19-1513; Rev 0; 7/99
1.25
Ω
, Dual SPST,
CMOS Analog Switches
General Description
The MAX4680/MAX4690/MAX4700 dual analog switches
feature low on-resistance of 1.25Ω max. On-resistance is
matched between switches to 0.3Ω max and is flat (0.3Ω
max) over the specified signal range. Each switch can
handle Rail-to-Rail
®
analog signals. Off-leakage current is
only 5nA max at +85°C. These analog switches are ideal
in low-distortion applications and are the preferred solu-
tion over mechanical relays in automatic test equipment
or applications where current switching is required. They
have low power requirements, require less board space,
and are more reliable than mechanical relays.
The MAX4680 has two NC (normally closed) switches,
and the MAX4690 has two NO (normally open) switch-
es. The MAX4700 has one NC and one NO switch and
features guaranteed break-before-make switching.
These devices operate from a +4.5V to +36V single
supply or from ±4.5V to ±20V dual supplies. A separate
logic supply pin guarantees TTL/CMOS-logic compati-
bility while operating across the entire supply voltage
range.
o
Low On-Resistance (1.25Ω max)
o
Guaranteed R
ON
Match Between Channels
(0.3Ω max)
o
Guaranteed R
ON
Flatness Over Specified
Signal Range (0.3Ω max)
o
Rail-to-Rail Signal Handling
o
Guaranteed Break-Before-Make (MAX4700)
o
+4.5V to +36V Single-Supply Operation
±4.5V to ±20V Dual-Supply Operation
o
TTL/CMOS-Compatible Control Inputs
o
>2kV ESD Protection per Method 3015.7
Features
MAX4680/MAX4690/MAX4700
Ordering Information
PART
MAX4680CAE
MAX4680CWE
MAX4680CPE
MAX4680EAE
MAX4680EWE
MAX4680EPE
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 SSOP
16 Wide SO
16 Plastic DIP
16 SSOP
16 Wide SO
16 Plastic DIP
Applications
Reed Relay Replacement
Test Equipment
Communication Systems
PBX, PABX Systems
Data Acquisition Systems
Sample-and-Hold Circuits
Ordering Information continued at end of data sheet.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
N.C. 1
IN1 2
N.C. 3
V- 4
GND 5
N.C. 6
IN2 7
N.C. 8
16 NC1
15 N.C.
14 COM1
13 V+
N.C. 1
IN1 2
N.C. 3
V- 4
GND 5
N.C. 6
IN2 7
N.C. 8
16 N01
15 N.C.
14 COM1
13 V+
N.C. 1
IN1 2
N.C. 3
V- 4
GND 5
N.C. 6
IN2 7
N.C. 8
16 N01
15 N.C.
14 COM1
13 V+
MAX4680
12 V
L
11 COM2
10 N.C.
9
NC2
MAX4690
12 V
L
11 COM2
10 N.C.
9
NO2
MAX4700
12 V
L
11 COM2
10 N.C.
9
NC1
SSOP/SO/DIP
MAX4680
LOGIC
SWITCH
0
ON
1
OFF
N.C. = NOT INTERNALLY CONNECTED
SSOP/SO/DIP
MAX4690
LOGIC
SWITCH
0
OFF
1
ON
SWITCHES SHOWN FOR LOGIC “0” INPUT
SSOP/SO/DIP
LOGIC
0
1
MAX4700
SWITCH 1 SWITCH 2
OFF
ON
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.
