MAXIM MAX4594EXK-T

19-1663; Rev 1; 7/00
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
____________________________Features
♦ Available in SC70-5 Package
♦ 10Ω max On-Resistance
♦ 1.5Ω max On-Resistance Flatness
♦ Fast Switching
tON = 35ns max
tOFF = 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
Ordering Information
________________________Applications
Cellular Phones
TEMP. RANGE
PINPACKAGE
MAX4594EXK-T
-40°C to +85°C
5 SC70-5
AAH
MAX4595EXK-T
MAX4596EXK-T
MAX4597EXK-T
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
5 SC70-5
5 SC70-5
5 SC70-5
AAI
AAJ
AAK
Battery-Operated Equipment
Audio and Video Signal Routing
Communications Circuits
PCMCIA Cards
TOP
MARK
PART
DSL Modems
Pin Configurations/Functional Diagrams/Truth Table
TOP VIEW
COM 1
5
V+
NO 2
GND 3
COM 1
5
V+
4
IN
GND 3
5
V+
COM 2
NC 2
MAX4594
IN 1
MAX4595
INPUT
LOW
HIGH
4
IN
GND 3
IN 1
5
V+
4
NC
COM 2
MAX4596
4
NO
GND 3
MAX4597
SWITCH STATE
MAX4595/MAX4597
MAX4594/MAX4596
ON
OFF
OFF
ON
SWITCHES SHOWN FOR LOGIC "O" INPUT.
________________________________________________________________ Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX4594–MAX4597
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-isolation available.
These switches have 10Ω max on-resistance (RON),
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 packaged in an ultra-small 5-pin SC70.
MAX4594–MAX4597
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
ABSOLUTE MAXIMUM RATINGS
Continuous Power Dissipation (TA = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C).............247mW
Operating Temperature Range
MAX459_EXK .................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
(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
Note 1: Voltages exceeding V+ or GND on any signal terminal 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— +5V Supply
(V+ = +4.5V to +5.5V, VIH = +2.4V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +5V,
TA = +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V+
V
ANALOG SWITCH
Analog Signal Range
On-Resistance
VCOM, VNO,
VNC
RON
0
V+ = 4.5V, VNO, or
VNC = 3.5V;
ICOM = 10mA
VNO or VNC = 1.5V, 2.5V,
3.5V; V+ = 4.5V;
ICOM = 10mA
On-Resistance Flatness
(Note 4)
RFLAT(ON)
NO or NC Off-Leakage
Current
INO(OFF)
INC(OFF)
V+ = 5.5V;
VCOM = 1V, 4.5V;
VNO or VNC = 4.5V, 1V
ICOM(OFF)
V+ = 5.5V;
VCOM = 1V, 4.5V;
VNO or VNC = 4.5V, 1V
COM Off-Leakage Current
COM On-Leakage Current
ICOM(ON)
V+ = 5.5V; VCOM = 1V;
4.5V; VNO or VNC = 1V,
4.5V, or floating
6.5
TA = +25°C
TA = TMIN to TMAX
12
TA = +25°C
0.5
TA = TMIN to TMAX
TA = +25°C
10
1.5
2
-0.5
0.01
Ω
Ω
0.5
nA
TA = TMIN to TMAX
TA = +25°C
-5
-0.5
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
Input Logic Current
IIH, IIL
2.4
VIN = V+, 0
-1
V
0.8
V
0.03
1
µA
20
35
DYNAMIC
Turn-On Time
Turn-Off Time
On-Channel -3dB
Bandwidth
2
tON
tOFF
BW
VNO or VNC = 3V,
RL = 300Ω, CL = 35pF,
Figure 3
VNO or VNC = 3V,
RL = 300Ω, CL = 35pF,
Figure 3
Signal = 0dBm, 50Ω in and
out, Figure 4
TA = +25°C
ns
TA = TMIN to TMAX
TA = +25°C
45
25
40
ns
TA = TMIN to TMAX
TA = +25°C
50
300
_______________________________________________________________________________________
MHz
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
(V+ = +4.5V to +5.5V, VIH = +2.4V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +5V,
TA = +25°C.) (Notes 2, 3)
PARAMETER
Charge Injection
