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NC7SZ66 TinyLogic Low Voltage UHS Single SPST Normally Open Analog Switch or 1-Bit Bus Switch
November 1996
Revised January 2001
NC7SZ66
TinyLogic
Low Voltage UHS Single SPST
Normally Open Analog Switch or 1-Bit Bus Switch
General Description
The NC7SZ66 is a ultra high-speed (UHS) CMOS compati-
ble single-pole/single-throw (SPST) analog switch or 1-bit
bus switch. The LOW on resistance of the switch allows
inputs to be connected to outputs with minimal propagation
delay and without generating additional ground bounce
noise. The device is organized as a 1-bit switch with a
switch enable (OE) signal. When OE is HIGH, the switch is
on and Port A is connected to Port B. When OE is LOW,
the switch is open and a high-impedance state exists
between the two ports.
Features
s
Space saving SOT23 or SC70 5-lead package
s
Broad V
CC
Operating Range 1.65V–5.5V
s
Rail-to-rail signal handling
s
5
Ω
switch connection between two ports
s
Minimal propagation delay through the switch
s
Low I
CC
s
Zero bounce in flow-through mode
s
Control input compatible with CMOS input levels
s
>
250 MHz
−
3dB bandwidth
Ordering Code:
Order
Number
NC7SZ66M5
NC7SZ66M5X
NC7SZ66P5
NC7SZ66P5X
Package
Number
MA05B
MA05B
MAA05A
MAA05A
Product Code
Top Mark
7Z66
7Z66
Z66
Z66
Package Description
5-Lead SOT23, JEDEC MO-178, 1.6mm
5-Lead SOT23, JEDEC MO-178, 1.6mm
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide
Supplied As
250 Units on Tape and Reel
3k Units on Tape and Reel
250 Units on Tape and Reel
3k Units on Tape and Reel
Logic Symbol
Analog Symbol
Pin Descriptions
Pin Names
OE
A
B
Description
Switch Enable Input
Bus A I/O
Bus B I/O
Connection Diagram
Function Table
OE
L
H
B
0
HIGH-Z State
A
0
Function
Disconnect
Connect
(Top View)
TinyLogic is a trademark of Fairchild Semiconductor Corporation.
© 2001 Fairchild Semiconductor Corporation
DS012177
www.fairchildsemi.com
NC7SZ66
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
CC
)
DC Switch Voltage (V
S
)
DC Input Voltage (V
IN
) (Note 2)
DC Input Diode Current
(I
IK
) V
IN
<
0V
DC Output (I
OUT
) Sink Current
DC V
CC
/GND Current (I
CC
/I
GND
)
Storage Temperature Range
(T
STG
)
Junction Lead Temperature
under Bias (T
J
)
Junction Lead Temperature (T
L
)
(Soldering, 10 Seconds)
Power Dissipation (P
D
) @
+
85
°
C
SOT23-5
SC70-5
200 mW
150 mW
−
0.5V to
+
7.0V
−
0.5V to V
CC
+
0.5V
−
0.5V to
+
7.0V
−
50 mA
128 mA
Recommended Operating
Conditions
(Note 3)
Power Supply Operating (V
CC
)
Control Input Voltage (V
IN
)
Switch Input Voltage (V
IN
)
Switch Output Voltage (V
OUT
)
Input Rise and Fall Time (t
r
, t
f
)
Control Input; V
CC
=
2.3V
−
3.6V
Control Input; V
CC
=
4.5
−
5.5V
Switch I/O
Operating Temperature (T
A
)
Thermal Resistance (
θ
JA
)
SOT23-5
300
°
C/Watt
425
°
C/Watt
SC70-5
0 ns/V to 10 ns
0 ns/V to 5 ns
0 ns/V to DC
1.65V to 5.5V
0V to 5.5V
0V to V
CC
0V to V
CC
±
100 mA
−
65
°
C to
+
150
°
C
+
150
°
C
+
260
°
C
−
40
°
C to
+
85
°
C
Note 1:
The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Note 2:
The input and output negative voltage ratings may be exceeded if
the input and output diode current ratings are observed.
