MAX4594 [MAXIM]
Low-Voltage, Single-Supply, 10з SPST CMOS Analog Switches; 低电压，单电源， 10Ω SPST CMOS模拟开关
| 型号： | MAX4594 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Low-Voltage, Single-Supply, 10з SPST CMOS Analog Switches |
| 文件： | 总8页 (文件大小：170K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1663; Rev 1; 7/00
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
General Description
____________________________Features
ꢀ Available in SC70-5 Package
ꢀ 10Ω max On-Resistance
ꢀ 1.5Ω max On-Resistance Flatness
ꢀ Fast Switching
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.
t
t
= 35ns max
ON
= 40ns max
OFF
These switches have 10Ω max on-resistance (R ),
ON
ꢀ 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
with 1.5Ω max R
flatness over the analog signal
ON
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.
ꢀ 0.05% THD
Ordering Information
________________________Applications
Cellular Phones
PIN-
PACKAGE
TOP
MARK
PART
TEMP. RANGE
Battery-Operated Equipment
Audio and Video Signal Routing
Communications Circuits
PCMCIA Cards
MAX4594EXK-T -40°C to +85°C
MAX4595EXK-T -40°C to +85°C
MAX4596EXK-T -40°C to +85°C
MAX4597EXK-T -40°C to +85°C
5 SC70-5
5 SC70-5
5 SC70-5
5 SC70-5
AAH
AAI
AAJ
AAK
DSL Modems
Pin Configurations/Functional Diagrams/Truth Table
TOP VIEW
1
2
3
5
4
1
2
3
5
4
1
5
4
1
2
3
5
4
IN
COM
GND
V+
IN
COM
GND
V+
V+
IN
V+
IN
COM
COM
NC
2
3
NO
NO
NC
GND
GND
MAX4594
MAX4595
MAX4596
MAX4597
SWITCH STATE
INPUT
MAX4594/MAX4596
MAX4595/MAX4597
OFF
ON
ON
OFF
LOW
HIGH
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.
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND)
Continuous Power Dissipation (T = +70°C)
A
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
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 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 = +2.4V, V = +0.8V, T = T
to T
, unless otherwise noted. Typical values are at V+ = +5V,
MAX
I
IL
A
MIN
H
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
V
, V
NC
,
COM NO
Analog Signal Range
0
V+
V
V
R
V+ = 4.5V, V
or
NO,
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
= +25°C
6.5
0.5
10
12
1.5
2
On-Resistance
V
NC
= 3.5V;
Ω
ON
= T
to T
MIN
MAX
MAX
MAX
MAX
MAX
I
= 10mA
COM
V
NO
or V = 1.5V, 2.5V,
NC
= +25°C
= T to T
On-Resistance Flatness
(Note 4)
R
3.5V; V+ = 4.5V;
= 10mA
Ω
FLAT(ON)
MIN
I
COM
V+ = 5.5V;
= +25°C
= T to T
-0.5
-5
0.01
0.01
0.01
0.5
5
NO or NC Off-Leakage
Current
I
I
NO(OFF)
NC(OFF)
V
V
= 1V, 4.5V;
nA
nA
nA
COM
NO
MIN
or V
= 4.5V, 1V
NC
V+ = 5.5V;
= +25°C
= T to T
-0.5
-5
0.5
5
COM Off-Leakage Current
COM On-Leakage Current
I
V
V
= 1V, 4.5V;
COM(OFF)
COM
NO
MIN
or V
= 4.5V, 1V
NC
V+ = 5.5V; V
= 1V;
= 1V,
COM
= +25°C
= T to T
-1
1
I
4.5V; V
or V
NO NC
COM(ON)
-10
10
MIN
4.5V, or floating
DIGITAL I/O
Input Logic High
Input Logic Low
Input Logic Current
DYNAMIC
V
2.4
-1
V
V
IH
V
0.8
1
IL
I
, I
IH IL
V
V
= V+, 0
0.03
20
µA
IN
or V = 3V,
NO
NC
T
A
T
A
T
A
T
A
= +25°C
35
45
40
50
Turn-On Time
Turn-Off Time
t
R = 300Ω, C = 35pF,
Figure 3
ns
ON
L
L
= T
to T
MIN
MAX
MAX
V
NO
or V = 3V,
NC
= +25°C
= T to T
25
t
R = 300Ω, C = 35pF,
Figure 3
ns
OFF
L
L
MIN
On-Channel -3dB
