19-0212; Rev 2; 9/01
Precision, Quad, SPST Analog Switches
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 35Ω), guaranteed to match within 2Ω
between channels and to remain flat over the analog signal
range (∆3Ω max). They also offer low leakage (less than
250pA at +25°C and less than 6nA at +85°C) 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 (35µW), 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.
____________________________Features
o
Low On Resistance < 22Ω Typical (35Ω Max)
o
Guaranteed Matched On Resistance Between
Channels < 2Ω
o
Guaranteed Flat On Resistance Over Analog
Signal Range
∆3Ω
Max
o
Guaranteed Charge Injection < 10pC
o
Guaranteed Off-Channel Leakage < 6nA at +85°C
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
MAX351/MAX352/MAX353
Ordering Information
PART
MAX351CPE
MAX351CSE
MAX351C/D
MAX351EGE
MAX351EPE
MAX351ESE
MAX351EJE
MAX351MJE
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
-40°C to +85°C
-55°C to +125°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
16 QFN
16 Plastic DIP
16 Narrow SO
16 CERDIP
16 CERDIP
________________________Applications
Sample-and-Hold Circuits
Heads-Up Displays
Test Equipment
Military Radios
Battery-Operated Systems
PBX, PABX
Guidance and Control Systems Communications Systems
Ordering Information continued at end of data sheet.
*Contact
factory for availability and processing to MIL-STD-883.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
IN1
1
COM1
2
NC1
3
V-
4
GND
5
NC4
6
COM4
7
IN4
8
DIP/SO
16
IN2
15
COM2
14
NC2
13
V+
IN1
1
COM1
2
NO1
3
V-
4
GND
5
NO4
6
COM4
7
IN4
8
DIP/SO
MAX352
16
IN2
15
COM2
14
NO2
13
V+
12
VL
11
NO3
10
COM3
9
IN1
1
COM1
2
NO1
3
V-
4
GND
5
NO4
6
COM4
7
IN4
8
DIP/SO
LOGIC
0
1
MAX353
SWITCHES
1, 4
OFF
ON
16
IN2
15
COM2
14
NC2
13
V+
MAX351
12
VL
11
NC3
10
COM3
9
MAX353
12
VL
11
NC3
10
COM3
9
IN3
IN3
IN3
MAX351
LOGIC
SWITCH
0
1
ON
OFF
MAX352
LOGIC
SWITCH
0
1
OFF
ON
SWITCHES
2, 3
ON
OFF
Pin Configuration continued at end of data sheet.
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________
Maxim Integrated Products
1
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.
Precision, Quad, SPST Analog Switches
MAX351/MAX352/MAX353
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
= +70°C) (Note 2)
Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW
Narrow SO (derate 8.70mW/°C above +70°C) ............696mW
QFN (derate 19.2mW/°C above +70°C) ....................1538mW
CERDIP (derate 10.00mW/°C above +70°C) ...............800mW
Operating Temperature Ranges:
MAX35_C_ _ .......................................................0°C to +70°C
MAX35_E_ _.....................................................-40°C to +85°C
MAX35_MJE ..................................................-55°C to +125°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
maximum current rating.
Note 2:
All leads are soldered or welded to PC board.
