_______________General Description
The MAX351/MAX352/MAX353 are precision, quad,
single-pole single-throw (SPST) analog switches. The
MAX351 has four normally closed (NC), and the MAX352
has four normally open (NO) switches. The MAX353 has
two NO and two NC switches. All three parts offer low on
resistance (less than 35
), guaranteed to match within 2
between channels and to remain flat over the analog signal
range (
3
max). They also offer low leakage (less than
250pA at +25C and less than 6nA at +85C) and fast
switching (turn-on time less than 175ns and turn-off time
less than 145ns).
The MAX351/MAX352/MAX353 are fabricated with Maxim's
new improved 44V silicon-gate process. Design improve-
ments guarantee extremely low charge injection (10pC), low
power consumption (35W), and electrostatic discharge
(ESD) greater than 2000V. The 44V maximum breakdown
voltage allows rail-to-rail analog signal handling.
These monolithic switches operate with a single positive
supply (+10V to +30V) or with split supplies (4.5V to 20V)
while retaining CMOS-logic input compatibility and fast
switching. CMOS inputs provide reduced input loading.
________________________Applications
Sample-and-Hold Circuits
Military Radios
Guidance and Control Systems Communications Systems
Heads-Up Displays
Battery-Operated Systems
Test Equipment
PBX, PABX
____________________________Features
o
Low On Resistance < 22
Typical (35
Max)
o
Guaranteed Matched On Resistance Between
Channels < 2
o
Guaranteed Flat On Resistance Over Analog
Signal Range
3
Max
o
Guaranteed Charge Injection < 10pC
o
Guaranteed Off-Channel Leakage < 6nA at +85C
o
ESD Guaranteed > 2000V per Method 3015.7
o
Single-Supply Operation (+10V to +30V)
Bipolar-Supply Operation (4.5V to 20V)
o
TTL-/CMOS-Logic Compatibility
o
Rail-to-Rail Analog Signal Handling Capability
______________Ordering Information
MAX351/MAX352/MAX353
Precision, Quad, SPST Analog Switches
________________________________________________________________
Maxim Integrated Products
1
SWITCHES SHOWN FOR LOGIC "0" INPUT
DIP/SO
MAX352
LOGIC
SWITCH
0
1
OFF
ON
TOP VIEW
DIP/SO
MAX351
LOGIC
SWITCH
0
1
ON
OFF
DIP/SO
MAX353
LOGIC
SWITCHES
1, 4
0
1
OFF
ON
SWITCHES
2, 3
ON
OFF
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
COM2
NC2
V+
V-
NO1
COM1
IN1
MAX353
VL
NC3
COM3
IN3
IN4
COM4
NO4
GND
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
COM2
NC2
V+
V-
NC1
COM1
IN1
MAX351
VL
NC3
COM3
IN3
IN4
COM4
NC4
GND
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
COM2
NO2
V+
V-
NO1
COM1
IN1
MAX352
VL
NO3
COM3
IN3
IN4
COM4
NO4
GND
_____________________Pin Configurations/Functional Diagrams/Truth Tables
Call toll free 1-800-998-8800 for free samples or literature.
19-0212; Rev 1; 4/94
PART
TEMP. RANGE
PIN-PACKAGE
MAX351
CPE
0C to +70C
16 Plastic DIP
MAX351CSE
0C to +70C
16 Narrow SO
MAX351C/D
0C to +70C
Dice*
Ordering Information continued on last page.
* Contact factory for availability and processing to MIL-STD-883.
MAX351EPE
-40C to +85C
16 Plastic DIP
MAX351ESE
-40C to +85C
16 Narrow SO
MAX351EJE
-40C to +85C
16 CERDIP
MAX351MJE
-55C to +125C
16 CERDIP
MAX351/MAX352/MAX353
Precision, Quad, SPST Analog Switches
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V-
V+.......................................................................................44V
GND ...................................................................................25V
VL ................................................(GND - 0.3V) to (V+ + 0.3V)
Digital Inputs, V
COM
, V
NC
, V
NO
(Note 1) ...........(V- - 2V) to (V+ + 2V)
.........................................................or 30mA (whichever occurs first)
Current (any terminal) .........................................................30mA
Peak Current COM_, NO_, NC_
(pulsed at 1ms, 10% duty cycle max) ..........................100mA
ESD per Method 3015.7 ..................................................>2000V
Continuous Power Dissipation (T
A
= +70C) (Note 2)
Plastic DIP (derate 10.53mW/C above +70C) ..........842mW
Narrow SO (derate 8.70mW/C above +70C) ............696mW
CERDIP (derate 10.00mW/C above +70C) ...............800mW
Operating Temperature Ranges:
MAX35_C_ _ .......................................................0C to +70C
MAX35_E_ _.....................................................-40C to +85C
MAX35_MJE ..................................................-55C to +125C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10sec) .............................+300C
ELECTRICAL CHARACTERISTICS--Dual Supplies
(V+ = 15V, V- = -15V, VL = 5V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
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.