Bandwidth
Signal = 0dBm, 50Ω in and
out, Figure 4
BW
T
A
= +25°C
300
MHz
2
_______________________________________________________________________________________
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
ELECTRICAL CHARACTERISTICS—+5V Supply (continued)
(V+ = +4.5V to +5.5V, V = +2.4V, V = +0.8V, T = T
to T
, unless otherwise noted. Typical values are at V+ = +5V,
MAX
I
IL
A
MIN
H
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Charge Injection
(Note 5)
V
or V = 0, C = 1nF,
NO NC L
Q
T
= +25°C
2
5
pC
A
Figure 2
or V = 1V ,
RMS
MAX4594/
80
83
8
V
NO
NC
MAX4595
Off-Isolation
(Note 6)
T
A
=
V
R = 50Ω, C = 5pF,
f = 1MHz, Figure 4
dB
ISO
L
L
+25°C
MAX4596/
MAX4597
C
C
,
V
NO
Figure 5
or V = 0, f = 1MHz,
NC
NO(OFF)
NC(OFF)
NO or NC Off-Capacitance
COM Off-Capacitance
COM On-Capacitance
T
A
T
A
T
A
T
A
= +25°C
pF
pF
pF
%
V
COM
= 0, f = 1MHz,
C
= +25°C
= +25°C
= +25°C
8
COM(OFF)
Figure 5
V
COM
= 0, f = 1MHz,
C
20
COM(ON)
Figure 5
Total Harmonic Distortion
Plus Noise
V = 5Vp-p, R = 600Ω,
f = 20Hz to 20kHz
L
THD
0.05
POWER SUPPLY
Power-Supply Range
V+ Supply Current
V+
I+
2.0
-1
5.5
1
V
V+ = 5.5V, V = 0 or V+
T
A
= T
to T
MAX
µA
IN
MIN
ELECTRICAL CHARACTERISTICS—+3V Supply
(V+ = +2.7V to +3.6V, V = +2.0V, V = +0.8V, T = T
to T
, unless otherwise noted. Typical values are at V+ = +3.0V,
MAX
A
MIN
IH
IL
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
V
, V
NC
,
COM NO
Analog Signal Range
0
V+
V
V
R
T
T
= +25°C
10
20
25
A
V
or V
= 1.5V, I
=
COM
NO
NC
On-Resistance
Ω
ON
10mA, V+ = 2.7V
= T
to T
MAX
A
MIN
DIGITAL I/O
Input Logic High
Input Logic Low
Input Logic Current
DYNAMIC
V
2.0
-1
V
V
IH
V
0.8
1
IL
I
, I
IH IL
V
V
= V+, 0
0.03
25
µA
IN
T
T
T
T
= +25°C
45
55
50
60
A
A
A
A
or V = 2V, R =
NO
NC
L
Turn-On Time
Turn-Off Time
ns
ns
t
ON
300Ω, C = 35pF, Figure 3
L
= T
to T
MIN
MAX
MAX
= +25°C
= T to T
30
V
NO
or V = 2V, R =
NC L
t
OFF
Q
300Ω, C = 35pF, Figure 3
L
MIN
Charge Injection
(Note 5)
V
or V = 0, C = 1nF,
NO NC L
T
A
= +25°C
2
4
pC
Figure 2
_______________________________________________________________________________________
3
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
ELECTRICAL CHARACTERISTICS—+3V Supply (continued)
(V+ = +2.7V to +3.6V, V = +2.0V, V = +0.8V, T = T
to T
, unless otherwise noted. Typical values are at V+ = +3.0V,
MAX
A
MIN
IH
IL
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
V+ = 3.6V, V = 0 or V+
MIN
TYP
MAX
UNITS
POWER SUPPLY
I+
T
A
= T
to T
MAX
-1
1
V+ Supply Current
µA
MIN
IN
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 (V
/ V ), V
= output, V = input to off switch.
NO
10 COM
NO
COM
Typical Operating Characteristics
(V+ = +5V, T = +25°C, unless otherwise noted.)
A
ON-RESISTANCE vs. COM VOLTAGE
(V+ = 3V)
ON-RESISTANCE vs. COM VOLTAGE
(V+ = 5V)
ON-RESISTANCE vs. COM VOLTAGE
20
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
0
T
= +85°C
T = +25°C
A
T
= +85°C
T = +25°C
A
A
A
V+ = 2V
18
16
14
12
10
8
V+ = 3V
T
A
= 0°C
T
A
= -40°C
V+ = 5V
6
T
A
= -40°C
T
A
= 0°C
4
2
0
0
1
2
3
4
5
0
0.5
1.0
1.5
2.0
2.5
3.0
0
1
2
3
4
5
COM VOLTAGE (V)
COM VOLTAGE (V)
COM VOLTAGE (V)
CHARGE INJECTION
vs. COM VOLTAGE
ON/OFF-LEAKAGE CURRENT vs.
