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19-1663; Rev 2; 2/04
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
General Description
The MAX4594–MAX4597 single-pole/single-throw
(SPST) analog switches operate from a single +2.0V to
+5.5V supply. The MAX4594/MAX4596 switches are
normally open (NO), and the MAX4595/MAX4597 are
normally closed (NC). The MAX4596/MAX4597 pinouts
are optimized for the highest SC70 package off-isola-
tion available.
These switches have 10Ω max on-resistance (R
ON
),
with 1.5Ω max R
ON
flatness over the analog signal
range when powered from a +5V supply. The
MAX4594–MAX4597 offer low 0.5nA leakage currents
and fast switching times less than 40ns. They are pack-
aged in an ultra-small 5-pin SC70 and 6-pin µDFN.
____________________________Features
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
Available in 5-Pin SC70 and 6-Pin µDFN Packages
10Ω max On-Resistance
1.5Ω max On-Resistance Flatness
Fast Switching
t
ON
= 35ns max
t
OFF
= 40ns max
Guaranteed 5pC max Charge Injection
+2.0V to +5.5V Single-Supply Operation
300MHz -3dB Bandwidth at +25°C
TTL/CMOS-Logic Compatible
-80dB Off-Isolation at 1MHz
0.5nA max Off-Leakage
0.05% THD
MAX4594–MAX4597
Ordering Information
________________________Applications
Cellular Phones
Battery-Operated Equipment
Audio and Video Signal Routing
Communications Circuits
PCMCIA Cards
DSL Modems
PART
MAX4594EXK-T
MAX4594ELT-T
MAX4595EXK-T
MAX4595ELT-T
MAX4596EXK-T
MAX4596ELT-T
MAX4597EXK-T
MAX4597ELT-T
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
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
5 SC70-5
6 µDFN-6
5 SC70-5
6 µDFN-6
5 SC70-5
6 µDFN-6
5 SC70-5
6 µDFN-6
TOP
MARK
AAH
AB
AAI
AC
AAJ
AD
AAK
AE
Pin Configurations/Functional Diagrams/Truth Table
TOP VIEW
COM
1
5
V+
COM
1
5
V+
IN
1
5
V+
IN
1
5
V+
NO
2
NC
2
COM
2
COM
2
GND
3
MAX4594
SC70
4
IN
GND
3
MAX4595
SC70
INPUT
LOW
HIGH
4
IN
GND
3
MAX4596
SC70
4
NO
GND
3
MAX4597
SC70
4
NC
SWITCH STATE
MAX4595/MAX4597
MAX4594/MAX4596
ON
OFF
OFF
ON
SWITCHES SHOWN FOR LOGIC O INPUT.
Pin Configurations/Functional Diagrams/Truth Table continued at end of data sheet.
________________________________________________________________
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.
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
MAX4594–MAX4597
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND)
V+ .............................................................................-0.3V to +6V
Voltage into Any Terminal (Note 1)...............-0.3V to (V+ + 0.3V)
Continuous Current into Any Terminal..............................±20mA
Peak Current, NO, NC, or COM
(pulsed at 1ms, 10% duty cycle).................................±40mA
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C).............247mW
6-Pin µDFN (derate 2.1mW/°C above +70°C) ............168mW
Operating Temperature Range
MAX459_EXK .................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1:
Voltages exceeding V+ or GND on any signal terminal are clamped by internal diodes. Limit forward-diode current to maxi-
mum 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— +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 noted. Typical values are at V+ = +5V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
V
COM
, V
NO
,
V
NC
R
ON
V+ = 4.5V, V
NO,
or
V
NC
= 3.5V;
I
COM
= 10mA
V
NO
or V
NC
= 1.5V, 2.5V,
3.5V; V+ = 4.5V;
I
COM
= 10mA
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
-0.5
-5
-0.5
-5
-1
-10
2.4
0.8
V
IN
= V+, 0
V
NO
or V
NC
= 3V,
R
L
= 300Ω, C
L
= 35pF,
Figure 3
V
NO
or V
NC
= 3V,
R
L
= 300Ω, C
L
= 35pF,
Figure 3
Signal = 0dBm, 50Ω in and
out, Figure 4
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
300
25
-1
0.03
20
1
35
ns
45
40
ns
50
MHz
0.01
0.01
0.01
0.5
0
6.5
V+
10
12
1.5
2
0.5
nA
5
0.5
nA
5
1
nA
10
V
V
µA
V
Ω
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
On-Resistance
On-Resistance Flatness
(Note 4)
NO or NC Off-Leakage
Current
R
FLAT(ON)
I
NO(OFF)
I
NC(OFF)
I
COM(OFF)
Ω
COM Off-Leakage Current
COM On-Leakage Current
DIGITAL I/O
Input Logic High
Input Logic Low
Input Logic Current