Note 1:
Signals on NC_, NO_, COM_, or IN_ exceeding V+ or V- will be clamped by internal diodes. Limit forward diode current to
maximum current rating.
Note 2:
All leads are soldered or welded to PC board.
17
30
M
C, E
-40
40
-20
20
-20
20
-0.25
-0.10
0.25
5
4
M
M
M
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
C, E
C, E
C, E
T
A
= T
MIN
to T
MAX
T
A
=
+25C
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= +25C
T
A
= +25C
V
COM
= 15.5V,
V
NO_
or V
NC_
= 15.5V,
V+ = 16.5V,
V- = -16.5V
V
COM
= -15.5V,
V
NO_
or V
NC_
= 15.5V,
V+ = 16.5V,
V- = -16.5V
(Notes 1, 4)
V
COM
= -15.5V,
V
NO_
or V
NC_
= 15.5V,
V+ = 16.5V,
V- = -16.5V
I
COM
= -10mA,
V
NO_
or V
NC_
= 10V,
V+ = 15V, V- = - 15V
I
COM
= -10mA,
V
NO_
or V
NC_
= 8.5V,
V+ = 13.5V,
V- = -13.5V
I
COM
= -10mA,
V
NO_
or V
NC_
= 5V,
V+ = 15V, V- = - 15V
CONDITIONS
nA
-10
10
I
COM(ON)
COM_ On Leakage Current
-0.4
-0.1
0.4
I
NC(OFF)
nA
-6
6
COM_ Off Leakage Current
-6
6
nA
I
NO
I
NC
Off Leakage Current
(NO_ or NC_)
-0.25
-0.10
0.25
3
R
ON
On Resistance Flatness (Note 5)
V
V-
V+
V
COM_
,
V
NO_
,
V
NC_
Analog Signal Range
R
ON
On Resistance Match Between
Channels (Note 5)
2
17
35
45
R
ON
On Resistance
UNITS
MIN
TYP
MAX
(Note 3)
SYMBOL
PARAMETER
SWITCH
MAX351/MAX352/MAX353
Precision, Quad, SPST Analog Switches
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS--Dual Supplies (continued)
(V+ = 15V, V- = -15V, VL = 5V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
ns
ns
-5
5
T
A
= T
MIN
to T
MAX
-5
5
T
A
= T
MIN
to T
MAX
T
A
= +25C
-5
5
T
A
= T
MIN
to T
MAX
-5
5
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= +25C
T
A
= +25C
CONDITIONS
T
A
= +25C
-1
-0.0001
1
All channels on or off,
V
IN
= 0V or 5V,
V+ = 16.5V
V- = -16.5V
All channels on or off,
V
IN
= 0V or 5V,
V+ = 16.5V
V- = -16.5V
All channels on or off,
V
IN
= 0V or 5V,
V+ = 16.5V
V- = -16.5V
pF
35
f = 1MHz, Figure 8
C
(COM)
On Capacitance
pF
9
f = 1MHz, Figure 7
C
(COM)
COM Off Capacitance
pF
9
f = 1MHz, Figure 7
C
(OFF)
NC or NO Capacitance
dB
85
R
L
= 50
,
C
L
= 5pF,
f = 1MHz, Figure 6
Crosstalk (Note 7)
dB
68
R
L
= 50
,
C
L
= 5pF,
f = 1MHz, Figure 5
OIRR
Off Isolation (Note 6)
pC
5
10
C
L
= 1.0nF,
V
GEN
= 0V,
R
GEN
= 0
, Figure 4
Q
Charge Injection
ns
25
MAX353 only, Figure 3,
R
L
= 300
,
C
L
= 35pF
t
D
Break-Before-Make Time Delay
Figure 2,
V
COM
= 10V
Figure 2,
V
COM
= 10V
160
t
OFF
Turn-Off Time
100
145
220
t
ON
Turn-On Time
A
-0.500
0.005
0.500
I
INH
110
175
Input Current with Input Voltage
High
-1
-0.0001
1
A
I
GND
Ground Current
A
-1
0.0001
1
I
L
Logic Supply Current
A
-1
0.0001
1
I+
Positive Supply Current
A
A
-0.500
0.005
0.500
I
INL
Input Current with Input Voltage
Low
All channels on or off,
V
IN
= 0V or 5V,
V+ = 16.5V
V- = -16.5V
V
I-
Negative Supply Current
4.5
20.0
Power-Supply Range
UNITS
MIN
TYP
MAX
(Note 3)
SYMBOL
PARAMETER
IN_ = 2.4V, all others = 0.8V
IN_ = 0.8V, all others = 2.4V
INPUT
SUPPLY
DYNAMIC
MAX351/MAX352/MAX353
Precision, Quad, SPST Analog Switches
4
_______________________________________________________________________________________
PARAMETER
SYMBOL
MIN
TYP
MAX
(Note 3)
UNITS
Channel On Resistance
R
ON
100
Logic Supply Current
Positive Supply Current
I+
-1
0.0001
1
A
I
L
