltage, and more constant
on-state Impedance over the input-signal
range_ For sample-and-hold applications,
however, the CD40168 IS recommended.
The C04066B is available In 14-lead ceramic
dual-in-line packages (0 and F suffixes).
14-lead plastic dual-in-line packages (E suf-
fix). 14-lead ceramic flat pac;kages (K suffix).
and In chip form (H suffix).
•
15-V digital or ±7.5-V peak-to-peak switching
• 125n typical on-state resistance for 15-V operation
• Switch on-state resistance matched to within 5 n over
15-V signal-input range
• On-state resistance flat over full peak-to-peak signal
range
• High on/off output-voltage ratio: 80 dB typo
@
fis
=
10 kHz. R L
=
1 kn
• High degree of linearity: <0.5% distortion
FUNCTIONAL DIAGRAM
typo
@
fis
=
1 kHz, Vis
=
5 VP-P. VOO -
VSS
~
10 V, RL
=
10 kn
• Extremely lOw off-state swtch leakage
resulting in very low
offset
current and high
effective off-state resistance: 10 pA typo
@
Applications:
VOO - VSS
=
10 V, TA
=
25
0
C
• Analog signal switching/multiplexing
Signal gating
Modulator
• Extremely high control input impedan.;e
Squelch control
Demodulator
(control circuit isolated from signal cir-
Chopper
Commutating switch
cuit): 10 12 n typo
• Digital signal switching/Multiplexing
• Low crosstalk between switches: -50 dB
typo
@
fis
=
8 MHz, RL
=
1 kn
• Transmission-gate logic implementation
• Matched control-input to signal-output
• Analog-to-digital
&
digital-to-analog
capacitance: Reduces output signal
conversion
transients
• Digital control of frequency, impedance,
• Frequency response, switch on
=
40 MHz
phase, and analog-signal gain
(typ.)
• 100% tested for quiescent current at 20 V
• 5-V, 10-V, and 15-V parametric ratings
• Meets all requirements of JEOEC Tentative
Standard No.13A, "Standard Specifications
for Description of "B" Series CMOS Devices"
MAXIMUM
RATINGS,
Absolute-MaxImum Values
DC SUPPL Y-VOL TAGE RANGE. (VDD'
(Voltages referl!nced to VSS Termlnall
-05 to +20 V
INPUT VOLTAGE RANGE. ALL INPUTS
-05 to V DD +05 V
DC INPUT CURRENT. ANY ONE INPUT (except for
TRANSMIS~I.)N
GATE which IS 25 mAl
±10 mA
POWER DISSIPATION PoER PACKAGE (PO'
For T A : -40 to +60 C IPACKAGE TYPE E)
°
500mW
0
Derate Lln"_ '., at 12 mWI C to 200 mW
For T A : +60 to +85
~
(PACKAGE TYPE E)
(PACKAGE TYPES D. F)
For T A
=
-55 to +100
°
500mW
For T A: +100 to +125 C (PACKAGE TYPES D. F)
Derate Linearly at 12 mWI C to 200 mW
DEVICE DISSIPATION PER OUTPUT TRANSISTOR
FOR TA
=
FULL PACKAGE-TEMPERATURE RANGE (All Package Types)
100mW
OPERATING-TEMPERATURE RANGE (T A)
PACKAGE TYPES 0, F. H
-55 to +125°C
PACKAGE TYPE E
-40 to +85:C
STORAGE TEMPERATURE RANGE (T
st
I
-65 to +150 C
LEAD TEMPERATURE lOURING
SOLD~RINGI
At distance 1/16 ±
1/32
Inch 1159 ± 079 mml from case for 10 s max
f
NORMAL OPERATION
CONTROL-LINE BIASING
SWITCH ON.Vc"-·VDO
SWITCH OFF, VC -0' 'VSS
~~~E·p'SUBSTRATES
CONNECTED TO VDD
g
----
DO
'*ALL CONTROL INPUTS ARE
PROTECTEO BY
COSI
MOS
PROTECTION NETWORK
Vss
RECOMMENDED OPERATING CONDITIONS
For maximum reliability, nominal operating conditions should be selected so that oper-
ation is always within the following ranges:
CHARACTERISTIC
Supply-Voltage Range (For T A
=
Full Package-
Temperature Range)
LIMITS
Min.
Max.
18
UNITS
FIg.
1 -
SchematIC dIagram of
1
of
4
identical
SWItches and its associated control
C/fCUltry.
3
V
218 ____________________________________________________________________________
RENESAS [ RENESAS TECHNOLOGY CORP ]
