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.
General Description
The MAX4503/MAX4504 are low-voltage, dual-supply,
single-pole/single-throw (SPST), CMOS analog switch-
es. The MAX4503 is normally open (NO). The MAX4504
is normally closed (NC).
These CMOS switches can operate continuously with
dual supplies between ±1.V and ±6V. Each switch can
handle rail-to-rail analog signals. The off-leakage cur-
rent is only 1nA at +25°C or 10nA at +85°C.
The digital input is CMOS-logic compatible when using
±5V supplies. A unique logic input architecture allows
this even though the parts have no ground pin.
For single-supply operation, use the MAX4501/
MAX4502, which are pin-for-pin equivalents.
________________________Applications
Battery-Operated Equipment
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Communications Circuits
Cellular Phones
PCMCIA Cards
Modems
____________________________Features
♦Available in SOT23-5 Package
♦Dual-Supply Operation from ±1V to ±6V
♦Guaranteed On-Resistance:
250ΩΩwith ±5V Supplies
♦Guaranteed Low Off-Leakage Currents:
1nA at +25°C
10nA at +85°C
♦Guaranteed Low On-Leakage Currents:
2nA at +25°C
20nA at +85°C
♦Guaranteed Low Charge Injection: 10pC Max
♦Fast Switching Speed: tON = 150ns, tOFF = 100ns
♦CMOS-Logic Compatible Input
MAX4503/MAX4504
Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
________________________________________________________________ Maxim Integrated Products 1
TOP VIEW
IN
N.C.
N.C.
V+
1
2
8
7
NO
V-
N.C.
COM
MAX4503
DIP/SO
3
4
6
5
IN
N.C.
N.C.
V+
1
2
8
7
NC
V-
N.C.
COM
MAX4504
DIP/SO
3
4
6
5
N.C. = NOT INTERNALLY CONNECTED
NO
IN
V-
15V+
COM
MAX4503
SOT23-5
2
34
NC
IN
V-
15V+
COM
MAX4504
SOT23-5
2
34
INPUT
LOW
HIGH
SWITCH STATE
MAX4503
OFF
ON
MAX4504
ON
OFF
MARKING INFORMATION (SOTs ONLY)
XX XX AC = MAX4503
AD = MAX4504
LOT SPECIFIC CODE
___________________________________________________________Pin Configurations
19-1064; Rev 1; 1/07
PART
MAX4503CPA
MAX4503CSA
MAX4503CUK 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP RANGE PIN-PACKAGE
8 Plastic DIP
8 SO
5 SOT23-5
______________Ordering Information
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
**Contact factory for availability.
MAX4503C/D 0°C to +70°CDice*
MAX4503EPA -40°C to +85°C8 Plastic DIP
MAX4503ESA -40°C to +85°C8 SO
MAX4503EUK -40°C to +85°C5 SOT23-5
MAX4503MJA -55°C to +125°C8 CERDIP**
MAX4503/MAX4504
Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—±5V Supply
(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, VINH =3.5V, VINL = 1.5V, TA= TMIN to TMAX, unless otherwise noted. Typical values are at
TA= +25°C.)
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.
Note 1: Voltages on any signal terminal exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to maximum
current rating.
(Voltages Referenced to V-)
V+ ..............................................................................-0.3V, +13V
Voltage into Any Terminal (Note 1) ..........-0.3V to (V+ + 0.3V) or
±10mA (whichever occurs first)
Continuous Current into Any Terminal..............................±10mA
Peak Current, NO_ or COM_
(pulsed at 1ms,10% duty cycle)...................................±20mA
Continuous Power Dissipation (TA= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ...727mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
5-Pin SOT23-5 (derate 7.1mW/°C above +70°C) ........571mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C)........640mW
Operating Temperature Ranges
MAX4503C_ _/MAX4504C_ _ .............................0°C to +70°C
MAX4503E_ _/MAX4504E_ _ ...........................-40°C to +85°C
MAX4503MJA/MAX4504MJA ........................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
IN Input Logic High VIH (V+) - 1.5 V+ V
IN Input Logic Low VIL V- (V+) - 3.5 V
IN Input Current Logic
High or Low IIH, IIL -1 0.03 1 µAVIN = V+, 0V
CONDITIONSPARAMETER SYMBOL MIN TYP MAX
(Note 2) UNITS
COM On Leakage Current
(Note 3) ICOM(ON)
-2 0.01 2
nA
COM Off Leakage Current
(Note 3) ICOM(OFF)
-1 0.01 1
nA
NO or NC Off Leakage
Current (Note 3)
INO(OFF),
INC(OFF)
-1 0.01 1
nA
Analog Signal Range VCOM, VNO,
VNC V- V+ V
COM to NO or NC
On-Resistance RON
60 250 Ω
TA = +25°C
TA = +25°C
TA = +25°C
V+ = 5.5V, V- = -5.5V,
VCOM = ±4.5V,
VNO or VNC = ±4.5V
V+ = 5.5V, V- = -5.5V,
VCOM_ = ±4.5V,
VNO or VNC = _
+4.5V
V+ = 5.5V, V- = -5.5V,
VCOM_ = ±4.5V,
VNO or VNC = _
+4.5V
VCOM_ = 3.5V, ICOM = 1mA TA = +25°C
ANALOG SWITCH
DIGITAL I/O
TA = TMIN to TMAX 350
TA = TMIN
to TMAX
TA = TMIN
to TMAX
-100 100
-10 10
-100 100
-10 10
TA = TMIN
to TMAX -200 200
-20 20
C, E
M
C, E
M
C, E
M
MAX4503/MAX4504
Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—±5V Supply (continued)
(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, VINH = 3.5V, VINL = 1.5V, TA= TMIN to TMAX, unless otherwise noted. Typical values are at
TA= +25°C.)