-1
0.0001
1
A
Negative Supply Current
I-
-1
0.0001
1
A
Ground Current
Analog Signal Range
I
GND
-1
-0.0001
1
A
Turn-On Time
V
COM_,
V
NO_,
V
NC
0
V+
V
175
250
ns
t
ON
95
125
40
80
Turn-Off Time
t
OFF
140
ns
I
COM
= -10mA,
V
NC_
or V
NO_
= 3.8V,
V+ = 10.8V
V+ = 13.2V,
all channels on or off,
V
IN
= 0V or 5V
VL = 5.25V,
all channels on or off,
V
IN
= 0V or 5V
V+ = 13.2V,
all channels on or off,
V
IN
= 0V or 5V
VL = 5.25V,
all channels on or off,
V
IN
= 0V or 5V
Figure 2,
V
NO_
or V
NC_
= 8V
Figure 2,
V
NO_
or V
NC_
= 8V
ELECTRICAL CHARACTERISTICS--Single Supply
(V+ = 12V, V- = 0V, VL = 5V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
Break-Before-Make Time Delay
t
D
MAX353 only, Figure 3,
R
L
= 300
,
C
L
= 35pF
25
ns
Charge Injection
Q
Figure 8,
C
L
= 1.0nF,
V
GEN
= 0V,
R
GEN
= 0V
5
10
pC
CONDITIONS
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= +25C
T
A
= +25C
(Notes 1, 4)
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= +25C
T
A
= T
MAX
-5
5
T
A
= T
MIN
to T
MAX
315
T
A
= T
MAX
-5
5
T
A
= T
MAX
-5
5
T
A
= T
MAX
T
A
= +25C
-5
5
Note 3:
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 4:
Guaranteed by design.
Note 5:
R
ON
=
R
ON
max -
R
ON
min. On-resistance match between channels and flatness are guaranteed only with
bipolar-supply operation.
Note 6:
See Figure 5. Off Isolation = 20 log
10
[ V
COM
/ (V
NC or
V
NO)
], V
COM
= output, V
NC or
V
NO
= input to off switch.
Note 7:
Between any two switches. See Figure 6.
DYNAMIC
SUPPLY
SWITCH
MAX351/MAX352/MAX353
Precision, Quad, SPST Analog Switches
_______________________________________________________________________________________
5
60
-20
-10
10
ON RESISTANCE vs. V
COM
AND
POWER-SUPPLY VOLTAGE
0
40
MAX351-01
V
COM
(V)
R
ON
(
)
0
20
20
50
30
10
70
A
B
C
D
A: V+ = 5V,
V- = -5V
B: V+ = 10V,
V- = -10V
C: V+ = 15V,
V- = -15V
D: V+ = 20V,
V- = -20V
0
-20
-10
10
ON RESISTANCE vs. V
COM
AND
TEMPERATURE
50
MAX351-02
V
COM
(V)
R
ON
(
)
0
20
30
10
40
20
60
V+ = 15V
V- = -15V
T
A
= +125C
T
A
= +85C
T
A
= +25C
T
A
= -55C
20
0
5
15
ON RESISTANCE vs. V
COM
AND
TEMPERATURE
120
MAX351-03
V
COM
(V)
R
ON
(
)
10
20
80
40
100
60
140
V- = 0V
V+ = 5V
V+ = 10V
V+ = 15V
V+ = 20V
160
20
0
5
15
ON RESISTANCE vs. V
COM
(SINGLE-SUPPLY)
70
MAX351-04
V
COM
(V)
R
ON
(
)
10
20
50
30
60
40
80
V+ = 12V
V- = 0V
T
A
= +125C
T
A
= +85C
T
A
= +25C
-60
-20
CHARGE INJECTION vs.
ANALOG VOLTAGE
40
MAX351-07
V
COM
(V)
Q (pC)
0
20
0
-40
20
-20
60
-15 -10
-5
5
10
15
V+ = 15V
V- = -15V
VL = 5V
V
NC
CL = 1nF
0.0001
-55
OFF LEAKAGE CURRENTS vs.
TEMPERATURE
10
MAX351-05
TEMPERATURE (C)
OFF LEAKAGE (nA)
+25
+125
0.1
0.001
1
0.01
100
V+ = 16.5V
V- = -16.5V
V
COM
= 15V
V
NC
OR V
NO
=
+15V
0.0001
-55
ON LEAKAGE CURRENTS vs.
TEMPERATURE
10
MAX351-06
TEMPERATURE (C)
ON LEAKAGE (nA)
+25
+125
0.1
0.001
1
0.01
100
V+ = 16.5V
V- = -16.5V
V
COM
= 15V
V
NC
OR V
NO
= 15V
0.0001
-55
SUPPLY CURRENT vs. TEMPERATURE
10
MAX351-08
TEMPERATURE (C)
I+, I-, I
L
(
A)
+25
+125
0.1
0.001
1
0.01
100
A: I+ at V+ = 16.5V
B: I- at V- = -16.5V
C: I
L
at VL = 5V
A
B
C
__________________________________________Typical Operating Characteristics
(T
A
= +25C, unless otherwise noted.)
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