General Description
Maxim's MAX4655MAX4658 are medium-voltage
CMOS analog switches with low on-resistance of 10
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 25. 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 MAX4655MAX4658 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 pad options for high-power applications.
Applications
Relay Replacement
Test Equipment
Communication Systems
xDSL Modems
PBX, PABX Systems
Audio Signal Routing
Audio Systems
PC Multimedia Boards
Redundant/Backup Systems
Features
High Continuous Current Handling
300mA (MAX4655/MAX4656)
150mA (MAX4657/MAX4658)
High Peak Current Handling
400mA (MAX4655/MAX4656)
300mA (MAX4657/MAX4658)
10 max On-Resistance (±15V supplies)
V
L
not Required
1 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
MAX4655MAX4658
High-Current, 10
, SPST, CMOS
Analog Switches
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
TOP VIEW
1
2
4
8
7
6
5
NC
V-
IN
N.C.
V+
GND
N.C.
COM
µ
MAX/SO/TDFN
SWITCHES SHOWN FOR LOGIC "0" INPUT
LOGIC
SWITCH
0
1
ON
OFF
MAX4655/MAX4657
1
2
4
8
7
6
5
NO
V-
IN
N.C.
V+
GND
N.C.
COM
LOGIC
SWITCH
0
1
OFF
ON
MAX4656/MAX4658
N.C. = NO CONNECT
NC = NORMALLY CLOSED
MAX4655/MAX4657
MAX4656/MAX4658
3
3
µ
MAX/SO/TDFN
19-1984; Rev 2; 2/04
PART
TEMP RANGE
PIN-PACKAGE
TOP
MARK
MAX4655
ETA
-40
°
C to +85
°
C
8 TDFN
AKT
MAX4655EUA
-40
°
C to +85
°
C
8 µMAX-EP*
AAAL
MAX4655ESA
-40
°
C to +85
°
C
8 SO-EP*
--
MAX4656
ETA
-40
°
C to +85
°
C
8 TDFN
AKU
MAX4656EUA
-40
°
C to +85
°
C
8 µMAX-EP*
AAAM
MAX4656ESA
-40
°
C to +85
°
C
8 SO-EP*
--
MAX4657
EUA
-40
°
C to +85
°
C
8 µMAX
--
MAX4657ESA
-40
°
C to +85
°
C
8 SO
--
MAX4658
EUA
-40
°
C to +85
°
C
8 µMAX
--
MAX4658ESA
-40
°
C to +85
°
C
8 SO
--
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
*EP = Exposed paddle.
Pin Configurations/
Functional Diagrams/Truth Tables
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
MAX4655MAX4658
High-Current, 10
, SPST, CMOS
Analog Switches
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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)
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.
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
MAX4655MAX4658 .......................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Analog Signal Range
V
NO
, V
NC
,
V
COM
V-
V+
V
+25°C 7
10
On-Resistance
R
ON
I
COM
= 100mA;
V
NO
or V
NC
=
±
10V
T
MIN
to T
MAX
15
+25°C
0.3
1
On-Resistance Flatness
(Note 3)
R
FLAT (ON )
I
COM
= 100mA;
V
NO
or V
NC
= -5V, 0, +5V
T
MIN
to T
MAX
1.5
+25°C -1
0.01
1
NO or NC Off-Leakage
Current (Note 4)
I
NO(OFF)
or
I
NC(OFF)
V
COM
= +14.5V, -14.5V;
V
NO
or V
NC
= -14.5V, +14.5V
T
MIN
to T
MAX
-10
10
nA
+25°C -1
0.01
1
COM Off-Leakage
Current (Note 4)
I
COM(OFF)
V
COM
= +14.5V, -14.5V;
V
NO
or V
NC
= -14.5V, +14.5V
T
MIN
to T
MAX
-10
10
nA
+25°C
-2
2
COM On-Leakage
Current (Note 4)
I
COM(ON)
V
COM
= +14.5V, -14.5V;
V
NO
or V
NC
= +14.5V,
-14.5V, or floating
T
MIN
to T
MAX
-20
20
nA
DYNAMIC CHARACTERISTICS
+25°C
110
200
Turn-On Time
t
ON
V
NO
or V
NC
= 10V;
R
L
= 50
; MAX4655/4656,
R
L
= 100
; MAX4657/4658,
C
L
= 35pF; Figure 3
T
MIN
to T
MAX
300
ns
+25°C
75
100
Turn-Off Time
t
OFF
V
NO
or V
NC
= 10V;
R
L
= 50
; MAX4655/4656,
R
L
= 100
; MAX4657/4658,
C
L
= 35pF; Figure 3
T
MIN
to T
MAX
150
ns
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.