TA = +25°C
VIN = 0V or V+
VIN = 3V, RL= 1kΩ
VNO or VNC = 3V, Figure 1
CONDITIONS
CL= 1nF, VNO_ = 0V, RS= 0Ω,
TA = +25°C, Figure 2
TA = +25°C
TA = +25°C
µA
-125 40 125
I+, I-V+, V- Supply Current
pFf = 1MHz, TA = +25°C, Figure 4CON(COM)
COM On Capacitance
pFf = 1MHz, TA = +25°C, Figure 4COFF(COM)
COM Off Capacitance
pFf = 1MHz, TA = +25°C, Figure 4CNO(OFF)
NO or NC Off Capacitance
dB
RL= 50Ω, CL= 15pF, VNO = 1VRMS,
f = 100kHz, TA = +25°C, Figure 3
VISO
Off Isolation
pCQ
Charge Injection
(Note 4)
ns
20 100
tOFF
Turn-Off Time
ns
30 150
tON
Turn-On Time
UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
TA = TMIN to TMAX 240
150TA = TMIN to TMAX
TA = TMIN to TMAX -200 200
SWITCH DYNAMIC CHARACTERISTICS
POWER SUPPLY
110
<-90
3
3
9
VIN = 3V, RL= 1kΩ
VNO or VNC = 3V, Figure 1
MAX4503/MAX4504
Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—±3V Supply
(V+ = +2.7V to +3.3V, V- = -2.7V to -3.3V, VINH = 2.4V, VINL = 0.8V, TA= TMIN to TMAX, unless otherwise noted. Typical values are at
TA= +25°C.)
IN Input Logic High VINH 2.4 V+ V
IN Input Logic Low VINL V- 0.4 V
IN Input Current Logic High
or Low IIH, IIL -1 0.03 1 µA
CONDITIONSPARAMETER SYMBOL MIN TYP MAX
(Note 2) UNITS
COM On Leakage Current
(Notes 3, 4) ICOM(ON)
-2 2
nA
COM Off Leakage Current
(Notes 3, 4) ICOM(OFF)
-1 1
nA
NO or NC Off Leakage
Current (Notes 3, 4)
INO(OFF),
INC(OFF)
-1 1
nA
Analog Signal Range VCOM, VNO,
VNC 0V+V
COM to NO or NC
On-Resistance RON
100 400 Ω
TA = +25°C
TA = +25°C
VNO or VNC = ±1.5V,
VCOM_ = ±1.5V,
V+ = 3.3V, V- = -3.3V
VCOM_ = ±1.5V,
VNO or VNC = _
+1.5V,
V+ = 3.3V, V- = -3.3V
VCOM_ = ±1.5V,
VNO or VNC = _
+1.5V,
V+ = 3.3V, V- = -3.3V
VCOM_ = 1.5V, ICOM = 0.1mA TA = +25°C
V+, V- Supply Current I+, I- IN = 0V or V+ TA = +25°C-100 25 100 µA
Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 4: Guaranteed, not production tested.
Note 3: Leakage parameters are 100% tested at maximum rated hot operating temperature, and guaranteed by correlation at +25°C.
Note 5: SOT packaged parts are 100% tested at +25°C. Limits at maximum and minimum rated temperature are guaranteed by
design and correlation limits at +25°C.
