MAX4501CSA+ [MAXIM]
SPST, 1 Func, 1 Channel, CMOS, PDSO8, SO-8;
| 型号： | MAX4501CSA+ |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | SPST, 1 Func, 1 Channel, CMOS, PDSO8, SO-8 开关 |
| 文件： | 总8页 (文件大小：315K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1062; Rev 1; 11/99
Low-Voltage, SPST, CMOS Analog Switches
_________________General Description
_____________________________Features
The MAX4501/MAX4502 are single-pole/single-throw
(SPST), low-voltage, single-supply, CMOS analog
switches. The MAX4501 is normally open (NO). The
MAX4502 is normally closed (NC).
ꢀ Available in SOT23-5 and SC70-5 Packages
ꢀ +2V to +12V Single-Supply Operation
ꢀ Guaranteed On-Resistance: 250Ω at +5V
ꢀ Guaranteed Low Off-Leakage Current
1nA at +25°C
10nA at +85°C
ꢀ Guaranteed Low On-Leakage Current
2nA at +25°C
These CMOS switches can operate continuously with a
single supply between +2V and +12V. Each switch can
handle Rail-to-Rail® analog signals. The off-leakage
current is only 1nA at +25°C or 10nA at +85°C.
The digital input has 0.8V and 2.4V logic thresholds,
ensuring TTL/CMOS-logic compatibility when using a
single +5V supply.
20nA at +85°C
ꢀ Low Charge Injection: 10pC
ꢀ Fast Switching Speed: t
= 75ns, t
= 50ns
ON
OFF
ꢀ TTL/CMOS-Logic Compatible with +5V Supply
_________________________Applications
________________Ordering Information
Battery-Operated Equipment
PIN-
PACKAGE
TOP
MARK
PART
TEMP. RANGE
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Communications Circuits
PCMCIA Cards
MAX4501CUK-T
MAX4501CSA
MAX4501CPA
MAX4501C/D
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
5 SOT23-5
8 SO
AAAA
—
8 Plastic DIP
Dice*
—
—
MAX4501EXK-T -40°C to +85°C
MAX4501EUK-T -40°C to +85°C
5 SC70-5
5 SOT23-5
8 SO
AAE
AAAA
—
Cellular Phones
MAX4501ESA
MAX4501EPA
MAX4501MJA
-40°C to +85°C
-40°C to +85°C
Modems
8 Plastic DIP
—
-55°C to +125°C 8 CERDIP**
—
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
**Contact factory for availability.
_______________________Pin Configurations/Functional Diagrams/Truth Table
TOP VIEW
1
2
3
5
V+
COM
NC
1
2
3
4
8
7
6
5
NO
1
2
3
4
8
7
6
5
NC
1
2
3
5
COM
N.C.
N.C.
V+
COM
N.C.
N.C.
V+
COM
NO
V+
GND
IN
GND
IN
N.C.
N.C.
MAX4501
MAX4502
SO/DIP
INPUT
GND
4
IN
GND
4
IN
MAX4502
MAX4501
SO/DIP
SC70-5/SOT23-5
SC70-5/SOT23-5
SWITCH STATE
MAX4501
MAX4502
LOW
HIGH
OFF
ON
ON
OFF
N.C. = NOT INTERNALLY CONNECTED
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Low-Voltage, SPST, CMOS Analog Switches
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND)
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ...727mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C)........640mW
Operating Temperature Ranges
V+...........................................................................-0.3V to +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
ESD per Method 3015.7 ..................................................>2000V
MAX4501C_ _/MAX4502C_ _ .............................0°C to +70°C
MAX4501E_ _/MAX4502E_ _...........................-40°C to +85°C
MAX4501MJA/MAX4502MJA ........................-55°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Continuous Power Dissipation (T = +70°C)
A
5-Pin SC70-5 (derate 2.5mW/°C above +70°C)...........200mW
