_______________General Description
The MAX361/MAX362 are precision, quad, single-pole
single-throw (SPST) analog switches. The MAX361 has four
normally closed (NC) switches, and the MAX362 has four
normally open (NO) switches. Both parts offer low channel
on resistance (less than 85Ω), guaranteed to match within
3Ω between channels and to remain flat over the analog
signal range (∆9Ω max). Both parts also offer low leakage
(less than 500pA at +25°C and less than 4nA at +85°C) and
fast switching (turn-on time less than 250ns and turn-off time
less than 170ns).
The MAX361/MAX362 are fabricated with Maxim’s new
improved 44V silicon-gate process. Design improvements 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 capability.
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
Guidance and Control Systems
Heads-Up Displays
Test Equipment
Communications Systems
Battery-Operated Systems
PBX, PABX
____________________________Features
♦ Low On Resistance: < 45Ω Typical (85ΩMax)
♦ Guaranteed Matched On Resistance Between Channels: < 2 Ω
♦ Guaranteed Flat On Resistance over Analog Signal
Range: ∆9Ω Max
♦ Guaranteed Charge Injection: < 10pC
♦ Guaranteed Off-Channel Leakage: <4nA at +85°C
♦ ESD Guaranteed > 2000V per Method 3015.7
♦ Single-Supply Operation (+10V to +30V)
Bipolar-Supply Operation (±4.5V to ±20V)
♦ TTL-/CMOS-Logic Compatible
♦ Rail-to-Rail Analog Signal Handling Capability
______________Ordering Information
MAX361/MAX362
Precision, Quad, SPST Analog Switches
_______________________________________________________________________
Maxim Integrated Products
1
Call toll free 1-800-998-8800 for free samples or literature.
19-0180; Rev 0; 9/93
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
COM2
NO2
V+
V-
NO1
COM1
IN1
MAX362
N.C.
NO3
COM3
IN3
IN4
COM4
NO4
GND
DIP/SO
DIP/SO
MAX362
LOGIC SWITCH
0
1
OFF
ON
SWITCHES SHOWN FOR LOGIC "0" INPUT
MAX361
LOGIC SWITCH
0
1
ON
OFF
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
COM2
NC2
V+
V-
NC1
COM1
IN1
MAX361
N.C.
NC3
COM3
IN3
IN4
COM4
NC4
GND
TOP VIEW
N.C. = Not Internally
Connected
_____________________Pin Configurations/Functional Diagrams/Truth Tables
* Contact factory for dice specifications.
PART TEMP. RANGE PIN-PACKAGE
MAX361CPE
0°C to +70°C 16 Plastic DIP
MAX361CSE 0°C to +70°C 16 Narrow SO
MAX361C/D 0°C to +70°C Dice*
MAX361EPE -40°C to +85°C 16 Plastic DIP
MAX361ESE -40°C to +85°C 16 Narrow SO
MAX361EJE -40°C to +85°C 16 CERDIP
MAX361MJE -55°C to +125°C 16 CERDIP
MAX362CPE
0°C to +70°C 16 Plastic DIP
MAX362CSE 0°C to +70°C 16 Narrow SO
MAX362C/D 0°C to +70°C Dice*
MAX362EPE -40°C to +85°C 16 Plastic DIP
MAX362ESE -40°C to +85°C 16 Narrow SO
MAX362EJE -40°C to +85°C 16 CERDIP
MAX362MJE -55°C to +125°C 16 CERDIP
MAX361/MAX362
Precision, Quad, SPST Analog Switches
2 ________________________________________________________________________________________________
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, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS
MIN TYP MAX
UNITS
(Note 2)
ANALOG
V
COM_
,
Analog-Signal Range V
NO_
, (Note 3) -15 15 V
V
NC_
R
ON
TA= +25°C 50 85
Ω
TA= T
MIN
to T
MAX
100
On Resistance Match
R
ON
TA= +25°C 2
Ω
Between Channels (Note 4)
T
A
= T
MIN
to T
MAX
4
On Resistance Flatness
R
ON
TA= +25°C 9
Ω
(Note 4)
T
A
= T
MIN
to T
MAX
15
Off Leakage Current
I
NO
_
,
T
A
= +25°C -0.50 0.01 0.50
nA
(NO_ or NC_ terminal)
I
NC
_
TA= T
MAX
C, E -4 4
M -20 20
Off Leakage Current
TA= +25°C -0.50 0.01 0.50
nA
(COM_ terminal)
I
COM
TA= T
MAX
C, E -4 4
M -20 20
On Leakage Current
I
COM
TA= +25°C -0.50 0.08 0.50
nA
(COM_ and NC_ or NO_
or
T
A
= T
MAX
C, E -6 6
INO, I
NC
M -40 40
DIGITAL
Input Current with
I
INH
V
IN_
= 2.4V -500 0.01 500 nA
Input Voltage High
Input Current with
I
INH
V
IN_
= 0.8V -500 0.01 500 nA
Input Voltage Low
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V-
V+ ....................................................................................44V
GND.................................................................................25V
IN_, COM_, NO_, NC_...........(V- - 2V) to (V+ + 2V) or 30mA
(whichever occurs first)
Continuous Current (any terminal) .....................................30mA
Peak Current COM, NO, NC
(pulsed at 1ms, 10% duty cycle max)..........................100mA
ESD....................................................................................2000V
Continuous Power Dissipation (T
A
= +70°C) (Note 1)
Plastic DIP (derate 10.53mW/°C above +70°C)..........842mW
Narrow SO (derate 8.70mW/°C above +70°C)............696mW
CERDIP (derate 10.00mW/°C above +70°C)..............800mW
Operating Temperature Ranges:
MAX36_C_ _.......................................................0°C to +70°C
MAX36_E_ _....................................................-40°C to +85°C
MAX36_MJE..................................................-55°C to +125°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10sec) ............................+300°C
Note 1: All leads are soldered or welded to PC board.
