19-1714; Rev 0; 4/00
±15kV ESD-Protected, Low-Voltage,
SPDT/SPST, CMOS Analog Switches
General Description
The MAX4561/MAX4568/MAX4569 are low-voltage,
ESD-protected analog switches. The normally open
(NO) and normally closed (NC) inputs are protected
against ±15kV electrostatic discharge (ESD) without
latchup or damage, and the COM input is protected
against 2.5kV ESD.
These switches operate from a single +1.8V to +12V
supply. The 70Ω at 5V (120Ω at 3V) on-resistance is
matched between channels to 2Ω max, and is flat (4Ω
max) over the specified signal range. The switches can
handle Rail-to-Rail
®
analog signals. Off-leakage current
is only 0.5nA at +25°C and 5nA at +85°C. The digital
input has +0.8V to +2.4V logic thresholds, ensuring
TTL/CMOS-logic compatibility when using a single +5V
supply. The MAX4561 is a single-pole/double-throw
(SPDT) switch. The MAX4568 NO and MAX4569 NC are
single-pole/single-throw (SPST) switches.
The MAX4561 is available in a 6-pin SOT23 package,
and the MAX4568/MAX4569 are available in 5-pin
SOT23 packages.
Features
o
ESD-Protected NO, NC
±15kV—Human Body Model
±15kV—IEC 1000-4-2, Air-Gap Discharge
±8kV—IEC 1000-4-2, Contact Discharge
o
Guaranteed On-Resistance
70Ω +5V Supply
120Ω with Single +3V Supply
o
On-Resistance Match Between Channels (2Ω max)
o
Low On-Resistance Flatness: 4Ω max
o
Guaranteed Low Leakage Currents
0.5nA Off-Leakage (at T
A
= +25°C)
0.5nA On-Leakage (at T
A
= +25°C)
o
Guaranteed Break-Before-Make at 5ns
(MAX4561 only)
o
Rail-to-Rail Signal Handling Capability
o
TTL/CMOS-Logic Compatible with +5V Supplies
o
Industry Standard Pin-Outs
MAX4561 Pin Compatible with MAX4544
MAX4568/MAX4569 Pin Compatible with
MAX4514/MAX4515
MAX4561/MAX4568/MAX4569
________________________Applications
High-ESD Environments
Battery-Powered Systems
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Communications Circuits
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Ordering Information
PART
MAX4561EUT-T
-40°C to +85°C
MAX4568EUK-T
-40°C to +85°C
MAX4569EUK-T
-40°C to +85°C
TEMP.
RANGE
PIN-
PACKAGE
6 SOT23
5 SOT23
5 SOT23
SOT
TOP MARK
AAIE
ADOE
ADOF
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
IN
1
6
NO
COM
1
5
V+
COM
1
5
V+
V+
2
5
COM
NO
2
NC
2
GND
3
MAX4561
SOT23-6
4
NC
GND
3
MAX4568
SOT23-5
4
IN
GND
3
MAX4569
SOT23-5
4
IN
LOGIC
0
1
NO
OFF
ON
NC
ON
OFF
LOGIC
0
1
SWITCH
OFF
ON
LOGIC
0
1
SWITCH
ON
OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT.
________________________________________________________________
Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
±15kV ESD-Protected, Low-Voltage,
SPDT/SPST, CMOS Analog Switches
MAX4561/MAX4568/MAX4569
ABSOLUTE MAXIMUM RATINGS
V+ to GND ................................................................-0.3 to +13V
IN, COM, NO, NC to GND (Note 1) ..............-0.3V to (V+ + 0.3V)
Continuous Current (any terminal)....................................±10mA
Peak Current
(NO, NC, COM; pulsed at 1ms 10% duty cycle).........±30mA
ESD Protection per Method IEC 1000-4-2 (NO, NC)
Air-Gap Discharge ........................................................±15kV
Contact Discharge ..........................................................±8kV
ESD Protection per Method 3015.7
V+, GND, IN, COM.......................................................±2.5kV
NO, NC..........................................................................±15kV
Continuous Power Dissipation (T
A
= +70°C)
SOT23 (derate 8.7mW/°C above +70°C) ....................696mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1:
Signals on NO, NC, COM, or IN exceeding V+ or GND are clamped by internal diodes. Limit forward current to maximum
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—Single +5V Supply
(V+ = +4.5V to +5.5V, V
IH
= +2.4V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise specified. Typical values are at T
A
= +25°C.)