1.25
Ω
, Dual SPST,
CMOS Analog Switches
MAX4680/MAX4690/MAX4700
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.................................................... -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_) ....................... ±200mA
Peak Current (COM_, NO_, NC_)
(pulsed at 1ms, 10% duty cycle) .............................. ±300mA
Continuous Power Dissipation (T
A
= +70°C)
SSOP (derate 7.1mW/°C above +70°C) ......................571mW
Wide SO (derate 9.52mW/°C above +70°C) ...............762mW
Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW
Operating Temperature Ranges
MAX4_ _0C_E ....................................................0°C to +70°C
MAX4_ _0E_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- are clamped by internal diodes. Limit 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_ or NC_
On-Resistance
COM_ to NO_ or NC_
On-Resistance Match Between
Channels (Notes 3, 4)
COM_ to NO_ or 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
I
IN_H
I
IN_L
IN_ = 2.4V, all others = 0.8V
IN_ = 0.8V, all others = 2.4V
-0.5
-0.5
0.001
0.001
0.5
µA
0.5
V
COM_,
V
NO_,
V
NC_
R
ON
T
A
= +25°C
I
COM_
= 10mA,
V
NO_
or V
NC_
= ±10V, T
A
= T
MIN
to T
MAX
I
COM_
= 10mA,
V
NO_
or V
NC_
= ±10V
I
COM_
= 10mA; V
NO_
or V
NC_
= -5V, 0, 5V
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
-0.5
-5
-0.5
-2.5
-1
-20
0.01
0.01
0.01
0.06
V-
0.9
V+
1.25
1.5
0.09
0.3
0.5
0.3
0.5
0.5
5
0.5
2.5
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
_______________________________________________________________________________________
1.25
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
Logic Input Voltage High
Logic Input Voltage Low
POWER SUPPLY
Power-Supply Range
Positive Supply Current
Negative Supply Current
Logic Supply Current
Ground Current
I+
I-
I
L
I
GND
V
IN_
= 0 or 5V
V
IN_
= 0 or 5V
V
IN_
= 0 or 5V
V
IN_
= 0 or 5V
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
5
30
550
-53
-65
115
115
520
90
±4.5
-0.5
-5
-0.5
-5
-0.5
-5
-0.5
-5
130
0.01
0.01
0.01
0.01
±20.0
0.5
5
0.5
5
0.5
5
0.5
5
275
400
175
300
V
µA
µA
µA
µA
SYMBOL
V
IN_H
V
IN_L
CONDITIONS
MIN
2.4
0.8
TYP
MAX
UNITS
V
V
MAX4680/MAX4690/MAX4700
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make Time
(MAX4700 only)
Charge Injection
Off-Isolation (Note 7)
Crosstalk (Note 8)
NC_ or NO_ Capacitance
COM Off-Capacitance
On-Capacitance
t
ON
t
OFF
t
OPEN
Q
V
ISO
V
CT
C
OFF
C
COM
C
COM
V
COM_
= ±10V,
Figure 2
V
COM_
= ±10V,
Figure 2
ns
ns
ns
pC
dB
dB
pF
pF
pF
V
COM_
= ±10V, Figure 3, T
A
= +25°C
C
L
= 1.0nF, V
GEN
= 0, R
GEN
= 0,
Figure 4
R
L
= 50Ω, C
L
= 5pF, f = 1MHz,
Figure 5
R
L
= 50Ω, C
L
= 5pF, f = 1MHz,
Figure 6
f = 1MHz, Figure 7
f = 1MHz, Figure 7
f = 1MHz, Figure 8
_______________________________________________________________________________________
3
1.25
Ω
, Dual SPST,
CMOS Analog Switches
MAX4680/MAX4690/MAX4700
ELECTRICAL CHARACTERISTICS–Single Supply
(V+ = +12V, V- = 0, V
L
= +5V, V
INH
= 2.4V, V
INL
= 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_ or NC_
On-Resistance
COM_ to NO_ or NC_
On-Resistance Match Between