I
(NO or NC)
= -10mA,
V
COM_
= 8.5V or -8.5V,
V+ = 13.5V, V- = -13.5V
On Resistance
(COM_ to NO_ or
COM_ to NC_ terminals)
I
(NO or NC)
= -10mA,
V
COM_
= 10V or -10V,
V+ = 15V, V- = -15V
I
(NO or NC)
= -10mA,
V
COM_
= 5V or -5V,
V+ = 15V, V- = -15V
V
COM_
= ±15.5V,
V
NC_
or V
NO_
= +15.5V,
V+ = 16.5V, V- = -16.5V
V
NC_
or V
NO_
= ±15.5V,
V
COM_
= +15.5V,
V+ = 16.5V, V- = -16.5V
V
COM_
= ±15.5V,
V
NC_
or V
NO_
= ±15.5V,
V+ = 16.5V, V- = -16.5V
terminal)
MAX361/MAX362
_______________________________________________________________________________________ 3
MAX361/MAX362
Precision, Quad, SPST Analog Switches
_________________________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = 15V, V- = -15V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS
MIN TYP MAX
UNITS
(Note 2)
SUPPLY
Power-Supply Range V+, V- ±4.5 ±20.0 V
All channels on or off, V
IN
= 0V or 5V,
Positive Supply Current I+
V+ = 16.5V, V- = -16.5V
15 100 µA
Negative Supply Current I-
T
A
= +25°C -1 -0.0001 1
µA
TA= T
MIN
to T
MAX
-5 5
All channels on or off, V
IN
= 0V or 5V,
Ground Current I
GND
V+ = 16.5V, V- = -16.5V
-100 -15 µA
DYNAMIC
Turn-On Time t
ON
Figure 1, VS= ±10V, RL= 1kΩ TA= +25°C 150 250 ns
Turn-Off Time t
OFF
MAX361, Figure 1, V
COM
= ±10V TA= +25°C 90 120 ns
MAX362, Figure 1, V
COM
= ±10V TA= +25°C 110 170 ns
Charge Injection Q
C
L
= 1nF, V
GEN
= 0V,
T
A
= +25°C 5 10 pC
R
GEN
= 0Ω, Figure 2
Off Isolation (Note 5) OIRR
R
L
= 50Ω, CL= 5pF,
T
A
= +25°C 60 dB
f = 1MHz, Figure 3
Crosstalk (Note 6)
R
L
= 50Ω, CL= 5pF,
T
A
= +25°C -100 dB
f = 1MHz, Figure 4
Off Capacitance NC or NO C
(OFF)
f = 1MHz, Figure 5 TA= +25°C 4 pF
Off Capacitance COM_ C
COM(OFF)
f = 1MHz, Figure 5 TA= +25°C 4 pF
C
COM(ON)
Channel-On Capacitance f = 1MHz, Figure 5 TA= +25°C 16 pF
All channels on or off,
V
IN
= 0V or 5V,
V+ = 16.5V, V- = -16.5V
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = 12V, V- = 0V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS
MIN TYP MAX
UNITS
(Note 2)
SWITCH
V
COM_
,
Analog-Signal Range V
NO_
, (Note 3) 0 12 V
V
NC_
R
ON
TA= +25°C 100 160
Ω
TA= T
MIN
to T
MAX
200
SUPPLY
Power-Supply Range V+ 10 30 V
Positive Supply Current I+ 15 100 µA
Negative Supply Current I-
T
A
= +25°C -1 -0.0001 1 µA
T
A
= T
MIN
to T
MAX
-5 +5
µA
Ground Current I
GND
-100 -15
DYNAMIC
Turn-On Time t
ON
Figure 1, VS= 8V TA= +25°C 300 400 ns
Turn-Off Time t
OFF
Figure 1, VS= 8V TA= +25°C 60 200 ns
Charge Injection Q
CL= 1nF, V
GEN
= 0V,
T
A
= +25°C 5 10 pC
MAX361/MAX362
Precision, Quad, SPST Analog Switches
4 _______________________________________________________________________________________
I
(NC or NO)
= 1.0mA,
V
COM__
= 3V, 8V,
V+ = 10.8V
On Resistance
(COM_ to NO_ or
COM_ to NC_ terminals)
All channels on or off,
V
IN
= 0V or 5V
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: On resistance match between channels and flatness are guaranteed only with bipolar-supply operation.