(Notes 2, 3)
PARAMETER
ANALOG SWITCH
Input Voltage Range
On-Resistance
On-Resistance Match
Between Channels
(Note 4)
On-Resistance Flatness
(Note 5)
Off-Leakage Current
(NO or NC)
COM Off-Leakage Current
(MAX4568/MAX4569 only)
V
COM
,
V
NO
, V
NC
R
ON
V+ = 4.5V, I
COM
= 1mA;
V
NO
or V
NC
= 1V, 3.5V
V+ = 4.5V, I
COM
=1mA;
V
NO
or V
NC
= 1V, 3.5V
V+ = 4.5V, I
COM
= 1mA;
V
NO
or V
NC
= 1V, 2.25V, 3.5V
V+ = 5.5V, V
COM
= 1V, 4.5V;
V
NO
or V
NC
= 4.5V, 1V
V+ = 5.5V, V
COM
= 1V, 4.5V;
V
NO
or V
NC
= 4.5V, 1V
V+ = 5.5V, V
COM
= 1V, 4.5V;
V
NO
or V
NC
= 1V, 4.5V or
floating
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
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-0.5
-5
-0.5
-5
-1
-10
0.01
0.01
2
0.5
0
45
V+
70
75
2
Ω
3
4
5
0.5
5
0.5
nA
5
1
nA
10
Ω
nA
V
Ω
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
∆R
ON
R
FLAT(ON)
I
NO(OFF)
,
I
NC(OFF)
I
COM(OFF)
COM On-Leakage Current
LOGIC INPUT
Input Logic High
Input Logic Low
Input Leakage Current
ICOM(ON)
V
IH
V
IL
I
IN
V
IN
= 0 or V+
2.4
0.8
-1
1
V
V
µA
2
_______________________________________________________________________________________
±15kV ESD-Protected, Low-Voltage,
SPDT/SPST, CMOS Analog Switches
MAX4561/MAX4568/MAX4569
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = +4.5V to +5.5V, V
IH
= +2.4V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise specified. Typical values are at T
A
= +25°C.)
(Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
V
NO
, V
NC
= 3V, R
L
= 300Ω,
C
L
= 35pF; Figure 1
V
NO
, V
NC
= 3V, R
L
= 300Ω,
C
L
= 35pF, Figure 1
V
NO
, V
NC
= 3V, R
L
=
300Ω, C
L
= 35pF, Figure 2
V
GEN
= 2V, C
L
= 1.0nF,
R
GEN
= 0; Figure 3
V
NO
= V
NC
= GND,
f = 1MHz, Figure 4
V
COM
= GND, f = 1MHz,
Figure 4
V
COM
= V
NO
, V
NC
= GND,
f = 1MHz, Figure 4
V
NO
= V
NC
= 1V
RMS
,
R
L
= 50Ω; C
L
= 5pF,
f = 1MHz; Figure 5
R
L
= 600Ω, 5Vp-p,
f = 20Hz to 20kHz
T
A
=
+25°C
MAX4561
MAX4568/9
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
5
50
17
6
20
40
MIN
TYP
90
MAX
150
180
80
100
UNITS
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make Delay
(MAX4561 only)
Charge Injection
NO or NC Off
Capacitance
COM Off-Capacitance
(MAX4568/MAX4569 only)
COM On-Capacitance
t
ON
t
OFF
t
BBM
Q
C
OFF
C
COM
C
COM
ns
ns
ns
pC
pF
T
A
= +25°C
T
A
= +25°C
T
A
=
+25°C
MAX4561
MAX4568/9
12
31
20
-75
pF
pF
Off-Isolation (Note 6)
V
ISO
T
A
= +25°C
dB
Total Harmonic Distortion
ESD SCR Holding Current
POWER SUPPLY
Power-Supply Range
Positive Supply Current
THD
I
H
T
A
= +25°C
T
A
= +25°C
T
A
= +85°C
1.8
0.01
110
70
12
0.05
1
10
%
mA
V+
I+
V+ = 5.5V, V
IN
= 0 or V+
T
A
= +25°C
T
A
= T
MIN
to T
MAX
V
µA
_______________________________________________________________________________________
3
±15kV ESD-Protected, Low-Voltage,
SPDT/SPST, CMOS Analog Switches
MAX4561/MAX4568/MAX4569
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +2.7V to +3.6V, V
IH
= +2.0V, V
IL
= +0.6V, T
A
= T
MIN
to T
MAX
, unless otherwise specified. Typical values are at T
A
= +25°C.)