5-Pin SOT23-5 (derate 7.1mW/°C above +70°C) ........571mW
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, V
= 2.4V, V
= 0.8V, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
MAX A
INH
INL
A
MIN
PARAMETER
ANALOG SWITCH
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
,
COM
, V
Analog Signal Range
0
V+
V
V
NO NC
T
T
T
= +25°C
90
250
350
1
A
A
A
COM to NO or NC
On-Resistance
V
I
= 3.5V,
= 1mA
COM
COM
R
Ω
ON
= T
to T
MAX
MIN
= +25°C
-1
-10
-100
-1
0.01
V+ = 5.5V,
NO or NC Off-Leakage Current
(Notes 3, 4)
I
I
NO(OFF),
NC(OFF)
V
COM
V
NO
= 1V,
C, E
10
100
1
nA
nA
nA
T
A
= T
MIN
MAX
or V
= 4.5V
= 4.5V
NC
to T
M
T
T
= +25°C
0.01
0.01
A
V+ = 5.5V,
COM Off-Leakage Current
(Notes 3, 4)
I
V
COM
V
NO
= 1V,
C, E
M
-10
-100
-2
10
100
2
COM(OFF)
= T
MIN
MAX
A
or V
NC
to T
T
T
= +25°C
A
COM On-Leakage Current
(Notes 3, 4)
V+ = 5.5V,
I
C, E
M
-20
-200
20
200
COM(ON)
= T
MIN
MAX
A
V
COM
= 1V, 4.5V
to T
DIGITAL I/O
Input Logic High
V
2.4
0
V+
0.8
1
V
V
INH
Input Logic Low
V
INL
Input Current Logic High or Low
I
, I
V
= V+, 0
-1
0.03
16
µA
INH INL
IN
SWITCH DYNAMIC CHARACTERISTICS
V
V
= V
= 1.5V,
L
T
A
T
A
T
A
T
A
= +25°C
75
150
50
NO
IN
NC
Turn-On Time
Turn-Off Time
t
= 3V, R = 1kΩ,
ns
ns
ON
= T
to T
MAX
C = 35pF, Figure 1
MIN
L
V
V
= V
= 1.5V,
L
= +25°C
= T to T
10
NO
IN
NC
t
= 3V, R = 1kΩ,
OFF
150
C = 35pF, Figure 1
MIN
MAX
L
2
_______________________________________________________________________________________
Low-Voltage, 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 T = +25°C.) (Note 2)
MAX A
INH
INL
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SWITCH DYNAMIC CHARACTERISTICS (continued)
C = 1nF, V
Figure 2
= 0, R = 0Ω, T = +25°C,
L
NO
S
A
Charge Injection (Note 5)
Off-Isolation
Q
1
< -100
3
10
pC
dB
pF
R = 50Ω, C = 15pF, V
= 1V
,
RMS
L
L
NO
V
ISO
f = 100kHz, T = +25°C, Figure 3
A
C
C
,
NO(OFF)
NC(OFF)
NO or NC Off-Capacitance
f = 1MHz, Figure 4
COM Off-Capacitance
COM On-Capacitance
POWER SUPPLY
C
f = 1MHz, Figure 4
f = 1MHz, Figure 4
3
8
pF
pF
COM(OFF)
C
COM(ON)
T
T
= +25°C
-1
1
A
V+ Supply Current
I+
V
IN
= 0 or V+
µA
= T
to T
-10
10
A
MIN
MAX
ELECTRICAL CHARACTERISTICS—+12V Supply
(V+ = +11.4V to +12.6V, V
PARAMETER
= 5.0V, V
= 0.8V, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
INH
INL
A
MIN
MAX A
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
V
,
COM
, V
Analog Signal Range
0
V+
V
V
NO NC
T
T
T
= +25°C
40
160
200
5
A
A
A
COM to NO or NC
On-Resistance
V
I
= 10V,
= 1mA
COM
COM
R
Ω
ON
= T
to T
MAX
MIN
= +25°C
-5
-50
V
V
= 10V,
COM
NO
NO or NC Off-Leakage Current
(Notes 3, 4)
I
I
,
NO(OFF)
NC(OFF)
or V
= 1V,
C, E
50
nA
nA
nA
NC
T
A
= T
MIN
MAX
V+ = +12.6V
to T
M
-500
-5
500
5
T
A
= +25°C
V
V
= 10V,
COM
NO
COM Off-Leakage Current
(Notes 3, 4)
I
or V
= 1V,
C, E
M
-50
50
COM(OFF)
NC
T
A
= T
MIN
MAX
V+ = +12.6V
V = 10V,
COM
to T
-500
-10
500
10
T
T
= +25°C
A
COM On-Leakage Current
(Notes 3, 4)
I
C, E
M
-100
-1000
100
1000
COM(ON)
= T
MIN
MAX
A
V+ = +12.6V
to T
DIGITAL I/O
Input Logic High
V
5.0
0
V+
0.8
1
V
V
INH
Input Logic Low
V
INL
Input Current Logic High or Low
POWER SUPPLY
I
, I
V
IN
= 0 or V+
-1
0.03
µA
INH INL
T
T
= +25°C
-1
1
A
V+ Supply Current
I+
IN = 0 or V+
µA
= T
to T
-10
10
A
MIN
MAX