(Note 5)
SYMBOL
Q
Off-Isolation
(Note 6)
VISO
CONDITIONS
MIN
VNO or VNC = 0, CL = 1nF,
Figure 2
TA = +25°C
VNO or VNC = 1VRMS,
RL = 50Ω, CL = 5pF,
f = 1MHz, Figure 4
TA =
+25°C
TYP
MAX
UNITS
2
5
pC
MAX4594/
MAX4595
80
MAX4596/
MAX4597
83
dB
NO or NC Off-Capacitance
CNO(OFF),
CNC(OFF)
VNO or VNC = 0, f = 1MHz,
Figure 5
TA = +25°C
8
pF
COM Off-Capacitance
CCOM(OFF)
VCOM = 0, f = 1MHz,
Figure 5
TA = +25°C
8
pF
COM On-Capacitance
CCOM(ON)
VCOM = 0, f = 1MHz,
Figure 5
TA = +25°C
20
pF
V = 5Vp-p, RL = 600Ω,
f = 20Hz to 20kHz
TA = +25°C
0.05
%
V+ = 5.5V, VIN = 0 or V+
TA = TMIN to TMAX
Total Harmonic Distortion
Plus Noise
THD
POWER SUPPLY
Power-Supply Range
V+
V+ Supply Current
I+
2.0
5.5
V
-1
1
µA
ELECTRICAL CHARACTERISTICS— +3V Supply
(V+ = +2.7V to +3.6V, VIH = +2.0V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V,
TA = +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V+
V
ANALOG SWITCH
Analog Signal Range
On-Resistance
VCOM, VNO,
VNC
RON
0
VNO or VNC = 1.5V, ICOM =
10mA, V+ = 2.7V
TA = +25°C
10
TA = TMIN to TMAX
20
25
Ω
DIGITAL I/O
Input Logic High
VIH
Input Logic Low
VIL
Input Logic Current
IIH, IIL
2.0
VIN = V+, 0
-1
V
0.8
V
0.03
1
µA
25
45
DYNAMIC
Turn-On Time
tON
VNO or VNC = 2V, RL =
300Ω, CL = 35pF, Figure 3
TA = +25°C
Turn-Off Time
tOFF
VNO or VNC = 2V, RL =
300Ω, CL = 35pF, Figure 3
TA = +25°C
Q
VNO or VNC = 0, CL = 1nF,
Figure 2
Charge Injection
(Note 5)
TA = TMIN to TMAX
55
30
TA = TMIN to TMAX
TA = +25°C
50
60
2
4
ns
ns
pC
_______________________________________________________________________________________
3
MAX4594–MAX4597
ELECTRICAL CHARACTERISTICS— +5V Supply (continued)
ELECTRICAL CHARACTERISTICS— +3V Supply (continued)
(V+ = +2.7V to +3.6V, VIH = +2.0V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V,
TA = +25°C.) (Notes 2, 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
1
µA
POWER SUPPLY
I+
V+ Supply Current
V+ = 3.6V, VIN = 0 or V+
TA = TMIN to TMAX
-1
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 = 20log10 (VCOM / VNO), VCOM = output, VNO = input to off switch.
Typical Operating Characteristics
(V+ = +5V, TA = +25°C, unless otherwise noted.)
10
RON (Ω)
V+ = 3V
8
V+ = 5V
6
7
4
6
3
TA = 0°C
1
2
3
4
0
0
5
1
2
3
COM VOLTAGE (V)
COM VOLTAGE (V)
ON/OFF-LEAKAGE CURRENT vs.
TEMPERATURE
CHARGE INJECTION
vs. COM VOLTAGE
ICOM(ON)
0.1
NO, NC (OFF)
0.01
0.5
1.0
1.5
2.0
2.5
3.0
SUPPLY CURRENT vs. TEMPERATURE
3
V+ = 5V
2
V+ = 3V
1
0
5
COM VOLTAGE (V)
4
CHARGE INJECTION (pC)
V+ = +5V
4
0
-1
10
1
SUPPLY CURRENT (nA)
1
TA = -40°C
2
0
MAX4594-97 toc04
1
TA = -40°C
1
0
TA = 0°C
3
4
0
5
4
2
2
TA = +25°C
8
5
MAX4594–97 toc 05
RON (Ω)
12
TA = +85°C
9
MAX4594–97 toc 03
6
14
10
MAX4594–97 toc 06
16
TA = +25°C
TA = +85°C
RON (Ω)
V+ = 2V
MAX4594–97 toc 02
7
MAX4594–97 toc 01
20
18
ON-RESISTANCE vs. COM VOLTAGE
(V+ = 3V)
ON-RESISTANCE vs. COM VOLTAGE
(V+ = 5V)
ON-RESISTANCE vs. COM VOLTAGE
ON/OFF-LEAKAGE (nA)
MAX4594–MAX4597
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
V+ = +5V
0.1
V+ = +3V
0.01
0.001
-2
0.001
-10
5
20
35
50
TEMPERATURE (°C)
4
0.0001
-3
-40 -25
65
80
0
1.0
2.0
3.0
COM VOLTAGE (V)
4.0
5.0
-40
-15
10
35
TEMPERATURE (°C)
_______________________________________________________________________________________
60
85
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
1.4
30
tON/tOFF (ns)
VIH
1.2
1.0
VIL
0.8
0.6
tOFF
26
24
tOFF
25
20
28
