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19-1505; Rev 0; 7/99
2.5
Ω
, Dual, SPST,
CMOS Analog Switches
General Description
The MAX4667/MAX4668/MAX4669 dual analog switches
feature low on-resistance of 2.5Ω max. On-resistance is
matched between switches to 0.5Ω max and is flat (0.5Ω
max) over the specified signal range. Each switch can
handle Rail-to-Rail
®
analog signals. The off-leakage cur-
rent is only 5nA max at +85°C. These analog switches
are ideal in low-distortion applications and are the pre-
ferred solution over mechanical relays in automatic test
equipment or applications where current switching is
required. They have low power requirements, use less
board space, and are more reliable than mechanical
relays.
The MAX4667 has two normally closed (NC) switches,
the MAX4668 has two normally open (NO) switches,
and the MAX4669 has one NC and one NO switch that
guarantee break-before-make operation.
These switches operate from a +4.5V to +36V single
supply or from ±4.5V to ±20V dual supplies. All digital
inputs have +0.8V and +2.4V logic thresholds, ensuring
TTL/CMOS-logic compatibility when using ±15V sup-
plies or a single +12V supply.
o
Low On-Resistance (2.5Ω max)
o
Guaranteed R
ON
Match Between Channels
(0.5Ω max)
o
Guaranteed R
ON
Flatness over Specified Signal
Range (0.5Ω max)
o
Guaranteed Break-Before-Make (MAX4669)
o
Rail-to-Rail Signal Handling
o
Guaranteed ESD Protection >2kV
per Method 3015.7
o
+4.5V to +36V Single-Supply Operation
±4.5V to ±20V Dual-Supply Operation
o
TTL/CMOS-Compatible Control Inputs
Features
MAX4667/MAX4668/MAX4669
Ordering Information
PART
MAX4667CSE
MAX4667CPE
MAX4667ESE
MAX4667EPE
TEMP. RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 Narrow SO
16 Plastic DIP
16 Narrow SO
16 Plastic DIP
Applications
Reed Relay Replacement
Test Equipment
Communication Systems
PBX, PABX Systems
Audio-Signal Routing
Avionics
Ordering Information continued at end of data sheet.
______________________Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
N.C.
IN1
N.C.
V-
GND
N.C.
IN2
N.C.
1
2
3
4
5
6
7
8
16
15
14
13
NC1
N.C.
COM1
V+
V
L
COM2
N.C.
NC2
N.C.
IN1
N.C.
V-
GND
N.C.
IN2
N.C.
1
2
3
4
5
6
7
8
16
15
14
13
NO1
N.C.
COM1
V+
V
L
COM2
N.C.
NO2
N.C.
IN1
N.C.
V-
GND
N.C.
IN2
N.C.
1
2
3
4
5
6
7
8
16
15
14
13
NO1
N.C.
COM1
V+
V
L
COM2
N.C.
NC1
MAX4667
12
11
10
9
MAX4668
12
11
10
9
MAX4669
12
11
10
9
SO/DIP
MAX4667
LOGIC
0
1
SWITCH
ON
OFF
0
1
SO/DIP
MAX4668
LOGIC
SWITCH
OFF
ON
LOGIC
0
1
SO/DIP
MAX4669
SWITCH 1
OFF
ON
SWITCH 2
ON
OFF
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
2.5
Ω
, Dual, SPST,
CMOS Analog Switches
MAX4667/MAX4668/MAX4669
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +44V
V- to GND ...............................................................+0.3V to -44V
V+ to V-...................................................................-0.3V to +44V
V
L
to GND ........................................(GND - 0.3V) to (V+ + 0.3V)
All Other Pins to GND (Note 1) .............(V- - 0.3V) to (V+ + 0.3V)
Continuous Current (COM_, NO_, NC_).........................±100mA
Peak Current (COM_, NO_, NC_)
(pulsed at 1ms, 10% duty cycle)................................ ±300mA
Continuous Power Dissipation (T
A
= +70°C)
Narrow SO (derate 8.70mW/°C above +70°C) .............696mW
Plastic DIP (derate 10.53mW/°C above +70°C) ...........842mW
Operating Temperature Ranges
MAX466_C_E ......................................................0°C to +70°C
MAX466_E_E ...................................................-40°C to +85 °C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1:
Signals on NC_, NO_, COM_, or IN_ exceeding V+ or V- will be clamped by internal diodes. Limit the forward diode current to
maximum current rating.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = +15V, V- = -15V, V
L
= +5V, V
IN_H
= +2.4V, V
IN_L
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 2)
PARAMETER
ANALOG SWITCH
Input Voltage Range
(Note 3)
COM_ to NO_, COM_ to NC_
On-Resistance
COM_ to NO_, COM_ to NC_