Note 5: See Figure 3. Off Isolation = 20 log
10
, V
COM
= output, V
NC or NO
= input to off switch.
Note 6: Between any two switches. See Figure 4.
V
COM
VNC_ or V
NO_
All channels on or off, VIN= 0V or 5V
All channels on or off, VIN= 0V or 5V
MAX361/MAX362
Precision, Quad, SPST Analog Switches
_______________________________________________________________________________________
5
ON LEAKAGE CURRENTS
I
NC_
, I
NO_
, I
COM
(nA)
-2
-1
0
1
2
3
4
-15 0 15
VNC, VNO ,V
COM
(V)
TA = +125°C
TA = +85°C
V+ = 15V
V- = -15V
OFF LEAKAGE CURRENTS
I
NC_
, I
NO_
, I
COM
(nA)
-1
0
2
1
-15 0 15
VNC, VNO, V
COM
(V)
TA = +85°C
TA = +125°C
V+ = 15V
V- = -15V
SWITCHING THRESHOLD vs.
BIPOLAR SUPPLY VOLTAGE
V
IN
(V)
0
0.5
1.5
2.0
2.5
3.0
3.5
±5 ±10 ±15 ±20
BIPOLAR SUPPLY VOLTAGE (V)
MAX
MIN
ON RESISTANCE vs. V
COM
AND
UNIPOLAR SUPPLY VOLTAGE
0
25
50
75
100
125
150
175
200
225
250
0 5 10 15 20
V
COM
(V)
R
ON
(Ω)
V+ = 10V
V+ = 15V
V+ = 20V
ON RESISTANCE vs. V
COM
AND UNIPOLAR
SUPPLY VOLTAGE AND TEMPERATURE
0
25
50
75
100
125
150
R
ON
(Ω)
04812
V
COM
(V)
TA = +125°C
TA = +25°C
TA = -55°C
V+ = 12V
V- = 0V
ON RESISTANCE vs. V
COM
AND
BIPOLAR SUPPLY VOLTAGE
R
ON
(Ω)
30
60
90
120
150
180
-20 -10 0 +10 +20
V
COM
(V)
±5V
±10V
±15V
±20V
0
ON RESISTANCE vs. V
COM
AND
BIPOLAR VOLTAGE AND TEMPERATURE
R
ON
(Ω)
0
20
40
60
80
100
120
-14 -7 0 7 14
V
COM
(V)
TA = +125°C
TA = -55°C
TA = +25°C
V+ = 15V, V- = -15V
SWITCHING TIME vs. BIPOLAR
SUPPLY VOLTAGE
TIME (ns)
0
40
80
120
160
200
240
±5 ±10 ±15 ±20
BIPOLAR SUPPLY VOLTAGE (V)
t
ON
t
OFF
SWITCHING TIMES vs. UNIPOLAR
SUPPLY VOLTAGE
TIME (ns)
0
50
100
150
200
250
300
350
10 15 20 24
UNIPOLAR SUPPLY VOLTAGE (V)
V- = 0V
t
ON
t
OFF
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
MAX361/MAX362
Precision, Quad, SPST Analog Switches
6 _______________________________________________________________________________________
____________________________Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
CHARGE INJECTION vs.
V
COM
VOLTAGE
Q (pC)
-20
0
20
40
-14 -10 0 10 14
V
COM
(V)
V+ = 15V
V- = -15V
CL = 1nF
CHARGE INJECTION vs.