(Notes 2, 3)
PARAMETER
ANALOG SWITCH
On-Resistance
LOGIC INPUT
Input Logic High
Input Logic Low
V
IH
V
IL
V
NO
or V
NC
= 1.5V, R
L
= 300Ω, T
A
= +25°C
C
L
= 35pF, Figure 1
T
A
= T
MIN
to T
MAX
V
NO
or V
NC
= 1.5V, R
L
= 300Ω, T
A
= +25°C
C
L
= 35pF, Figure 1
T
A
= T
MIN
to T
MAX
V
NO
or V
NC
= 3V, R
L
= 300Ω, T = +25°C
A
C
L
= 35pF, Figure 2
1.5
150
60
2.0
0.6
250
300
100
150
80
V
V
SYMBOL
CONDITIONS
I
COM
= 1mA, V
NO
or
V
NC
= 1.5V, V+ = 2.7V
T
A
= +25°C
T
A
= T
MIN
to T
MAX
MIN
TYP
75
MAX
120
150
UNITS
R
ON
Ω
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make Delay
(MAX4561 only)
t
ON
t
OFF
T
BBM
ns
ns
ns
Note 2:
The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is used
in this data sheet.
Note 3:
Parameters are 100% tested at +25°C and guaranteed by correlation at the full rated temperature.
Note 4:
∆R
ON
= R
ON(MAX)
- R
ON(MIN)
.
Note 5:
Flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 6:
Off-Isolation = 20log
10
(V
COM
/V
NO
), V
COM
= output, V
NO
= input to off switch.
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE
vs. V
COM
AND SUPPLY VOLTAGE
MAX4561/8/9-01
ON-RESISTANCE
vs. TEMPERATURE
V+ = 5V
MAX4561/8/9-02
LEAKAGE CURRENT
vs. TEMPERATURE
1600
LEAKAGE CURRENT (pA)
1400
1200
1000
800
ON
600
OFF
400
200
0
MAX4561/8/9 TOC3
250
60
50
40
30
20
10
0
1800
200
V+ = +1.8V
R
ON
(Ω)
150
V+ = +2.5V
V+ = +3.3V
V+ = +5V
50
R
DS(ON)
(Ω)
T
A
= +85°C
100
T
A
= +25°C
T
A
= -40°C
V+ = +12V
V+ = +9V
0
0
4
VCOM (V)
8
12
0
1
2
3
4
5
-40
-20
0
20
40
60
80
100
V
COM
(V)
TEMPERATURE (°C)
4
_______________________________________________________________________________________
±15kV ESD-Protected, Low-Voltage,
SPDT/SPST, CMOS Analog Switches
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. TEMPERATURE AND SUPPLY VOLTAGE
MAX4561/8/9-04
MAX4561/MAX4568/MAX4569
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE
MAX4561/8/9-05
TURN-ON/TURN-OFF TIME vs. V
COM
V+ = 5V
t
ON
MAX4561/8/9-06a
60
50
SUPPLY CURRENT (nA)
40
30
20
10
0
-40
-20
0
20
40
60
80
V+ = 12V
120
100
80
60
40
V+ = 5V
V
COM
= 3V
t
ON
120
100
80
60
40
20
0
V+ = 3V
V+ = 5V
t
ON
/t
OFF
(ns)
t
ON
/t
OFF
(ns)
t
OFF
t
OFF
20
0
-40
-20
0
20
40
60
80
0
1
2
3
4
5
100
TEMPERATURE (°C)
V
COM
(V)
TEMPERATURE (°C)
TURN-ON/TURN-OFF TIME vs. V
COM
V+ = 3V
140
120
t
ON
/t
OFF
(ns)
100
80
60
t
OFF
40
20
0
0
0.5
1.0
1.5
V
COM
(V)
2.0
2.5
3.0
t
ON
MAX4561/8/9-06b
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
MAX4561/8/9-07
SCR HOLDING CURRENT
vs. TEMPERATURE
180
160
HOLDING CURRENT (mA)
140
120
100
80
60
40
20
0
I
H
MAX4561/8/9-08
160
350
300
250
t
ON
/t
OFF
(ns)
200
150
100
50
0
1
2
3
4
SUPPLY VOLTAGE (V)
5
t
OFF
t
ON
200
-60
-40
-20
0
20
40
60
80
100
TEMPERATURE (°C)
MAX4561
CHARGE INJECTION vs. V
COM
MAX4561/8/9-09a
MAX4568/MAX4569
CHARGE INJECTION vs. V
COM
MAX4561/8/9-09b
10
5
0
-5
Q (pC)
V+ = 5V
20
15
10
Q (pC)
V+ = 3V
5
0
V+ = 5V
-5
-10
-10
-15
-20
-25
-30
-35
-40
0
1
2
3
4
5
V
COM
(V)
V+ = 3V
0
1
2
3
4
5
V
COM
(V)
________________________________________________________________________________________
5
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