Channels (Notes 3, 4)
COM_ to NO_ or NC_
On-Resistance Flatness
(Notes 3, 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, 9V
V
COM_
= 1V, 10V;
V
NO_
or V
NC_
= 10V, 1V
V
NO_
or V
NC_
= 10V,
1V; V
COM_
= 1V, 10V
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
0.2
0.1
GND
1.6
V+
3
3.5
0.4
0.5
0.4
0.5
0.5
nA
5
0.5
nA
5
1
nA
20
Ω
Ω
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Ω
∆R
ON
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
POWER SUPPLY
Power-Supply Range
Positive Supply Current
Logic Supply Current
Ground Current
I
COM_(ON)
V
COM_
= 1V, 10V;
T
A
= +25°C
V
NO_
or V
NC_
= 1V, 10V,
T
A
= T
MIN
to T
MAX
or floating
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
+4.5
+36.0
0.001
0.001
0.001
0.5
5
0.5
5
0.5
5
V
V
µA
µA
µA
I+
I
L
I
GND
V
IN_
= 0 or 5V
V
IN_
= 0 or 5V
V
IN_
= 0 or 5V
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
-0.5
5
4
_______________________________________________________________________________________
1.25
Ω
, Dual SPST,
CMOS Analog Switches
ELECTRICAL CHARACTERISTICS—Single Supply (continued)
(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
SYMBOL
V
COM_
= 10V,
Figure 2
V
COM_
= 10V,
Figure 2
CONDITIONS
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
5
125
-60
-65
175
175
275
100
MIN
TYP
225
MAX
400
500
250
350
UNITS
MAX4680/MAX4690/MAX4700
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time (Note 3)
Turn-Off Time (Note 3)
Break-Before-Make Time
(Note 3)
Charge Injection
Crosstalk (Note 8)
NC_ or NO_ Capacitance
COM Off-Capacitance
On-Capacitance
t
ON
t
OFF
t
OPEN
Q
V
CT
C
OFF
C
COM
C
COM
ns
ns
ns
pC
dB
pF
pF
pF
V
COM_
= 10V, Figure 3, T
A
= +25°C
C
L
= 1.0nF, V
GEN
= 0, R
GEN
= 0,
Figure 4
R
L
= 50Ω, C
L
= 5pF, f = 1MHz,
Figure 6
f = 1MHz, Figure 7
f = 1MHz, Figure 7
f = 1MHz, Figure 8
Note 2:
The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in
this data sheet.
Note 3:
Guaranteed by design.
Note 4:
∆R
ON
= R
ON(MAX)
- R
ON(MIN)
.
Note 5:
Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal range.
Note 6:
Leakage parameters are 100% tested at maximum-rated hot temperature and guaranteed by correlation at +25°C.
Note 7:
Off-isolation = 20log
10
[V
COM
/ (V
NC
or V
NO
)], V
COM
= output, V
NC
or V
NO
= input to off switch.
Note 8:
Between any two switches.
Note 9:
Leakage testing at single supply is guaranteed by testing with dual supplies.
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. V
COM
(DUAL SUPPLIES)
MAX4680 TOC01
ON-RESISTANCE vs. V
COM
AND TEMPERATURE (DUAL SUPPLIES)
MAX4680 TOC02
ON-RESISTANCE vs. V
COM
(SINGLE SUPPLY)
V- = GND
V+ = +5V
4
MAX4680 TOC03
2.5
V+, V- = ±5V
2.0
1.2
V+, V- = ±15V
1.1
1.0
R
ON
(Ω)
T
A
= +85°C
5
R
ON
(Ω)
V+, V- = ±15V
1.0
0.8
0.7
0.6
T
A
= +25°C
R
ON
(Ω)
1.5
0.9
3
V+ = +12V
2
0.5
V+, V- = ±20V
0
-20 -16 -12 -8
-4
0
4
8
12 16 20
V
COM
(V)
0.5
0.4
T
A
= -40°C
1
V+ = +24V
0
-15 -12 -9
-6
-3
0
3
6
9
12 15
0
2
4
6
8 10 12 14 16 18 20 22 24
V
COM
(V)
V
COM
(V)
_______________________________________________________________________________________
5
单片机
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
