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High-Current, 10
Ω
, SPST, CMOS
Analog Switches
General Description
Maxim’s MAX4655–MAX4658 are medium-voltage
CMOS analog switches with low on-resistance of 10Ω
max, specifically designed to handle large switch cur-
rents. With a switch capability of up to 400mA peak cur-
rent and 300mA continuous current (MAX4655/
MAX4656), and up to 300mA peak current and 150mA
continuous current (MAX4657/MAX4658), these parts
can switch loads as low as 25Ω. They can replace reed
relays with a million times the speed and virtually unlim-
ited number of lifetime cycles. Normal power consump-
tion is only 3mW, whether the switch is on or off. These
parts are TTL/CMOS compatible and will switch any
voltage within its power-supply range.
These are SPST (single-pole/single-throw) switches.
The MAX4655/MAX4657 are normally closed (NC),
while the MAX4656/MAX4658 are normally open (NO).
The difference between the MAX4655/MAX4656 and
the MAX4657/MAX4658 is in the power dissipation of
their packages. Refer to the
Absolute Maximum Ratings
and the
Electrical Characteristics.
The MAX4655–MAX4658 power-supply range is from
±4.5V to ±20V for dual-supply operation and +9V to
+40V for single-supply operation. These switches can
operate from any combination of supplies, within a 40V
V+ to V- range. They conduct equally well in either direc-
tion and can handle rail-to-rail analog signals. The off-
leakage current is only 1nA max at T
A
= +25°C. They are
available in 8-pin µMAX
®
, TDFN, and SO packages, with
exposed paddle options for high-power applications.
Features
♦
High Continuous Current Handling
300mA (MAX4655/MAX4656)
150mA (MAX4657/MAX4658)
♦
High Peak Current Handling
400mA (MAX4655/MAX4656)
300mA (MAX4657/MAX4658)
♦
10Ω (max) On-Resistance (±15V supplies)
♦
V
L
Not Required
♦
1Ω (max) R
ON
Flatness over Specified Signal
Range
♦
Rail-to-Rail Signal Handling
♦
+12V Single Supply or ±15V Dual Supply
Operation
♦
Pin Compatible with DG417, DG418
MAX4655–MAX4658
Ordering Information
PART
MAX4655ETA
MAX4655EUA
MAX4655ESA
MAX4656ETA
MAX4656EUA
MAX4656ESA
MAX4657EUA
MAX4657ESA
MAX4658EUA
MAX4658ESA
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 TDFN-EP*
8 µMAX
8 SO
8 TDFN-EP*
8 µMAX
8 SO
8 µMAX
8 SO
8 µMAX
8 SO
TOP
MARK
AKT
AAAL
—
AKU
AAAM
—
—
—
—
—
Applications
Relay Replacement
Test Equipment
Communication Systems
xDSL Modems
PBX, PABX Systems
Audio Signal Routing
Audio Systems
PC Multimedia Boards
Redundant/Backup Systems
*EP
= Exposed paddle.
Pin Configurations/
Functional Diagrams/Truth Tables
TOP VIEW
COM
N.C.
1
2
8
7
6
MAX4655/MAX4657
5
NC
V-
IN
N.C.
COM
N.C.
1
2
8
7
6
MAX4656/MAX4658
5
NO
V-
IN
N.C.
GND
3
V+
4
GND
3
V+
4
μMAX/SO/TDFN
MAX4655/MAX4657
LOGIC
SWITCH
0
1
ON
OFF
μMAX/SO/TDFN
MAX4656/MAX4658
LOGIC
SWITCH
0
1
N.C. = NO CONNECT
NC = NORMALLY CLOSED
OFF
ON
µMAX is a registered trademark of Maxim Integrated Products, Inc.
