19-1762; Rev 0; 7/00
±15kV ESD-Protected, Low-Voltage, Dual, SPST,
CMOS Analog Switches
MAX4575/MAX4576/MAX4577
General Description
The MAX4575/MAX4576/MAX4577 are low-voltage,
high electrostatic discharge (ESD)-protected, dual sin-
gle-pole/single-throw (SPST) analog switches. The nor-
mally closed (NO) and normally open (NC) pins are
protected against ±15kV ESD without latchup or dam-
age. Each switch can handle Rail-to-Rail
®
analog sig-
nals. Off-leakage current is 0.5nA at +25°C. These
analog switches are suitable for low-distortion audio
applications and are the preferred solution over
mechanical relays in automated test equipment or
applications where current switching is required. They
have low power requirements (0.5µW), require less
board space, and are more reliable than mechanical
relays. Each device is controlled by TTL/CMOS input
voltage levels and is bilateral.
These switches feature guaranteed operation from a
single supply of +2V to +12V, making them ideal for
use in battery-powered applications. On-resistance is
70Ω (max), matched between switches to 0.5Ω (typ)
and flat (2Ω typ) over the specified signal range.
The MAX4575 has two NO switches, the MAX4576 has
two NC switches, and the MAX4577 has one NO and
one NC switch. These devices are available in 8-pin
µMAX and SO packages.
____________________________Features
o
ESD-Protected NO/NC Pins
±15kV (Human Body Model)
±15kV (IEC 1000-4-2 Air-Gap Discharge)
±8kV (IEC 1000-4-2 Contact Discharge)
o
Pin Compatible with MAX4541/MAX4542/MAX4543
o
Guaranteed On-Resistance
70Ω (max) at +5V
150Ω (max) at +3V
o
On-Resistance Flatness
2Ω (typ) at +5V
6Ω (typ) at +3V
o
On-Resistance Matching
0.5Ω (typ) at +5V
0.6Ω (typ) at +3V
o
Guaranteed 0.5nA Leakage Current at T
A
= +25°C
o
+2V to +12V Single-Supply Voltage
o
TTL/CMOS-Logic Compatible
o
Low Distortion: 0.015%
o
-3dB Bandwidth >300MHz
o
Rail-to-Rail Signal Range
Applications
Battery-Powered Systems
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Communications Circuits
Relay Replacement
Pin Configurations/
Functional Diagrams/Truth Tables
TOP VIEW
MAX4575
NO1
1
COM1
2
IN2
3
GND
4
SO/
µ
MAX
MAX4575
LOGIC
SWITCH
0
1
OFF
ON
8
7
6
5
V+
IN1
COM2
NO2
Ordering Information
PART
MAX4575
EUA
MAX4575ESA
MAX4576
EUA
MAX4576ESA
MAX4577
EUA
MAX4577ESA
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 µMAX
8 SO
8 µMAX
8 SO
8 µMAX
8 SO
SWITCHES SHOWN FOR LOGIC "0" INPUT
Pin Configurations/Functional Diagrams/Truth Tables
continued at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
________________________________________________________________
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, Dual, SPST,
CMOS Analog Switches
MAX4575/MAX4576/MAX4577
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +13V
IN_, COM_, NO_, NC_ to GND (Note 1).......-0.3V to (V+ + 0.3V)
Continuous Current (NO_, NC_, COM).............................±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
NO_, NC_ ...........................................................................±15kV
V+, GND, IN_, COM_ ........................................................±2.5kV
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW
8-Pin SO (derate 8mW/°C above +70°C).....................640mW
Operating Temperature Range
MAX457_E_A ................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Maximum Die Temperature..............................................+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 V+ = +5V,
T
A
= +25°C.) (Note 2)
PARAMETER
ANALOG SWITCH
Input Voltage Range
V
COM_
,
V
NO_
,
V
NC_
R
ON
V+ = +4.5V,
I
COM_
= 1mA,
V
NO_
or V
NC_
= 3.5V
V+ = +4.5V,
I
COM_
= 1mA,
V
NO_
or V
NC_
= 3.5V