On-Resistance Match Between
Channels (Notes 3, 4)
COM_ to NO_, COM_ to NC_
On-Resistance Flatness
(Notes 3, 5)
Off-Leakage Current
(NO_ or NC_) (Note 6)
COM_ Off-Leakage Current
(Note 6)
COM_ On-Leakage Current
(Note 6)
LOGIC INPUT
Input Current with Input Voltage
High
Input Current with Input Voltage
Low
Logic Input Voltage High
Logic Input Voltage Low
I
IN_H
I
IN_L
V
IN_H
V
IN_L
IN_ = 2.4V, all others = 0.8V
IN_ = 0.8V, all others = 2.4V
-0.5
-0.5
2.4
0.8
0.001
0.001
0.5
0.5
µA
µA
V
V
V
COM_,
V
NO_,
V
NC_
R
ON
I
COM_
= 10mA,
V
NO_
or V
NC_
= ±10V
I
COM_
= 10mA; V
NO_
or V
NC_
= -5V, 0, 5V
I
COM_
= 10mA,
V
NO_
or V
NC_
= ±10V
V
COM_
= ±10V,
–
V
NO_
or V
NC_
=
+
10V
V
COM_
= ±10V,
–
V
NO_
or V
NC_
=
+
10V
V
COM_
= ±10V,
V
NO_
or V
NC_
= ±10V
or floating
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-0.5
-5
-0.5
-5
-1
-20
0.02
0.01
0.01
0.1
0.05
V-
1.6
V+
2.5
3
0.4
0.5
0.4
0.5
0.5
5
0.5
5
1
nA
20
nA
nA
Ω
V
Ω
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
∆R
ON
Ω
R
FLAT(ON)
I
NO_,
I
NC_
I
COM_(OFF)
I
COM_(ON)
2
_______________________________________________________________________________________
2.5
Ω
, Dual, SPST,
CMOS Analog Switches
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +15V, V- = -15V, V
L
= +5V, V
IN_H
= +2.4V, V
IN_L
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 2)
PARAMETER
POWER SUPPLY
Power-Supply Range
T
A
= +25°C
Positive Supply Current
I+
V
IN
= 0 or 5V
T
A
= T
MIN
to T
MAX
T
A
= +25°C
Negative Supply Current
I-
V
IN
= 0 or 5V
T
A
= T
MIN
to T
MAX
T
A
= +25°C
Logic Supply Current
I
L
V
IN
= 0 or 5V
T
A
= T
MIN
to T
MAX
T
A
= +25°C
Ground Current
I
GND
V
IN
= 0 or 5V
T
A
= T
MIN
to T
MAX
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make Time Delay
(MAX4669)
Charge Injection
Off-Isolation (Note 7)
Crosstalk (Note 8)
NC_ or NO_ Capacitance
COM_ Off-Capacitance
On-Capacitance
Q
V
ISO
V
CT
C
OFF
C
COM
C
COM
t
ON
t
OFF
V
COM_
= ±10V,
Figure 2
V
COM_
= ±10V,
Figure 2
V
COM
= 10V
C
L
= 1.0nF, V
GEN
= 0, R
GEN
= 0, Figure 3
R
L
= 50Ω, C
L
= 5pF, f = 1MHz, Figure 4
R
L
= 50Ω, C
L
= 5pF, f = 1MHz, Figure 5
f = 1MHz, Figure 6
f = 1MHz, Figure 6
f = 1MHz, Figure 7
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
5
30
450
-60
-66
65
65
290
90
130
275
400
175
300
ns
ns
ns
pC
dB
dB
pF
pF
pF
5
5
5
-0.5
0.001
5
0.5
µA
5
-0.5
0.001
5
0.5
µA
5
-0.5
0.001
5
0.5
µA
±4.5
-0.5
0.001
±20.0
0.5
µA
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX4667/MAX4668/MAX4669
_______________________________________________________________________________________
3
2.5
Ω
, Dual, SPST,
CMOS Analog Switches
MAX4667/MAX4668/MAX4669
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = +12V, V- = 0, V
L
= +5V, V
IN_H
= +2.4V, V
IN_L
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 2)
PARAMETER
ANALOG SWITCH
Input Voltage Range
(Note 3)
COM_ to NO_, COM_ to NC_
On-Resistance
COM_ to NO_, COM_ to NC_
On-Resistance Match Between
Channels (Notes 3, 4)
COM_ to NO_, COM_ to NC_
On-Resistance Flatness
(Note 5)
Off-Leakage Current
(NO_ or NC_) (Notes 6, 9)
V
COM_,
V
NO_,
V
NC_
R
ON
I
COM_
= 10mA;
V
NO_
or V
NC_
= 10V
I
COM_
= 10mA;
V
NO_
or V
NC_
= 10V
I
COM_
= 10mA;
V
NO_
or V
NC_
= 3V,
6V, 0V
V
COM_
= 1V, 10V;
V
NO_
or V
NC_
= 1V,
10V
V
COM_
= 10V, 1V;
V
NO_
or V
NC_
= 1V,
10V
V
COM_
= 1V, 10V;
V
NO_
or V
NC_
= 1V,
10V, or floating
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-0.5
-5
-0.5
-5
-1
-20
0.01
0.01
0.01
0.05
0.05
0
3
V+
4
5
0.4
0.5
0.5
0.5
0.5
nA
5
0.5
nA
5
1
nA
20
Ω
V
Ω
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
∆R
ON
Ω
R
FLAT(ON)
I
NO_
, I
NC_
COM Off-Leakage Current
(Notes 6, 9)
I
COM_(OFF)
COM On-Leakage Current
(Notes 6, 9)
LOGIC INPUT
Input Current with
Input Voltage High
Input Current with
Input Voltage Low
Logic Input Voltage High
Logic Input Voltage Low
I
COM_(ON)
I
IN_H
I
IN_L
V
IN_H
V
IN_L
IN_ = 2.4V, all others = 0.8V
IN_ = 0.8V, all others = 2.4V
-0.5
-0.5
2.4
0.001
0.001
0.5
0.5
µA
µA
V
0.8
V
4
_______________________________________________________________________________________
微控制器 MCU