TA = TMIN to TMAX 500
-100 100
-10 10
TA = TMIN
to TMAX -100 100
-10 10
TA = TMIN
to TMAX -200 200
-20 20
TA = TMIN to TMAX -175 175
ANALOG SWITCH
DIGITAL I/O
POWER SUPPLY
TA = +25°C
TA = TMIN
to TMAX
C, E
M
C, E
M
C, E
M
MAX4503/MAX4504
Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
_______________________________________________________________________________________ 5
200
180
160
140
120
100
80
60
40
20
0
-5 -2-10123-4 -3 4 5
ON-RESISTANCE
vs. VCOM AND TEMPERATURE
MAX4503-01
VCOM (V)
RON (Ω)
TA = +125°C
TA = +85°C
TA = -55°C
TA = +25°C
1000
10
-5 -2 0 4321-1-4 -3 5
ON-RESISTANCE vs. VCOM
MAX4503-02
VCOM (V)
RON (Ω)
100
V+ = +5V
V- = -5V
V+ = +1V
V- = -1V
V+ = +4V
V- = -4V
V+ = +3V
V- = -3V
V+ = +2V
V- = -2V
5
4
3
2
1
0
-1
-2
-3
-4
-5
-5 -2-10123-4 -3 4 5
CHARGE INJECTION vs. VCOM
MAX4503-03
VCOM (V)
Q (pC)
V+ = +5V
V- = -5V
10
1
0.01
0.001
0.0001
0.00001
-60 0 20 40 60 80 100-40 -20 120 140
LEAKAGE CURRENT
vs. TEMPERATURE
MAX4503-04
TEMPERATURE (°C)
LEAKAGE CURRENT (nA)
ICOM ON
ICOM/NO/NC OFF
3.0
2.5
2.0
1.0
1.5
0
0.5
-0.5
-1.0
023415
LOGIC THRESHOLD
vs. V+ AND V-
MAX4503-07
V+, V- VOLTAGE (V)
LOGIC THRESHOLD (V)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
0.0001 0.1 1 100.001 0.01 100 1000
FREQUENCY RESPONSE (50Ω IN AND OUT)
MAX4503-05
FREQUENCY (MHz)
LOSS (dB)
PHASE (DEGREES)
OFF ISOLATION
ON PHASE
ON LOSS
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
MAX4503-06
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION (%)
100
0.01
10 100 1000 10,000 100,000
0.1
1
10
600Ω IN/OUT
V+ = 5V
V- = -5V
__________________________________________Typical Operating Characteristics
(V+ = +5V, V- = -5V, TA = +25°C, unless otherwise noted.)
__________Applications Information
Power-Supply Considerations
The MAX4503/MAX4504’s construction is typical of
most CMOS analog switches, except they have only
two supply pins: V+ and V-. These voltages set the
analog voltage limits of the switch. Reverse ESD-pro-
tection diodes are internally connected between IN and
each analog signal pin and both V+ and V-. If any ana-
log signal exceeds V+ or V-, one of these diodes will
conduct. During normal operation, these (and other)
reverse-biased ESD diodes leak, forming the only cur-
rent drawn from V-. Additional current flows through V+
from the logic-level translator.
Virtually all the analog leakage current is provided
through the ESD diodes. Although the ESD diodes on a
given signal pin are identical and therefore fairly well
balanced, they are reverse biased differently. Each is
biased by either V+ or V- and the analog signal. This
means their leakages will vary as the signal varies. The
difference in the two diode leakages to the V+ and V-
pins constitutes the analog-signal-path leakage current.
All analog leakage current flows between each pin and
one of the supply terminals, not to the other switch ter-
minal. This is why both sides of a given switch can
show leakage currents of either the same or opposite
polarity.
There is no connection between the analog signal
paths and V+ or V-.
V+ and V- also power the internal logic and logic-level
translators. Since there is no ground pin, the logic input
has a low-current pull-up to V+ and the logic limit is set
by an internal comparator referenced to V+. The logic-
level translators convert the logic levels to switched V+
and V- signals, to drive the gates of the analog signals.
This drive signal is the only connection between the
logic supplies (and signals) and the analog supplies.
COM, NO, and NC pins have ESD-protection diodes to
V+ and V-.
The logic is CMOS compatible when V+ is +5V. CMOS
compatibility is maintained with all V+ values, assuming
that the CMOS logic is operated from the same V+ sup-
ply. Since the MAX4503/MAX4504 have no ground
pins, the logic levels are internally referenced to V+.
Do not connect the MAX4503/MAX4504 V+ to +3V
and connect the logic-level pins to TTL-logic-level
signals. TTL levels can exceed +3V and violate the
absolute maximum ratings, damaging the part
and/or external circuits.
High-Frequency Performance
In 50Ωsystems, signal response is reasonably flat up
to 50MHz. (see Typical Operating Characteristics).