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
High-Current, 10
Ω
, SPST, CMOS
Analog Switches
MAX4655–MAX4658
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +44V
V- to GND ...............................................................-44V to +0.3V
V+ to V-...................................................................-0.3V to +44V
All Other Pins to GND (Note 1)..................V- - 0.3V to V+ + 0.3V
Continuous Current, COM, NO, NC
(MAX4655/MAX4656) ..................................................±300mA
Continuous Current, COM, NO, NC
(MAX4657/MAX4658) ..................................................±150mA
Continuous Current, IN .....................................................±30mA
Peak Current, COM, NO, NC
(pulsed at 1ms, 10% duty cycle)
MAX4655/MAX4656.................................................±400mA
(pulsed at 1ms, 10% duty cycle)
MAX4657/MAX4658.................................................±300mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin TDFN (derate 24.4mW/°C above +70°C) ........1951mW
8-Pin µMAX-EP (derate 10.3mW/°C above +70°C)
MAX4655/MAX4656 .................................................825mW
8-Pin µMAX (derate 4.50mW/°C above +70°C)
MAX4657/MAX4658 .................................................362mW
8-Pin SO-EP (derate 18.9mW/°C above +70°C)
MAX4655/MAX4656 ...............................................1509mW
8-Pin SO (derate 5.88mW/°C above +70°C)
MAX4657/MAX4658 .................................................471mW
Operating Temperature Ranges
MAX4655–MAX4658 .......................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1:
Signals on NC, NO, COM, or IN exceeding V+ or V- will be clamped by internal diodes. Limit forward diode current to max-
imum 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
IH
= 2.4V, V
IL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
(Notes 2, 7, 8)
PARAMETER
ANALOG SWITCH
Analog Signal Range
On-Resistance
On-Resistance Flatness
(Note 3)
NO or NC Off-Leakage
Current (Note 4)
COM Off-Leakage
Current (Note 4)
COM On-Leakage
Current (Note 4)
V
NO
, V
NC
,
V
COM
R
ON
R
FLAT (ON)
I
NO(OFF)
or
I
NC(OFF)
I
COM(OFF)
I
COM
= 100mA;
V
NO
or V
NC
=
±10V
I
COM
= 100mA;
V
NO
or V
NC
= -5V, 0, +5V
V
COM
= +14.5V, -14.5V;
V
NO
or V
NC
= -14.5V, +14.5V
V
COM
= +14.5V, -14.5V;
V
NO
or V
NC
= -14.5V, +14.5V
V
COM
= +14.5V, -14.5V;
V
NO
or V
NC
= +14.5V,
-14.5V, or floating
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
-1
-10
-1
-10
-2
-20
0.01
0.01
0.3
V-
7
V+
10
15
1
1.5
+1
10
+1
+10
+2
+20
nA
V
Ω
Ω
nA
nA
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
I
COM(ON)
DYNAMIC CHARACTERISTICS
V
NO
or V
NC
= 10V;
R
L
= 50Ω; MAX4655/4656,
R
L
= 100Ω; MAX4657/4658,
C
L
= 35pF; Figure 3
V
NO
or V
NC
= 10V;
R
L
= 50Ω; MAX4655/4656,
R
L
= 100Ω; MAX4657/4658,
C
L
= 35pF; Figure 3
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
75
110
200
ns
300
100
ns
150
Turn-On Time
t
ON
Turn-Off Time
t
OFF
2
_______________________________________________________________________________________
High-Current, 10
Ω
, SPST, CMOS
Analog Switches
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +15V, V- = -15V, V
IH
= 2.4V, V
IL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