MAX4594–97 toc 09
35
tON/tOFF (ns)
1.6
30
MAX4594-97 toc 08
1.8
LOGIC THRESHOLD (V)
40
MAX4594–97 toc 07
2.0
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
LOGIC THRESHOLD vs. SUPPLY VOLTAGE
tON
22
tON
20
18
16
15
0.4
14
10
0.2
0
12
10
5
2.5
3.0
3.5
4.0
4.5
5.0
2.0
2.5
3.0
SUPPLY VOLTAGE (V)
3.5
4.0
-40
5.0
-15
35
60
85
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
0.1
MAX4594–97 toc 10
0
ON-LOSS
-10
THD + N (%)
-30
-50
10
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
FREQUENCY RESPONSE
LOSS (dB)
4.5
OFF-ISOLATION
-70
MAX4594–97 toc 11
2.0
0.01
0.001
-90
0.0001
-110
0.01
0.1
1
10
100
1000
0.01
FREQUENCY (MHz)
0.1
1
10
100
FREQUENCY (kHz)
Pin Description
PIN
NAME
FUNCTION
MAX4594
MAX4595
MAX4596
MAX4597
1
1
2
2
2
—
4
—
NO
3
3
3
3
GND
4
4
1
1
IN
Digital Control Input
5
5
5
5
V+
Positive Supply-Voltage
—
2
—
4
NC
Analog Switch, Normally Closed
COM
Analog Switch, Common
Analog Switch, Normally Open
Ground
Note: NO, NC, and COM pins are identical and interchangeable. Any pin may be considered as an input or an output; signals pass
equally well in both directions.
_______________________________________________________________________________________
5
MAX4594–MAX4597
Typical Operating Characteristics (continued)
(V+ = +5V, TA = +25°C, unless otherwise noted.)
MAX4594–MAX4597
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
Applications Information
POSITIVE SUPPLY
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 MAX4594–MAX4597 are bidirectional, so the NO,
NC, and COM pins can be used either as inputs or outputs.
D1
V+
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
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.
Vg
NO
OR
NC
COM
GND
D2
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
Chip Information
TRANSISTOR COUNT: 50
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.
Test Circuits/Timing Diagrams
V+
V+
VIN
IN
MAX4594
MAX4595
MAX4596
MAX4597 COM
GND
50Ω
NO
or
NC
V+
VNO or VNC = 0
VIN
0
MAX4594/MAX4596
MAX4595/MAX4597
VOUT
CL
1000pF
∆VOUT
VOUT
∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = ∆VOUT x CL
Figure 2. Charge Injection
6
_______________________________________________________________________________________
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
V+
tr ≤ 5ns
tf ≤ 5ns
V+
V+
NO
VIN
IN
50%
VIN
0
VNO
MAX4594
MAX4596 COM
GND
VOUT
90%
CL
35pF
RL
300Ω
50Ω
90%
VOUT
0
tOFF
tON
V+
V+
NC
VIN
IN
50%
VIN
V+
0
VNC
MAX4595
MAX4597 COM
GND
VOUT
90%
CL
35pF
RL
300Ω
50Ω
90%
VOUT
0
tON
tOFF
Figure 3. Switching Times
V+ 10nF
V+
V+
NO
OR
NC
MAX4594
MAX4595
MAX4596
COM
IN
MAX4597
GND
VIN
NETWORK
ANALYZER
50Ω
50Ω
V+
10nF
MAX4594
MAX4595
MAX4596
MAX4597
V+
VOUT
COM
MEAS
50Ω
REF
IN
50Ω
CAPACITANCE
METER
V
OFF-ISOLATION = 20log OUT
VIN
ON-LOSS = 20log
Figure 4. Off-Isolation and On-Channel Bandwidth
f = 1MHz
0 OR
2.4V
NC OR
NO
GND
VOUT
VIN
Figure 5. Channel On-/Off-Capacitance
_______________________________________________________________________________________
7
MAX4594–MAX4597
Test Circuits/Timing Diagrams (continued)
________________________________________________________Package Information
SC70, 5L.EPS
MAX4594–MAX4597
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
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.
8 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 2000 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.