19-1637; Rev 2; 2/04
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
The MAX4599 single-pole/double-throw (SPDT) switch
operates from a +2.0V to +5.5V single supply. It offers
60Ω max on-resistance (RON) at +5V and fast switching
times (tON = 30ns max, tOFF = 25ns max).
The MAX4599 features excellent RON flatness (4Ω max)
and matching (1Ω max) between channels. This device
also offers 5pC max charge injection.
The MAX4599 is available in tiny 6-pin SC70, µDFN, and
SOT23 packages.
Features
♦ Available in 6-Pin SC70 Package
♦ 60Ω max (40Ω typ) On-Resistance
♦ 1Ω max (0.2Ω typ) RON Matching Between
Channels
♦ 4Ω max (2.5Ω typ) RON Flatness
♦ Fast Switching: tON = 30ns (max)
tOFF = 25ns (max)
♦ Guaranteed 5pC max Charge Injection
♦ +2.0V to +5.5V Single-Supply Operation
♦ 200MHz -3dB Bandwidth
♦ Low ±0.5nA Leakage Current at +25°C
Applications
♦ Break-Before-Make Switching
Battery-Operated Equipment
♦ TTL/CMOS-Logic Compatible
Audio and Video Signal Routing
♦ -76dB Off-Isolation at 1MHz
Cellular Phones
♦ 0.12% Total Harmonic Distortion
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Ordering Information
Communications Circuits
PART
TEMP RANGE
PINPACKAGE
TOP
MARK
MAX4599EXT-T
-40°C to +85°C
6 SC70-6
AAF
MAX4599EUT-T
-40°C to +85°C
6 SOT23-6
AAHC
MAX4599ELT-T
-40°C to +85°C
6 µDFN-6
AA
Pin Configuration/Functional Diagram/Truth Table
MAX4599
IN
1
6
NO
V+
2
5
COM
GND
3
4
NC
SC70-6/µDFN-6/SOT23-6
MAX4599
IN
NC
NO
0
ON
OFF
1
OFF
ON
SWITCH IS SHOWN FOR "0" INPUT.
________________________________________________________________ Maxim Integrated Products
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.
1
MAX4599
General Description
MAX4599
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to GND
V+ .........................................................................-0.3V to +6V
IN, COM, NO, NC (Note 1) ...........................-0.3V to (V+ + 0.3V)
Continuous Current (any terminal)....................................±20mA
Peak Current, COM, NO, NC
(pulsed at 1ms, 10% duty cycle)..................................±40mA
Continuous Power Dissipation (TA = +70°C)
6-Pin SC70-6 (derate 3.1mW/°C above +70°C)...........245mW
6-Pin µDFN-6 (derate 2.1mW/°C above +70°C) ..........168mW
6-Pin SOT23-6 (derate 7.1mW/°C above +70°C) ........571mW
Operating Temperature Range
MAX4599E_T ...................................................-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-diode 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, VINH = +2.4V, VINL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V+
V
ANALOG SWITCH
Analog Signal Range
On-Resistance
On-Resistance Match Between
Channels (Note 4)
VCOM,
VNO, VNC
RON
∆RON
0
V+ = 4.5V, ICOM = 1mA,
VNO or VNC = 3.5V
V+ = 4.5V, ICOM = 1A,
VNO or VNC = 3.5V
On-Resistance Flatness
(Note 5)
V+ = 4.5V; ICOM = 1mA;
RFLAT(ON) VNO or VNC = 1V, 2.0V,
3.5V
NO, NC Off-Leakage Current
(Note 6)
INO(OFF),
INC(OFF)
V+ = 5.5V; VCOM = 1V,
4.5V; VNO or VNC = 4.5V,
1V
COM On-Leakage Current
(Note 6)
ICOM(ON)
V+ = 5.5V; VCOM = 1V,
4.5V; VNO or VNC = 1V,
4.5V, or floating
40
TA = +25°C
60
65
TA = TMIN to TMAX
0.2
TA = +25°C
1
2
TA = TMIN to TMAX
2.5
TA = +25°C
Ω
Ω
4
Ω
5
TA = TMIN to TMAX
TA = +25°C
-0.5
0.01
0.5
nA
TA = TMIN to TMAX
-5
TA = +25°C
-1
TA = TMIN to TMAX
-10
5
0.01
1
nA
10
DIGITAL I/O
Input Logic High
VIH
Input Logic Low
VIL
2.4
V
0.8