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
2
0.5
0
V+
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
45
70
Ω
75
2
Ω
3
4
Ω
5
On-Resistance
On-Resistance Match Between
Channels (Note 3)
∆R
ON
On-Resistance Flatness (Note 4)
R
FLAT(ON)
V+ = +4.5V, I
COM_
= 1mA, T
A
= +25°C
V
NO_
or V
NC_
= 1V,
T
A
= T
MIN
to T
MAX
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
-0.5
-5
-0.5
-5
-1
-10
Off-Leakage Current
(NO_ or NC_) (Note 5)
0.01
0.5
nA
5
I
NO_
, I
NC_
COM_ Off-Leakage Current
(Note 5)
0.01
0.5
nA
5
I
COM_(OFF)
0.02
1
nA
10
COM_ On-Leakage Current
(Note 5)
I
COM_(ON)
2
_______________________________________________________________________________________
±15kV ESD-Protected, Low-Voltage, Dual, SPST,
CMOS Analog Switches
MAX4575/MAX4576/MAX4577
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 V+ = +5V,
T
A
= +25°C.) (Note 2)
PARAMETER
LOGIC INPUT
IN_ Input High
IN_ Input Low
Logic Input Leakage
SWITCH DYNAMIC
Turn-On Time
V
COM
_ = 3V,
R
L
= 300Ω, C
L
= 35pF,
Figure 1
V
COM
_ = 3V,
R
L
= 300Ω, C
L
= 35pF,
Figure 1
V
COM
_ = 3V,
R
L
= 300Ω, C
L
= 35pF
BW
Q
C
OFF
C
COM(OFF)
C
COM(ON)
V
ISO
V
CT
THD
I
H
V
H
V+
I+
V+ = 5.5V,
V
IN
= 0 or V+
T
A
= +25°C
T
A
= T
MIN
to T
MAX
2
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
5
4
300
4
20
12
20
-75
-45
-90
-70
0.015
110
3
12
1
10
MHz
pC
pF
pF
pF
dB
dB
%
mA
V
V
µA
45
ns
50
90
150
ns
180
80
ns
100
V
IH
V
IL
I
IN
V
IN
= 0 or V+
-1
2.4
0.8
1
V
V
µA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
t
ON
Turn-Off Time
t
OFF
Break-Before-Make
(MAX4577 only)
On-Channel Bandwidth -3dB
Charge Injection
NO_ or NC_ Off-Capacitance
COM_ Off-Capacitance
COM_ On-Capacitance
Off-Isolation (Note 7)
Crosstalk (Note 8)
Total Harmonic Distortion
ESD SCR Holding Current
ESD SCR Holding Voltage
POWER SUPPLY
Power-Supply Range
Positive Supply Current
Signal = 0dBm, R
IN
= R
OUT
= 50Ω, C
L
= 5pF,
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,
R
L
= 50Ω, C
L
= 5pF, f = 1MHz, Fig ur e 2
R
L
= 50Ω, C
L
= 5pF, f = 10MH z, Figu re 2
R
L
= 50Ω, C
L
= 5pF, f = 1MHz, Fig ur e 6
R
L
= 50Ω, C
L
= 5pF, f = 10MH z, Figu re 6
R
L
= 600
Ω
, f = 20H z to 20kHz
_______________________________________________________________________________________
3
±15kV ESD-Protected, Low-Voltage, Dual, SPST,
CMOS Analog Switches
MAX4575/MAX4576/MAX4577
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.) (Note 2)
PARAMETER
ANALOG SWITCH
Input Voltage Range
V
COM_
,
V
NO_
,
V
NC_
R
ON
V+ = 2.7V;
I
COM_
= 1mA;
V
NO_
or V
NC_
= 1.5V
V+ = 2.7V; I
COM_
= 1mA;
V
NO_
or V
NC_
= 1.5V
V+ = 2.7V; I
COM_
= 1mA;
V
NO_
or V
NC_
= 0.5V,
1.5V, 2.2V
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
6
0.6
0
V+
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
70
120
Ω
150
3
4
12
Ω
15
Ω
On-Resistance
On-Resistance Match Between
Channels (Notes 3, 8)
On-Resistance Flatness
(Notes 4, 8)
LOGIC INPUT
IN_ Input High
IN_ Input Low
∆R
ON
R
FLAT(ON)
V
IH
V
IL
V
IN
= 0 or V+
V
COM
_ = 1.5V,
R
L
= 300Ω, C
L
= 35pF,
Figure 1
V
COM
_ = 1.5V,
R
L
= 300Ω, C
L
= 35pF,
Figure 1
V
COM
_ = 1.5V,
R
L
= 300Ω, C
L
= 35pF
Q
I
H
V
H
V+
I+
V+ = 3.6V,
V
IN
= 0 or V+
T
A
= +25°C
T
A
= T
MIN
to T
MAX
2.0
0.6
-1
1
V
V
µA
Logic Input Leakage Current
I
IN
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time
t
ON
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
5
4
150
250
ns
300
60
100
ns
150
ns
Turn-Off Time
Break-Before-Make
(MAX4577 only)
Charge Injection
ESD SCR Holding Current
ESD SCR Holding Voltage
POWER SUPPLY
Power-Supply Range
Positive Supply Current
t
OFF
V
GEN
= 1.5V, C
L
= 1.0nF, R
GEN
= 0,
Figure 3
5
110
3
2
12
1
10
pC
mA
V
V
µA
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:
∆R
ON
= R
ON(MAX)
- R
ON(MIN)
.