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, VL = 5V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
SWITCH
Analog Signal Range
V
COM_
,
V
NO_
,
V
NC_
(Notes 1, 4)
I
COM
= -10mA,
V
NO_
or V
NC_
= ±8.5V,
V+ = 13.5V,
V- = -13.5V
T
A
=
+25°C
C, E
M
V-
17
17
V+
35
30
45
2
Ω
4
3
Ω
5
-0.25
-6
-20
-0.25
-6
-20
-0.4
-10
-40
-0.1
-0.10
-0.10
0.25
6
20
0.25
6
20
0.4
10
40
nA
nA
nA
Ω
V
SYMBOL
CONDITIONS
MIN
TYP
(Note 3)
MAX
UNITS
On Resistance
R
ON
T
A
= T
MIN
to T
MAX
On Resistance Match Between
Channels (Note 5)
R
ON
I
COM
= -10mA,
T
A
= +25°C
V
NO_
or V
NC_
= ±10V,
T
A
= T
MIN
to T
MAX
V+ = 15V, V- = - 15V
I
COM
= -10mA,
V
NO_
or V
NC_
= ±5V,
V+ = 15V, V- = - 15V
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
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
C, E
to T
MAX
M
T
A
= +25°C
T
A
= T
MIN
C, E
to T
MAX
M
On Resistance Flatness (Note 5)
R
ON
Off Leakage Current
(NO_ or NC_)
I
NO
I
NC
COM_ Off Leakage Current
I
NC(OFF)
COM_ On Leakage Current
I
COM(ON)
V
COM
= ±15.5V,
T
A
= +25°C
V
NO_
or V
NC_
= ±15.5V,
V+ = 16.5V,
T
A
= T
MIN
C, E
V- = -16.5V
to T
MAX
M
2
_______________________________________________________________________________________
Precision, Quad, SPST Analog Switches
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.)
PARAMETER
INPUT
Input Current with Input Voltage
High
Input Current with Input Voltage
Low
SUPPLY
Power-Supply Range
Positive Supply Current
I+
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
All channels on or off,
V
IN
= 0V or 5V,
V+ = 16.5V
V- = -16.5V
Figure 2,
V
COM
= ±10V
Figure 2,
V
COM
= ±10V
MAX353 only, Figure 3,
R
L
= 300Ω,
C
L
= 35pF
C
L
= 1.0nF,
V
GEN
= 0V,
R
GEN
= 0Ω, 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
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
±4.5
-1
-5
-1
-5
-1
-5
-1
-5
-0.0001
0.0001
-0.0001
0.0001
±20.0
1
µA
5
1
µA
5
1
µA
5
1
µA
5
V
I
INH
I
INL
IN_ = 2.4V, all others = 0.8V
IN_ = 0.8V, all others = 2.4V
-0.500
-0.500
0.005
0.005
0.500
0.500
µA
µA
SYMBOL
CONDITIONS
MIN
TYP
(Note 3)
MAX
UNITS
MAX351/MAX352/MAX353
Negative Supply Current
I-
Logic Supply Current
I
L
Ground Current
DYNAMIC
Turn-On Time
Turn-Off Time
I
GND
t
ON
t
OFF
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
110
100
175
220
145
160
ns
ns
Break-Before-Make Time Delay
t
D
25
ns
Charge Injection
Q
T
A
= +25°C
5
10
pC
Off Isolation (Note 6)
OIRR
T
A
= +25°C
68
dB
Crosstalk (Note 7)
NC or NO Capacitance
COM Off Capacitance
On Capacitance
C
(OFF)
C
(COM)
C
(COM)
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
85
9
9
35
dB
pF
pF
pF
3
_______________________________________________________________________________________
Precision, Quad, SPST Analog Switches
MAX351/MAX352/MAX353
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.)
PARAMETER
SWITCH
Analog Signal Range
V
COM_,
V
NO_,
V
NC
R
ON
(Notes 1, 4)
I
COM
= -10mA,
V
NC_
or V
NO_
= 3.8V,
V+ = 10.8V
T
A
= +25°C
T
A
= T
MIN
to T
MAX
0
40
V+
80
100
V
SYMBOL
CONDITIONS
MIN
TYP
(Note 3)
MAX
UNITS
Channel On Resistance
SUPPLY
Positive Supply Current
Ω
I+
V+ = 13.2V,
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
VL = 5.25V,
all channels on or off,
V
IN
= 0V or 5V
T
A
= +25°C
T
A
= T
MAX
T
A
= +25°C
T
A
= T
MAX
T
A
= +25°C
T
A
= T
MAX
T
A
= +25°C
T
A
= T
MAX
-1
-5
-1
-5
-1
-5
-1
-5
0.0001
1
µA
5
0.0001
1
µA
5
Negative Supply Current
I-
0.0001
1
µA
5
Logic Supply Current
I
L
-0.0001
1
µA
5
Ground Current
DYNAMIC
Turn-On Time
Turn-Off Time
I
GND
t
ON
t
OFF
Figure 2,
V
NO_
or V
NC_
= 8V
Figure 2,
V
NO_
or V
NC_
= 8V
MAX353 only, Figure 3,
R
L
= 300Ω,
C
L
= 35pF
Figure 8,
C
L
= 1.0nF,
V
GEN
= 0V,
R
GEN
= 0V
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
175
95
250
315
125
140
ns
ns
Break-Before-Make Time Delay
t
D
25
ns
Charge Injection
Q
T
A
= +25°C
5
10
pC
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in
this data sheet.