(Notes 2, 7, 8)
PARAMETER
Charge Injection
-3dB Bandwidth
Off-Isolation (Note 5)
Total Harmonic Distortion
NO or NC Off-Capacitance
COM Off-Capacitance
COM On-Capacitance
DIGITAL I/O
Input Logic High
Input Logic Low
Input Leakage Current
POWER SUPPLY
Power-Supply Range
V
IN
= 0 or 5V, V
N_
= 3V;
I
SWITCH
= 200mA,
MAX4655/4656;
I
SWITCH
= 100mA,
MAX4657/4658
V
IN
= 0 or 5V, V
N_
= 3V;
I
SWITCH
= 200mA,
MAX4655/4656;
I
SWITCH
= 100mA,
MAX4657/4658
V
IN
= 0 or 5V, V
N_
= 3V;
I
SWITCH
= 200mA,
MAX4655/4656;
I
SWITCH
= 100mA,
MAX4657/4658
T
MIN
to T
MAX
+25°C
±4.5
90
±20
150
µA
T
MIN
to T
MAX
300
V
V
IH
V
IL
I
IN
V
IN
= 0.8V or 2.4V
T
MIN
to T
MAX
T
MIN
to T
MAX
T
MIN
to T
MAX
-1
2.4
0.8
+1
V
V
µA
SYMBOL
Q
BW
V
ISO
THD
C
NO(OFF)
,
C
NC(OFF)
C
COM(OFF)
C
COM(ON)
f = 1MHz; R
L
= 50Ω;
Figure 5
f = 20Hz to 20kHz,
V
N_
= 5V
p-p
; R
L
= 600Ω
f = 1MHz; Figure 6
f = 1MHz; Figure 6
f = 1MHz; Figure 7
CONDITIONS
V
GEN
= 0; R
GEN
= 0;
C
L
= 1nF; Figure 4
T
A
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
MIN
TYP
23
210
-77
0.007
25
25
67
MAX
UNITS
pC
MHz
dB
%
pF
pF
pF
MAX4655–MAX4658
Positive Supply Current
I+
+25°C
10
50
µA
Negative Supply Current
I-
T
MIN
to T
MAX
100
+25°C
80
130
µA
Ground Current
I
GND
T
MIN
to T
MAX
260
_______________________________________________________________________________________
3
High-Current, 10
Ω
, SPST, CMOS
Analog Switches
MAX4655–MAX4658
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = +12V, V- = 0, V
IH
= 2.4V, V
IL
= 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
Analog Signal Range
On-Resistance
On-Resistance Flatness
(Note 3)
V
IN
R
ON
R
FLAT (ON)
I
COM
= 50mA,
V
NO
or V
NC
= 10V
I
COM
= 50mA,
V
NO
or V
NC
= 2V, 6V, 10V
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
2.2
0
15
V+
22
33
4
5
V
Ω
Ω
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
DYNAMIC CHARACTERISTICS
V
NO
or V
NC
= 10V;
R
L
= 100Ω MAX4655/4656,
R
L
= 200Ω MAX4657/4658,
C
L
= 35pF; Figure 3
V
NO
or V
NC
= 10V;
R
L
= 100Ω MAX4655/4656,
R
L
= 200Ω MAX4657/4658,
C
L
= 35pF; Figure 3
V
GEN
= 0; R
GEN
= 0;
C
L
= 1nF; Figure 4
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
1
65
140
200
ns
300
125
ns
200
pC
Turn-On Time
t
ON
Turn-Off Time
t
OFF
Charge Injection
POWER SUPPLY
Power-Supply Range
Q
V+
V
IN
= 0 or 12V,
I
SWITCH
= 100mA,
MAX4655/4656;
I
SWITCH
= 50mA,
MAX4657/4658
I+
V
IN
= 0 or 5V,
I
SWITCH
= 100mA,
MAX4655/4656;
I
SWITCH
= 50mA,
MAX4657/4658
+25°C
+25°C
9
25
40
100
V
Positive Supply Current
(Note 6)
T
MIN
to T
MAX
200
µA
46
125
T
MIN
to T
MAX
200
Note 2:
The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3:
Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal range.
Note 4:
Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at T
A
= +25°C.
Note 5:
Off-isolation = 20log10 [V
COM
/ (V
NC
or V
NO
)], V
COM
= output, V
NC
or V
NO
= input to off switch.
Note 6:
Guaranteed by testing with dual supplies.
Note 7:
-40°C specifications are guaranteed by design.
Note 8:
TDFN parts are tested at +25°C and guaranteed by design over the entire temperature range.
4
_______________________________________________________________________________________
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