Note 4:
Flatness is defined as the difference between the maximum and the minimum values of on-resistance as measured over
the specified analog signal ranges.
Note 5:
Leakage parameters are 100% tested at T
A
(
MAX
), and guaranteed by correlation at +25°C.
Note 6:
Off-Isolation = 20log
10
(V
COM
/ V
NO
), V
COM
= output, V
NO
= input to off switch.
Note 7:
Between any two switches.
Note 8:
Guaranteed by design.
4
_______________________________________________________________________________________
±15kV ESD-Protected, Low-Voltage, Dual, SPST,
CMOS Analog Switches
Typical Operating Characteristics
(V+ = 5V, T
A
= +25°C, unless otherwise specified.)
ON-RESISTANCE vs. V
COM
AND
SUPPLY VOLTAGE
MAX4575-01
MAX4575/MAX4576/MAX4577
ON-RESISTANCE vs. V
COM
AND TEMPERATURE
MAX4575-02
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4575-03
180
160
140
120
R
ON
(Ω)
100
80
60
40
20
0
V+ = 2.5V
V+ = 3.3V
V+ = 5V
V+ = 1.8V
60
50
40
R
ON
(Ω)
30
T
A
= +85°C
20
10
0
T
A
= -40°C
1000
LEAKAGE CURRENT (pA)
100
ON
10
OFF
T
A
= +25°C
1
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
COM
(V)
-40
-15
10
35
60
85
TEMPERATURE (°C)
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
COM
(V)
SUPPLY CURRENT
vs. V
CC
AND TEMPERATURE
MAX4575-04
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE
MAX4575-05
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
MAX4575-06
12
10
SUPPLY CURRENT (nA)
8
V+ = 5V
100
90
80
70
t
ON
/t
OFF
(ns)
V+ = 5V
V
COM
= 3V
140
120
100
t
ON
/t
OFF
(ns)
t
ON
80
60
40
20
0
t
OFF
t
ON
60
50
40
30
20
10
t
OFF
6
4
2
0
-40
-15
10
35
60
85
TEMPERATURE (°C)
0
-40
-15
10
35
60
85
TEMPERATURE (°C)
0
3
6
9
SUPPLY VOLTAGE (V)
12
TURN-ON/TURN-OFF TIME
vs. V
COM
(V+ = 3V)
MAX4575-07
TURN-ON/TURN-OFF
vs. V
COM
(V+ = 5V)
MAX4575-08
CHARGE INJECTION vs. V
COM
MAX4575-09
140
120
100
t
ON
/t
OFF
(ns)
V+ = 3V
t
ON
90
80
70
60
t
ON
/t
OFF
(ns)
V+ = 5V
t
ON
20
15
CHARGE INJECTION (pC)
10
V+ = 3V
5
0
-5
V+ = 5V
-10
80
60
40
20
0
0
0.5
1.0
t
OFF
50
40
30
20
10
0
t
OFF
1.5
V
COM
(V)
2.0
2.5
3.0
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
1
2
V
COM
(V)
3
4
5
V
COM
(V)
_______________________________________________________________________________________
5
京公网安备 11010802033920号
EEWORLD