V
DYNAMIC
Turn-On Time
2
tON
VNO, VNC = 3V;
RL = 1kΩ; CL = 35pF;
Figure 2
TA = +25°C
25
30
ns
TA = TMIN to TMAX
_______________________________________________________________________________________
40
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
(V+ =+4.5V to +5.5V, VINH = +2.4V, VINL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) (Notes 2, 3)
PARAMETER
Turn-Off Time
SYMBOL
tOFF
Break-Before-Make
tBBM
CONDITIONS
VNO, VNC = 3V;
RL = 1kΩ; CL = 35pF;
Figure 2
VNO, VNC = 3V;
RL = 1kΩ; CL = 35pF;
Figure 3
MIN
TA = +25°C
TYP
MAX
20
25
UNITS
ns
30
TA = TMIN to TMAX
TA = +25°C
10
ns
TA = TMIN to TMAX
1
On-Channel -3dB Bandwidth
BW
Signal = 0dBm,
50Ω in and out, Figure 5
TA = +25°C
200
MHz
Off-Isolation (Note 7)
VISO
CL = 5pF; RL = 50Ω;
f = 1MHz; VNO, VNC =
1VRMS; Figure 5
TA = +25°C
-76
dB
VGEN = 0, RGEN = 0,
CL = 1.0nF, Figure 4
TA = +25°C
3
TA = +25°C
8
pF
VCOM = GND, f = 1MHz,
Figure 6
TA = +25°C
8
pF
Charge Injection (Note 6)
Q
NO, NC Off-Capacitance
CNO(OFF), VNO, VNC = GND;
CNC(OFF) f = 1MHz; Figure 6
COM Off-Capacitance
CCOM(OFF)
5
pC
Switch On-Capacitance
C(ON)
VCOM = VNO,
VNC = GND, f = 1MHz,
Figure 6
TA = +25°C
20
pF
Total Harmonic Distortion
THD
RL = 600Ω, VIN = 5Vp-p,
f = 20Hz to 20kHz
TA = +25°C
0.12
%
SUPPLY
Power-Supply Range
V+
Positive Supply Current
I+
2.0
-1
V+ = 5.5V, VIN = 0 or V+
0.001
5.5
V
1
µA
MAX
UNITS
V+
V
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +2.7V to +3.6V, VINH = +2.0V, VINL = +0.8V, TA =TMIN to TMAX, unless otherwise noted.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
ANALOG SWITCH
Analog Signal Range
On-Resistance
VCOM,
VNO, VNC
RON
0
V+ = 2.7V, ICOM = 1mA,
VNO or VNC = 1V
60
TA = +25°C
95
105
TA = TMIN to TMAX
Ω
DIGITAL I/O
Input Logic High
VIH
Input Logic Low
VIL
2.0
V
0.8
V
_______________________________________________________________________________________
3
MAX4599
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
MAX4599
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
(V+ = +2.7V to +3.6V, VINH = +2.0V, VINL = +0.8V, TA =TMIN to TMAX, unless otherwise noted.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
40
45
UNITS
DYNAMIC
Turn-On Time
Turn-Off Time
Break-Before-Make
Charge Injection (Note 6)
tON
tOFF
tBBM
VNO, VNC = 2V;
RL = 1kΩ; CL = 35pF;
Figure 2
VNO, VNC = 2V;
RL = 1kΩ; CL = 35pF;
Figure 2
VNO, VNC = 2V;
RL = 1kΩ; CL = 35pF;
Figure 3
Q
VGEN = 0, RGEN = 0,
CL = 1.0nF, Figure 4
I+
V+ = 3.6V, VIN = 0 or V+
TA = +25°C
ns
TA = TMIN to TMAX
55
TA = +25°C
30
35
ns
40
TA = TMIN to TMAX
TA = +25°C
13
ns
TA = TMIN to TMAX
1
2
5
pC
-1
0.001
1
µA
MIN
TYP
MAX
UNITS
V+
V
110
120
Ω
TA = +25°C
SUPPLY
Positive Supply Current
ELECTRICAL CHARACTERISTICS—Single +2.5V Supply
(V+ = +2.5V, VINH = +2.0V, VINL = +0.6V, TA =TMIN to TMAX, unless otherwise noted.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
ANALOG SWITCH
Analog Signal Range
VCOM,
VNO, VNC
On-Resistance
RON
Input Logic High
VIH
Input Logic Low
VIL
0
V+ = 2.5V, ICOM = 1mA,
VNO or VNC = 1V
65
TA = +25°C
TA = TMIN to TMAX
2.0
V
0.6
V
DYNAMIC
Turn-On Time
Turn-Off Time
tON
tOFF
VNO, VNC = 2V;
RL = 1kΩ; CL = 35pF;
Figure 3
VNO, VNC = 2V;
RL = 1kΩ; CL = 35pF;
Figure 3
TA = +25°C
45
50
ns
TA = TMIN to TMAX
TA = +25°C
60
30
35
ns
TA = TMIN to TMAX
45
Note 2: Parameters are 100% tested at +25°C only and guaranteed by correlation at the full rated temperature.