TEMPERATURE
SUPPLY CURRENT vs. TEMPERATURE
1
4
3
10
1
V+ = +5V
V+ = 5V
I
COM(ON)
2
0.1
V+ = +5V
0.1
V+ = 3V
1
NO, NC (OFF)
V+ = +3V
0
0.01
0.001
0.0001
0.01
-1
-2
-3
0.001
-40 -25 -10
5
20 35 50 65 80
-40
-15
10
35
60
85
0
1.0
2.0
3.0
4.0
5.0
TEMPERATURE (°C)
TEMPERATURE (°C)
COM VOLTAGE (V)
4
_______________________________________________________________________________________
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
Typical Operating Characteristics (continued)
(V+ = +5V, T = +25°C, unless otherwise noted.)
A
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
LOGIC THRESHOLD vs. SUPPLY VOLTAGE
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
30
28
26
24
22
20
18
16
14
12
10
40
35
30
25
20
15
10
5
t
OFF
V
IH
t
OFF
t
ON
V
IL
t
ON
2.0
2.5
3.0
3.5
4.0
4.5
5.0
-40
-15
10
35
60
85
2.0
2.5
3.0
3.5
4.0
4.5
5.0
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
FREQUENCY RESPONSE
0
-10
-30
0.1
0.01
ON-LOSS
-50
-70
-90
OFF-ISOLATION
0.001
0.0001
-110
0.01
0.1
1
10
100
1000
0.01
0.1
1
10
100
FREQUENCY (MHz)
FREQUENCY (kHz)
Pin Description
PIN
NAME
FUNCTION
MAX4594
MAX4595
MAX4596
MAX4597
1
2
1
—
3
2
4
2
—
3
COM
NO
GND
IN
Analog Switch, Common
Analog Switch, Normally Open
Ground
3
3
4
4
1
1
Digital Control Input
5
5
5
5
V+
Positive Supply-Voltage
Analog Switch, Normally Closed
—
2
—
4
NC
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
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+
D1
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 out-
puts.
NO
OR
NC
COM
V
Power-Supply Sequencing and
Overvoltage Protection
g
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 sequenc-
ing 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 sup-
ply voltages. Maximum supply voltage (V+) must not
exceed 6V.
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 dam-
age the device, even if the supply voltage is below the sig-
nal voltage.
Test Circuits/Timing Diagrams
V+
V+
V+
NO
V
IN
V
NO
or V = 0
NC
or
NC
0
MAX4594
MAX4595
MAX4596
MAX4597
MAX4595/MAX4597
MAX4594/MAX4596
V
IN
COM
IN
V
OUT
GND
∆V
OUT
V
OUT
C
L
1000pF
50Ω
∆V IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
OUT
ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = ∆V
x C
L
OUT
Figure 2. Charge Injection
_______________________________________________________________________________________
6
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
Test Circuits/Timing Diagrams (continued)
V+
V+
t ≤ 5ns
f
r
V+
0
t ≤ 5ns
50%
V
IN
NO
V
NO
MAX4594
MAX4596
V
OUT
V
IN
90%
90%
COM
IN
V
OUT
GND
CL
35pF
RL
300Ω
50Ω
0
t
t
OFF
ON
V+
V+
V+
0
50%
V
IN
NC
V
NC
MAX4595
MAX4597
V
OUT
V
IN
90%
90%
COM
IN
V
OUT
GND
CL
35pF
RL
300Ω
50Ω
0
t
t
ON
OFF
Figure 3. Switching Times
V+
V+
10nF
NETWORK
ANALYZER
V+
V+
10nF
V
IN
50Ω
50Ω
NO
OR
NC
MAX4594
MAX4595
MAX4596
MAX4597
MAX4594
MAX4595
MAX4596
MAX4597
GND
COM
V
OUT
V+
MEAS
REF
COM
IN
IN
0 OR
2.4V
50Ω
50Ω
CAPACITANCE
METER
NC OR
NO
f = 1MHz
V
V
OUT
GND
OFF-ISOLATION = 20log
ON-LOSS = 20log
IN
V
OUT
V
IN
Figure 4. Off-Isolation and On-Channel Bandwidth
Figure 5. Channel On-/Off-Capacitance
_______________________________________________________________________________________
7
Low-Voltage, Single-Supply,
10Ω SPST CMOS Analog Switches
________________________________________________________Package Information
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
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© 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
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