MAX4655MAX4658
High-Current, 10
, SPST, CMOS
Analog Switches
_______________________________________________________________________________________
3
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
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
Charge Injection
Q
V
GEN
= 0; R
GEN
= 0;
C
L
= 1nF; Figure 4
+25°C 23
pC
-3dB Bandwidth
BW
+25°C
210
MHz
Off-Isolation (Note 5)
V
ISO
f = 1MHz; R
L
= 50
;
Figure 5
+25°C -77
dB
Total Harmonic Distortion
THD
f = 20H z to 20kH z,
V
N_
= 5V
p-p
; R
L
= 600
+25°C 0.007
%
NO
or NC
Off-Capacitance
C
NO(OFF)
,
C
NC(OFF)
f = 1MHz; Figure 6
+25°C
25
pF
COM Off-Capacitance
C
COM(OFF)
f = 1MHz; Figure 6
+25°C
25
pF
COM On-Capacitance
C
COM(ON)
f = 1MHz; Figure 7
+25°C
67
pF
DIGITAL I/O
Input Logic High
V
IH
T
MIN
to T
MAX
2.4
V
Input Logic Low
V
IL
T
MIN
to T
MAX
0.8
V
Input Leakage Current
I
IN
V
IN
= 0.8V or 2.4V
T
MIN
to T
MAX
-1
1
µA
POWER SUPPLY
Power-Supply Range
T
MIN
to T
MAX
±
4.5
±
20
V
+25°C 90
150
Positive Supply Current
I+
V
IN
= 0 or 5V, V
N_
= 3V;
I
SWITCH
= 200mA,
MAX4655/4656;
I
SWITCH
= 100mA,
MAX4657/4658
T
MIN
to T
MAX
300
µA
+25°C 10
50
Negative Supply Current
I-
V
IN
= 0 or 5V, V
N_
= 3V;
I
SWITCH
= 200mA,
MAX4655/4656;
I
SWITCH
= 100mA,
MAX4657/4658
T
MIN
to T
MAX
100
µA
+25°C 80
130
Ground Current
I
GND
V
IN
= 0 or 5V, V
N_
= 3V;
I
SWITCH
= 200mA,
MAX4655/4656;
I
SWITCH
= 100mA,
MAX4657/4658
T
MIN
to T
MAX
260
µA
MAX4655MAX4658
High-Current, 10
, SPST, CMOS
Analog Switches
4
_______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Analog Signal Range
V
IN
T
MIN
to T
MAX
0
V+
V
+25°C
15
22
On-Resistance
R
ON
I
COM
= 50mA,
V
NO
or V
NC
= 10V
T
MIN
to T
MAX
33
+25°C
2.2
4
On-Resistance Flatness
(Note 3)
R
FLAT (ON)
I
COM
= 50mA,
V
N O
or V
N C
= 2V , 6V , 10V
T
MIN
to T
MAX
5
DYNAMIC CHARACTERISTICS
+25°C
140
200
Turn-On Time
t
ON
V
NO
or V
NC
= 10V;
R
L
= 100
MAX4655/4656,
R
L
= 200
MAX4657/4658,
C
L
= 35pF; Figure 3
T
MIN
to T
MAX
300
ns
+25°C
65
125
Turn-Off Time
t
OFF
V
NO
or V
NC
= 10V;
R
L
= 100
MAX4655/4656,
R
L
= 200
MAX4657/4658,
C
L
= 35pF; Figure 3
T
MIN
to T
MAX
200
ns
Charge Injection
Q
V
GEN
= 0; R
GEN
= 0;
C
L
= 1nF; Figure 4
+25°C
1
pC
POWER SUPPLY
Power-Supply Range
V+
9
40
V
+25°C
25
100
V
IN
= 0 or 12V,
I
SWITCH
= 100mA,
MAX4655/4656;
I
SWITCH
= 50mA,
MAX4657/4658
T
MIN
to T
MAX
200
+25°C
46
125
Positive Supply Current
(Note 6)
I+
V
IN
= 0 or 5V,
I
SWITCH
= 100mA,
MAX4655/4656;
I
SWITCH
= 50mA,
MAX4657/4658
T
MIN
to T
MAX
200
µA
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)
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.