Note 3: 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 4: ∆RON = RON(MAX) - RON(MIN).
Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 6: Guaranteed by design.
Note 7: Off-Isolation = 20log10 (VCOM / VNO), VCOM = output, VNO = input to off switch.
4
_______________________________________________________________________________________
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
RON (Ω)
70
MAX4599 toc02
80
TA = +85°C
60
40
C
60
D
TA = -40°C
30
E
40
TA = +25°C
50
RON (Ω)
B
80
TA = +85°C
RON (Ω)
100
60
MAX4599 toc02
A: V+ = +2V
B: V+ = +2.5V
C: V+ = +3V
D: V+ = +4.5V
E: V+ = +5V
A
MAX4599 toc01
120
ON-RESISTANCE vs. COM VOLTAGE
(V+ = +3V)
ON-RESISTANCE vs. COM VOLTAGE
(V+ = +5V)
ON-RESISTANCE vs. COM VOLTAGE
TA = +25°C
50
TA = -40°C
40
30
20
20
10
10
0
0
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
ON/OFF-LEAKAGE CURRENT vs.
TEMPERATURE
1.0
MAX4599 toc04
14
12
0.1
V+ = +5V
10
ICOM(ON)
2.5
3.0
SUPPLY CURRENT vs. TEMPERATURE
V+ = 5V
1
V+ = 3V
I+ (nA)
Q (pC)
2.0
10
8
NO, NC(OFF)
1.5
VCOM (V)
CHARGE INJECTION vs. COM VOLTAGE
V+ = +5V
6
V- =+3V
4
0.01
0.1
2
0
0.01
-2
0.001
5
20
35
50
65
0
80
1
2
3
4
5
TEMPERATURE (°C)
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE
45
tON
MAX4599 toc09
60
50
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
VCOM (V)
TEMPERATURE (°C)
40
35
40
tON/tOFF (ns)
-10
MAX4599 toc08
-40 -25
tON/tOFF (ns)
ON/OFF-LEAKAGE (nA)
0.5
VCOM (V)
VCOM (V)
1
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
MAX4599 toc05
0
MAX4599 toc06
20
tOFF
30
20
30
25
tON
20
15
tOFF
10
10
5
0
V+ = +5V
0
2.0
2.5
3.0
3.5
4.0
VSUPPLY (V)
4.5
5.0
5.5
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
TEMPERATURE (°C)
_______________________________________________________________________________________
5
MAX4599
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
1
MAX4599 toc10
-5
ON-RESPONSE
-15
MAX4599 toc11
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
FREQUENCY RESPONSE
RL = 600Ω
-25
VIN = 5VP-P
-35
THD + N (%)
LOSS (dB)
MAX4599
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
-45
-55
-65
0.1
VIN = 3VP-P
-75
-85
OFF-ISOLATION
-95
0.01
0.01
0.1
1
10
100 200
0.01
0.1
FREQUENCY (MHz)
1
10
100
FREQUENCY (kHz)
Pin Description
PIN
NAME
1
IN
POSITIVE SUPPLY
FUNCTION
D1
Digital Control Input
V+
2
V+
Positive Supply Voltage
3
GND
4
NC
5
COM
6
NO
Ground
Analog Switch Normally Closed
Analog Switch Common
Vg
NO
OR
NC
COM
Analog Switch Normally Open
GND
Applications Information
D2
Analog Signal Levels
Analog signals can range over the supply voltage (V+
to GND) with on-resistance changing very little over the
entire range (see Typical Operating Characteristics).