Above 20MHz the on-response has several minor
peaks which are highly layout dependent. The problem
is not in turning the switch on, but in turning it off. The
off-state switch acts like a capacitor, and passes higher
frequencies with less attenuation. At 10MHz, off isola-
tion is about -65dB in 50Ωsystems, becoming worse
(approximately 20dB per decade) as frequency
increases. Higher circuit impedances also make off iso-
lation worse.
MAX4503/MAX4504
Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
6 _______________________________________________________________________________________
______________________________________________________________Pin Description
MAX4503
DIP/SO SOT23-5
FUNCTION
1 1 Analog Switch Common Terminal
2, 3, 5 —No Connect (not internally connected)
8 2 Analog Switch Normally Open Terminal
7 3 Negative (analog) Supply Voltage Input
6 4 Digital Control Input
4 5 Positive (analog and digital) Supply Voltage Input
— — Analog Switch Normally Closed Terminal
MAX4504
DIP/SO SOT23-5
PIN
1 1
2, 3, 5 —
— —
7 3
6 4
4 5
8 2
NAME
COM
N.C.
NO
V-
IN
V+
NC
Note: NO, NC, and COM pins are identical and interchangeable. Either may be considered as an input or output; signals pass
equally well in both directions.
MAX4503/MAX4504
Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
_______________________________________________________________________________________ 7
______________________________________________Test Circuits/Timing Diagrams
50%
tOFF
tON
VOUT
VIN
VIN
0V
V+
VOUT
V-
V-
V+
IN
NO
COM
VNO
50Ω
MAX4503
1k 35pF
90% 90%
0V
VIN
50%
tON
tOFF
VOUT
VIN
VOUT
VOUT
VIN
0V
V+
VOUT
V-
V-
V+
IN
NC
COM
VNC
50Ω
MAX4504
1k 35pF
90% 90%
0V
VIN
∆VOUT
V+
0V
VIN
VOUT
MAX4503MAX4504
∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = ∆VOUT x CL
V+
VOUT
V-
V-
V+
IN
NO
or
NC
COM
VNO or VNC = 0V
50Ω
MAX4503
MAX4504
CL
1000pF
VIN
Figure 1. Switching Times
Figure 2. Charge Injection
MAX4503/MAX4504
Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
8 _______________________________________________________________________________________
Figure 3. Off Isolation and On Loss
MEASUREMENTS ARE STANDARDIZED AGAINST SHORT
AT SOCKET TERMINALS. OFF ISOLATION IS MEASURED
BETWEEN COM AND “OFF” TERMINAL ON EACH SWITCH.
ON LOSS IS MEASURED BETWEEN COM AND “ON”
TERMINAL ON EACH SWITCH. SIGNAL DIRECTION
THROUGH SWITCH IS REVERSED; WORST-VALUES
ARE RECORDED.
V+
V+ VOUT
V-
V-
V+
IN
NO
or
NC
COM
VIN
MAX4503
MAX4504
OFF ISOLATION = 20log VOUT
VIN
ON LOSS = 20log VOUT
VIN
NETWORK
ANALYZER
50Ω
50Ω50Ω
50Ω
MEAS. REF
10nF
Figure 4. NO, NC, and COM Capacitance
V+
V-
V-
V+
IN
NO
or
NC
COM
MAX4503
MAX4504 1MHz
CAPACITANCE
ANALYZER
AS
REQUIRED
___________________Chip Topography
TRANSISTOR COUNT: 36
SUBSTRATE IS INTERNALLY CONNECTED TO V+
_Ordering Information (continued)
*Contact factory for dice specifications.
**Contact factory for availability.
PART
MAX4504CPA
MAX4504CSA
MAX4504CUK 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
8 Plastic DIP
8 SO
5 SOT23-5
MAX4504C/D 0°C to +70°CDice*
MAX4504EPA -40°C to +85°C8 Plastic DIP
MAX4504ESA -40°C to +85°C8 SO
MAX4504EUK -40°C to +85°C5 SOT23-5
MAX4504MJA -55°C to +125°C8 CERDIP**
_________________________________Test Circuits/Timing Diagrams (continued)
V–
0.030"
(0.762mm)
IN V+
0.035"
(0.889mm)
NO/NC
COM
MAX4503/MAX4504
Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
_______________________________________________________________________________________ 9
__________________________________________________Tape-and-Reel Information
MAX4503/MAX4504
Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
10 ______________________________________________________________________________________
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
SOT-23 5L .EPS
MAX4503/MAX4504
Low Voltage, Dual-Supply, SPST,
CMOS Analog Switches
______________________________________________________________________________________ 11
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
MAX4503/MAX4504
Low-Voltage, Dual-Supply, SPST,
CMOS Analog Switches
12 ______________________________________________________________________________________
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
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.
13 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 2007 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
Revision History
Changes made at Rev 1: 1, 4, 10, 11, 12