MAX4655MAX4658
High-Current, 10
, SPST, CMOS
Analog Switches
_______________________________________________________________________________________
5
-20
0
-10
10
20
ON-RESISTANCE vs. V
COM
(DUAL SUPPLIES)
MAX4655/58 toc01
V
COM
(V)
R
ON
(
)
0
5
15
10
20
25
A
B
D
C
E
A: V+ = +4.5V, V- = -4.5V D: V+ = +15V, V- = -15V
B: V+ = +10V, V- = -10V E: V+ = +20V, V- = -20V
C: V+ = +12V, V- = -12V
0
5
15
10
20
25
0
16
8
24
32
40
ON-RESISTANCE vs. V
COM
(SINGLE SUPPLY)
MAX4655/58 toc02
V
COM
(V)
R
ON
(
)
A
B
D
C
E
A: V+ = +9V, V- = 0
B: V+ = +12V, V- = 0
C: V+ = +24V, V- = 0
D: V+ = +36V, V- = 0
E: V+ = +40V, V- = 0
ON-RESISTANCE vs. V
COM
AND TEMPERATURE (DUAL SUPPLIES)
MAX4655/58 toc03
V
COM
(V)
R
ON
(
)
0
5
10
15
-15
-5
0
-10
5
10
15
T
A
= -40°C
T
A
= +85°C
T
A
= +25°C
25
20
15
10
5
0
6
2
4
8
10
12
ON-RESISTANCE vs. V
COM
AND TEMPERATURE (SINGLE SUPPLY)
MAX4655/58 toc04
V
COM
(V)
R
ON
(
)
T
A
= -40°C
T
A
= +85°C
T
A
= +25°C
-40
10
-15
35
60
85
LEAKAGE CURRENT
vs. TEMPERATURE
OFF-LEAKAGE (pA)
MAX4655/58 toc05
TEMPERATURE (°C)
0.1
1
100
10
1000
10,000
I
COM(0N)
I
COM(0FF)
V+ = +15V,
V- = -15V
-15
-5
-10
0
5
10
15
CHARGE INJECTION
vs. V
COM
MAX4655/58 toc06
V
COM
(V)
Q (pC)
-60
-30
30
0
60
90
A: V+ = +15V, V- = -15V
B: V+ = +12V, V- = 0V
A
B
0
50
150
100
200
250
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(SINGLE SUPPLY)
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
MAX4655/58 toc07
0
10
20
30
5
15
25
35
40
V- = 0
SUPPLY CURRENT
vs. SUPPLY VOLTAGE AND TEMPERATURE
MAX4657/58 toc08
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
0
20
10
40
30
50
60
0
±5
±10
±15
D
E
F
A: I+, T
A
= -40°C
B: I+, T
A
= +25°C
C: I+, T
A
= +85°C
D: I-, T
A
= -40°C
E: I-, T
A
= +25°C
F: I-, T
A
= +85°C
A
B
C
DUAL SUPPLIES:
±15V, V
COM
= 3V,
I
SWITCH
= 100mA
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
MAX4655/58 toc09
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION (%)
0.001
0.01
0.1
1
1k
100
10k
100k
10
V+ = +15V
V- = -15V
5V
RMS
SIGNAL
600 SOURCE
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
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