The MAX4599 is bidirectional, so the NO, NC, and
COM pins can be used either as inputs or outputs.
Power-Supply Sequencing and
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Always apply V+ before applying
analog signals or logic inputs, especially if the analog
or logic signals are not current limited. If this sequencing is not possible, and if the analog or logic inputs are
not current limited to < 20mA, add a small-signal diode
(D1) as shown in Figure 1. If the analog signal can dip
below GND, add D2. Adding protection diodes
6
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
reduces the analog signal range to a diode drop (about
0.7V) below V+ for D1 or to a diode drop above ground
for D2. The addition of diodes does not affect leakage.
On-resistance increases by a small amount at low supply voltages. Maximum supply voltage (V+) must not
exceed 6V.
Protection diodes D1 and D2 also protect against some
overvoltage situations. A fault voltage up to the
absolute maximum rating at an analog signal input
does not damage the device, even if the supply voltage
is below the signal voltage.
_______________________________________________________________________________________
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
MAX4599
V+
V+
COM
NO
OR NC
SWITCH
INPUT
LOGIC
INPUT
SWITCH
OUTPUT
50%
0
VOUT
RL
1k
CL
35pF
t OFF
IN
VOUT
GND
LOGIC
INPUT
SWITCH
OUTPUT
0.9 x V0UT
0.9 x VOUT
0
t ON
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
RL
VOUT = VCOM
RL + RON
(
t r < 20ns
t f < 20ns
+3V
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
)
Figure 2. Switching Time
V+
MAX4599
LOGIC
INPUT
V+
+3V
+3V
50%
0
NC
VOUT
COM
NO
RL
1k
IN
LOGIC
INPUT
CL
35pF
0.9 x VOUT
SWITCH
OUTPUT
(VOUT)
GND
0.9 x VOUT
tBBM
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 3. Break-Before-Make Interval
V+
∆VOUT
MAX4599
V+
RGEN
VOUT
COM
NC
OR NO
VOUT
IN
OFF
CL
V GEN
GND
ON
OFF
IN
VIN = V+
IN
OFF
ON
OFF
Q = (∆V OUT )(C L )
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 4. Charge Injection
_______________________________________________________________________________________
7
MAX4599
Test Circuits/Timing Diagrams
MAX4599
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
Test Circuits/Timing Diagrams (continued)
V+
10nF
V+
10nF
MAX4599
MAX4599
SIGNAL
GENERATOR 0dBm
COM
V+
V+
COM
IN
NC
OR NO
ANALYZER
GND
RL
Figure 5. Off-Isolation/On-Channel Bandwidth
0 OR
2.4V
IN
CAPACITANCE
METER
0 OR
2.4V
NC OR
NO
f = 1MHz
GND
Figure 6. Channel On/Off-Capacitance
Chip Information
TRANSISTOR COUNT: 89
Package Information
SC70, 6L.EPS
(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.)
8
_______________________________________________________________________________________
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
6L UDFN.EPS
A
COMMON DIMENSIONS
PIN 1
INDEX AREA
A
A1
D
E
L
L1
L2
b
e
E
A1
D
TOP VIEW
6
e
5
SIDE VIEW
4
L2
MIN.
0.64
-1.45
0.95
0.30
--0.17
--
NOM.
0.72
0.20
1.50
1.00
0.35
--0.20
0.50
MAX.
0.80
-1.55
1.05
0.40
0.08
0.05
0.23
--
b
PIN 1
0.075x45∞
b
L
3
L1
2
A
1
SECTION A-A
A
BOTTOM VIEW
PROPRIETARY INFORMATION
TITLE:
APPROVAL
DOCUMENT CONTROL NO.
21-0147
REV.
B
1
1
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9
© 2004 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
MAX4599
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.)