Guaranteed by design.
∆R
ON
=
∆R
ON
max -
∆R
ON
min. On-resistance match between channels and flatness are guaranteed only with
bipolar-supply operation.
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.
Between any two switches. See Figure 6.
4
_______________________________________________________________________________________
Precision, Quad, SPST Analog Switches
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
MAX351/MAX352/MAX353
ON RESISTANCE vs. V
COM
AND
POWER-SUPPLY VOLTAGE
MAX351-01
ON RESISTANCE vs. V
COM
AND
TEMPERATURE
MAX351-02
ON RESISTANCE vs. V
COM
AND
TEMPERATURE
V- = 0V
140
120
V+ = 5V
R
ON
(Ω)
100
80
V+ = 10V
60
MAX351-03
70
60
50
R
ON
(Ω)
40
30
20
10
0
R
ON
(Ω)
A: V+ = 5V,
V- = -5V
B: V+ = 10V,
V- = -10V
C: V+ = 15V,
V- = -15V
D: V+ = 20V,
V- = -20V
60
50
40
V+ = 15V
V- = -15V
T
A
= +125°C
T
A
= +85°C
160
A
B
C
D
30
20
10
0
T
A
= +25°C
T
A
= -55°C
-20
-10
0
V
COM
(V)
10
20
V+ = 15V
40
20
0
5
10
V
COM
(V)
15
20
V+ = 20V
-20
-10
0
V
COM
(V)
10
20
ON RESISTANCE vs. V
COM
(SINGLE-SUPPLY)
MAX351-04
OFF LEAKAGE CURRENTS vs.
TEMPERATURE
MAX351-05
ON LEAKAGE CURRENTS vs.
TEMPERATURE
V+ = 16.5V
V- = -16.5V
V
COM
= ±15V
V
NC
OR V
NO
= ±15V
MAX351-06
80
70
60
R
ON
(Ω)
50
40
30
20
0
5
10
V
COM
(V)
15
V+ = 12V
V- = 0V
T
A
= +125°C
100
10
OFF LEAKAGE (nA)
1
0.1
0.01
V+ = 16.5V
V- = -16.5V
V
COM
= ±15V
V
NC
OR V
NO
=
+15V
100
10
ON LEAKAGE (nA)
1
0.1
0.01
T
A
= +85°C
T
A
= +25°C
0.001
0.0001
20
0.001
0.0001
-55
+25
TEMPERATURE (°C)
+125
-55
+25
TEMPERATURE (°C)
+125
CHARGE INJECTION vs.
ANALOG VOLTAGE
MAX351-07
SUPPLY CURRENT vs. TEMPERATURE
A: I+ at V+ = 16.5V
B: I- at V- = -16.5V
C: I
L
at VL = 5V
A
B
C
0.01
0.001
0.0001
MAX351-08
60
40
20
Q (pC)
0
-20
-40
-60
-20 -15 -10
-5
0
V
COM
(V)
5
10
15
V+ = 15V
V- = -15V
VL = 5V
CL = 1nF
V
NC
100
10
1
0.1
20
I+, I-, I
L
(µA)
-55
+25
TEMPERATURE (°C)
+125
_______________________________________________________________________________________
5
京公网安备 11010802033920号
EEWORLD