DYNAMIC
Turn-On Time
I
COM(ON)
V
IH
V
IL
I
IH
, I
IL
t
ON
Turn-Off Time
On-Channel -3dB
Bandwidth
2
t
OFF
BW
_______________________________________________________________________________________
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
ELECTRICAL CHARACTERISTICS— +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 noted. Typical values are at V+ = +5V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
Charge Injection
(Note 5)
Off-Isolation
(Note 6)
SYMBOL
Q
CONDITIONS
V
NO
or V
NC
= 0, C
L
= 1nF,
Figure 2
V
NO
or V
NC
= 1V
RMS
,
R
L
= 50Ω, C
L
= 5pF,
f = 1MHz, Figure 4
V
NO
or V
NC
= 0, f = 1MHz,
Figure 5
V
COM
= 0, f = 1MHz,
Figure 5
V
COM
= 0, f = 1MHz,
Figure 5
V = 5Vp-p, R
L
= 600Ω,
f = 20Hz to 20kHz
T
A
= +25°C
MAX4594/
MAX4595
MAX4596/
MAX4597
MIN
TYP
2
80
dB
83
8
8
20
0.05
pF
pF
pF
%
MAX
5
UNITS
pC
MAX4594–MAX4597
V
ISO
T
A
=
+25°C
NO or NC Off-Capacitance
COM Off-Capacitance
COM On-Capacitance
Total Harmonic Distortion
Plus Noise
POWER SUPPLY
Power-Supply Range
V+ Supply Current
C
NO(OFF)
,
C
NC(OFF)
C
COM(OFF)
C
COM(ON)
THD
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
V+
I+
V+ = 5.5V, V
IN
= 0 or V+
T
A
= T
MIN
to T
MAX
2.0
-1
5.5
1
V
µA
ELECTRICAL CHARACTERISTICS— +3V Supply
(V+ = +2.7V to +3.6V, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +3.0V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
On-Resistance
DIGITAL I/O
Input Logic High
Input Logic Low
Input Logic Current
DYNAMIC
Turn-On Time
Turn-Off Time
Charge Injection
(Note 5)
t
ON
t
OFF
Q
V
NO
or V
NC
= 2V, R
L
=
300Ω, C
L
= 35pF, Figure 3
V
NO
or V
NC
= 2V, R
L
=
300Ω, C
L
= 35pF, Figure 3
V
NO
or V
NC
= 0, C
L
= 1nF,
Figure 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
2
30
25
45
55
50
60
4
ns
ns
pC
V
IH
V
IL
I
IH
, I
IL
V
IN
= V+, 0
-1
0.03
2.0
0.8
1
V
V
µA
V
COM
, V
NO
,
V
NC
R
ON
V
NO
or V
NC
= 1.5V, I
COM
=
10mA, V+ = 2.7V
T
A
= +25°C
T
A
= T
MIN
to T
MAX
0
10
V+
20
25
V
Ω
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
_______________________________________________________________________________________
3
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
MAX4594–MAX4597
ELECTRICAL CHARACTERISTICS— +3V Supply (continued)
(V+ = +2.7V to +3.6V, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +3.0V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
POWER SUPPLY
V+ Supply Current
I+
V+ = 3.6V, V
IN
= 0 or V+
T
A
= T
MIN
to T
MAX
-1
1
µA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Note 2:
Parameters are 100% tested at +25°C only, and guaranteed by correlation at the full-rated temperature.
Note 3:
Algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 4:
Flatness is defined as the difference between the maximum and minimum values of on-resistance as measured over the
specified analog signal ranges.
Note 5:
Guaranteed by design.
Note 6:
Off-Isolation = 20log
10
(V
COM
/ V
NO
), V
COM
= output, V
NO
= input to off switch.
Typical Operating Characteristics
(V+ = +5V, T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. COM VOLTAGE
MAX4594–97 toc 01
ON-RESISTANCE vs. COM VOLTAGE
(V+ = 5V)
MAX4594–97 toc 02
ON-RESISTANCE vs. COM VOLTAGE
(V+ = 3V)
9
8
7
R
ON
(Ω)
6
5
4
3
T
A =
0°C
T
A
= +85°C
T
A
= +25°C
MAX4594–97 toc 03
20
18
16
14
R
ON
(Ω)
V+ = 2V
7
T
A
= +85°C
6
5
R
ON
(Ω)
4
3
2
T
A
= +25°C
10
12
10
8
6
4
2
0
0
1
2
3
4
5
COM VOLTAGE (V)
V+ = 3V
V+ = 5V
T
A
= -40°C
T
A =
0°C
1
0
0
1
2
3
T
A
= -40°C
2
1
0
4
5
0
0.5
1.0
1.5
2.0
2.5
3.0
COM VOLTAGE (V)
COM VOLTAGE (V)
ON/OFF-LEAKAGE CURRENT vs.
TEMPERATURE
MAX4594-97 toc04
CHARGE INJECTION
vs. COM VOLTAGE
MAX4594–97 toc 05
SUPPLY CURRENT vs. TEMPERATURE
MAX4594–97 toc 06
1
ON/OFF-LEAKAGE CURRENT (nA)
V+ = +5V
4
3
CHARGE INJECTION (pC)
V+ = 5V
2
1
0
-1
-2
V+ = 3V
10
1
SUPPLY CURRENT (nA)
V+ = +5V
0.1
V+ = +3V
0.1
I
COM(ON)
NO, NC (OFF)
0.01
0.01
0.001
0.001
-40 -25
-10
5
20
35
50
65
80
TEMPERATURE (°C)
-3
0
1.0
2.0
3.0
4.0
5.0
COM VOLTAGE (V)
0.0001
-40
-15
10
35
60
85
TEMPERATURE (°C)
4
_______________________________________________________________________________________
Embedded System
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