Note 3:
Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
V
IH
V
IL
I
IN
I
OFF
R
ON
Parameter
HIGH Level Input Voltage
LOW Level Input Voltage
Control Input Leakage Current
OFF Leakage Current
Switch On Resistance
(Note 4)
4.5
V
CC
(V)
1.65 to 1.95
2.3 to 5.5
1.65 to 1.95
2.3 to 5.5
0 to 5.5
1.65 to 5.5
3
5
7
3.0
2.3
1.8
I
CC
Quiescent Supply Current
1.65 to 5.5
4
10
5
13
7
25
T
A
= −40°C
to
+85°C
Min
0.75 V
CC
0.7 V
CC
0.25 V
CC
0.3 V
CC
±1.0
±10.0
7
12
15
9
20
12
30
28
60
10
Typ
(Note 5)
Units
Max
V
V
µA
µA
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
µA
0
≤
V
IN
≤
5.5V
0
≤
A, B
≤
V
CC
V
IN
=
0V, I
IN
=
30 mA
V
IN
=
2.4V, I
IN
=
15 mA
V
IN
=
4.5V, I
IN
=
30 mA
V
IN
=
0V, I
IN
=
24 mA
V
IN
=
3V, I
IN
=
24 mA
V
IN
=
0V, I
IN
=
8 mA
V
IN
=
2.3V, I
IN
=
8 mA
V
IN
=
0V, I
IN
=
4 mA
V
IN
=
1.8V, I
IN
=
4 mA
V
IN
=
V
CC
or GND
I
OUT
=
0
Conditions
Note 4:
Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the
voltages on the two (A or B) pins.
Note 5:
All typical values are at the specified V
CC
, and T
A
=
25°C.
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2
NC7SZ66
AC Electrical Characteristics
T
A
= −40°C
to
+85°C,
Symbol
Parameter
V
CC
(V)
t
PHL
, t
PLH
Prop Delay Bus to Bus
(Note 7)
1.65 to 1.95
2.3-2.7
3.0-3.6
4.5-5.5
t
PZL
, t
PZH
Output Enable Time
1.65 to 1.95
2.3-2.7
3.0-3.6
4.5-5.5
t
PLZ
, t
PHZ
Output Disable Time
1.65 to 1.95
2.3-2.7
3.0-3.6
4.5-5.5
Q
OIRR
BW
Charge Injection (Note 8)
Off Isolation (Note 9)
−3dB
Bandwidth
1.65-5.5
1.65-5.5
1.65-5.5
−50
>250
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
7.0
3.3
2.4
2.0
9.2
5.3
4.0
2.7
C
L
=
50 pF, RU= RD
=
500Ω
Min
Typ
(Note 6)
Max
4.3
1.2
0.8
0.3
14.2
7.0
5.5
4.5
18.2
9.0
7.0
5.0
ns
ns
ns
pC
dB
MHz
C
L
=
0.1 nF, V
GEN
=
0V,
R
GEN
=
0Ω, f
=
1 MHz
R
L
=
50
Ω,
C
L
=
5 pF,
f
=
10 MHz
RL
=
50
Ω
Note 6:
All typical values are at the specified V
CC
, and T
A
=
25°C.
Note 7:
This parameter is guaranteed by design but is not tested. The switch contributes no propagation delay other than the RC delay of the typical On
resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).
Note 8:
Guaranteed by design.
Note 9:
Off Isolation
=
20 log
10
[V
A
/V
BN
].
Units
Conditions
Fig. No.
ns
ns
ns
ns
ns
ns
V
IN
=
OPEN
Figures
1, 2
V
IN
=
2 x V
CC
for t
PZL
V
IN
=
0V for t
PZH
Figures
1, 2
V
IN
=
2 x V
CC
for t
PLZ
V
IN
=
0V for t
PHZ
Figures
1, 2
Figure 3
Figure 4
Figure 5
Capacitance
Symbol
C
IN
C
I/O
Parameter
Control Pin Input Capacitance
Input/Output Capacitance
Typ
2
6
Max
Units
pF
pF
Conditions
V
CC
=
0V
V
CC
=
5.0V
3
www.fairchildsemi.com
NC7SZ66
AC Loading and Waveforms
Input driven by 50Ω source terminated in 50Ω
C
L
includes load and stray capacitance.
Input PRR
=
1.0 MHz; t
w
=
500 ns
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
FIGURE 3. Charge Injection Test
FIGURE 4. Off Isolation
FIGURE 5. Bandwidth
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4