V
COM
VOLTAGE
Q (pC)
-10
0
10
0 5 10 12
V
COM
(V)
V+ = 12V
V- = 0V
CL = 1nF
___________Applications Information
Operation with Supply Voltages
Other Than ±15V
O
Using supply voltages other than ±15V is reduces the
analog signal range. The MAX361/MAX362 switches
operate with bipolar supplies of ±4.5V to ±20V. Typical
operating characteristic graphs show typical on resistance for ±15V, ±10V, and ±5V supplies. Switching
times increase by a factor of two or more for ±5V operation. The MAX361/MAX362 can also operate from
+10V to +30V unipolar supplies. Both parts can also
be powered from unbalanced supplies such as +24V
and -5V. Connect V- to 0V when operating with a single supply.
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maximum ratings, because stresses beyond the listed ratings may cause permanent damage to the devices.
Always sequence V+ on first, followed by V-, and logic
inputs. If power-supply sequencing is not possible,
add two small signal diodes in series with the supply
pins for overvoltage protection (Figure 6). Adding the
diodes reduces the analog signal range to 1V below
V+ and 1V below V-, but low switch resistance and low
leakage characteristics are unaffected. Device operation is unchanged, and the difference from V+ to Vshould not exceed +44V.
PIN
NAME
MAX361 MAX362
FUNCTION
1, 16, 9, 8 IN1-IN4 IN1-IN4 Logic-level input
2, 15, 10, 7 COM1-COM4 COM1-COM4 Analog switch common terminal
3, 14, 11, 6 NC1-NC4 NO1-NO4
NC (normally closed, MAX361)
NO (normally open, MAX362)
Analog switch terminal
4 V- V- Negative supply voltage input
5 GND GND Ground
12 N.C. N.C. Not internally connected
13 V+ V+ Positive supply voltage input—connected to substrate.
______________________________________________________________Pin Description
MAX361/MAX362
Precision, Quad, SPST Analog Switches
_______________________________________________________________________________________ 7
t
OFF
0.8V
O
V
O
0.8V
O
t
f
< 20ns
t
r
< 20ns
50%
0V
V
COM
0V
+3V
SWITCH
INPUT
SWITCH
OUTPUT
LOGIC INPUT WAVEFORM IS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
t
ON
SWITCH
INPUT
LOGIC
INPUT
+3V
1N_
COM_
+15V
V+
V-
-15V
R
L
35pF
V
O
NO_ OR NC_
FOR LOAD CONDITIONS, SEE SPECIFICATIONS
CL (INCLUDES FIXTURE AND STRAY CAPACITANCE)
GND
REPEAT TEST FOR CHANNELS 2, 3, AND 4.
VO = V
COM
RL
R
L
+ R
ON
LOGIC
INPUT
V
COM
∆V
O
OFFONOFF
V
O
IN_
MAX361
IN_
MAX362
OFF OFFON
Q = ∆VO × C
L
-15V
V-
V+
IN_GND
COM_
+15V
R
GEN
V
GEN
VIN = +3V
C
L
V
O
NO_
OR NC_
ANALYZER
SIGNAL
GENERATOR
R
GEN
= 50Ω
0.8V, 2.4V
NC1 OR NO1
IN1
COM2
GND
R
L
10dBm
C
V+
+15V
COM1
IN2
NC2 OR NO2
0.8V, 2.4V
50Ω
V-
-15V
C
ANALYZER
SIGNAL
GENERATOR
R
GEN
= 50Ω
NC_ OR
NO_
COM
GND
R
L
10dBm
C
V+
+15V
IN_
0.8V, 2.4V
V-
-15V
C
Figure 1. Switching-Time Test Circuit
Figure 2. Charge-Injection Test Circuit
Figure 3. Crosstalk Test Circuit (repeat for channels 3 and 4)
Figure 4. Off-Isolation Test Circuit
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8
___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 1993 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
MAX361/MAX362
Precision, Quad, SPST Analog Switches
METER
IMPEDANCE
ANALYZER OR
EQUIVALENT
COM_
NO_
OR
NC_
GND
C
V+
+15V
IN_
0.8V, 2.4V
V-
-15V
C
+V
f = 1MHz
V+
NC_ OR NO_
V-
COM_
V
g
___________________Chip Topography
COM3
COM4
0.091"
(2.31mm)
0.071"
(1.80mm)
V-
GND
NO4
IN3
IN4
NO3
N.C.
NO2
V+
COM1
IN1
IN2
COM2
NO1
Figure 5. Channel Capacitance Test Circuit Figure 6. Overvoltage Protection Using Blocking Diodes
TRANSISTOR COUNT: 126;
SUBSTRATE CONNECTED TO V+.
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