_______________________________________________________________________________________
3
Low-Voltage, SPST, CMOS Analog Switches
ELECTRICAL CHARACTERISTICS—+3V Supply
(V+ = +3.0V to +3.6V, V
= 2.4V, V
= 0.8V, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
MAX A
INH
INL
A
MIN
PARAMETER
ANALOG SWITCH
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
,
COM
, V
Analog Signal Range
0
V+
V
V
NO NC
T
T
= +25°C
175
600
800
A
COM to NO or NC
On-Resistance
V
I
= 1.5V,
= 0.1mA
COM
COM
R
ON
Ω
= T
to T
MAX
A
MIN
DIGITAL I/O
Input Logic High
V
2.4
0
V+
0.8
V
V
INH
Input Logic Low
V
INL
Input Current Logic High or Low
I
, I
V
= 0 or V+
-1.00
0.03
45
1.00
µA
INH INL
IN
SWITCH DYNAMIC CHARACTERISTICS
V
V
= V
= 1.5V,
T
A
T
A
T
A
T
A
= +25°C
300
500
125
NO
IN
NC
Turn-On Time
(Note 5)
t
= 3V, R = 1kΩ,
ns
ON
L
Figure 1
= T
to T
MIN
MAX
MAX
V
V
= V
= 1.5V,
= +25°C
= T to T
10
NO
IN
NC
Turn-Off Time
(Note 5)
t
= 3V, R = 1kΩ,
ns
OFF
L
Figure 1
175
10
MIN
Charge Injection (Note 5)
Q
C = 1nF, T = +25°C, Figure 2
0.5
pC
L
A
POWER SUPPLY
T
T
= +25°C
-1
1
A
V+ Supply Current
I+
IN = 0 or V+
µA
= T
to T
-10
10
A
MIN
MAX
Note 2: Algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3: Leakage parameters are 100% tested at maximum-rated hot operating temperature, and are guaranteed by correlation
at +25°C.
Note 4: SOT and SC70 packaged parts are 100% tested at +25°C. Limits at maximum and minimum rated temperature are guaran-
teed by design and correlation limits at +25°C.
Note 5: Guaranteed, not production tested.
4
_______________________________________________________________________________________
Low-Voltage, SPST, CMOS Analog Switches
__________________________________________Typical Operating Characteristics
(V+ = +5V, GND = 0, T = +25°C, unless otherwise noted.)
A
OFF-LEAKAGE
vs. TEMPERATURE
ON-RESISTANCE
ON-RESISTANCE
vs. V
AND TEMPERATURE
vs. V
COM
COM
1000
100
10
1000
100
10
250
200
150
100
50
V+ = 5.5V
V+ = 2V
V+ = 3V
V+ = 5V
T
= +125°C
A
T
= +85°C
A
V+ = 9V
1
V+ = 12V
T
= +25°C
A
T
= -55°C
1
A
0.1
0
-50 -25
0
25
50
75 100 125
0
2
3
4
5
0
2
4
6
8
10
12
TEMPERATURE (°C)
V
(V)
V
(V)
COM
COM
ON-LEAKAGE
vs. TEMPERATURE
FREQUENCY RESPONSE
MAX4501-05
0
10
0
10,000
1000
V+ = 5.5V
-10
-20
-30
-40
ON-PHASE
-10
-20
-30
ON-LOSS
100
-50
-60
-70
-80
-40
-50
-60
-70
10
1
OFF-ISOLATION
V+ = +5V
50Ω IN/OUT
0.1
-90
-80
-50 -25
0
25
50
75 100 125
0.1
1
10
100
1000
TEMPERATURE (°C)
FREQUENCY (MHz)
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
SWITCHING TIME
vs. SUPPLY VOLTAGE
CHARGE INJECTION
vs. V
COM
100
100
90
80
70
60
50
40
30
20
10
6
5
4
3
2
1
0
R
= 1kΩ
LOAD
V+ = 5V
600Ω IN/OUT
t
ON
V+ = 12V
10
1
0.1
0.01
V+ = 5V
V+ = 3V
t
OFF
0
0
1
2
3
4
5
6
7
8
9 10 11 12
10
100
1k
10k
100k
0
2
4
6
8
10
12
V
(V)
FREQUENCY (Hz)
COM
V
(V)
SUPPLY
_______________________________________________________________________________________
5
Low-Voltage, SPST, CMOS Analog Switches
______________________________________________________________Pin Description
PIN
MAX4501
SC70-5/SOT23-5
MAX4502
SC70-5/SOT23-5
NAME
FUNCTION
SO/DIP
SO/DIP
1
1
—
5
1
1
—
5
COM
N.C.
V+
Analog Switch Common Terminal
No Connection. Not internally connected.
Positive Supply-Voltage Input (analog and digital)
Digital Control Input
2, 3, 5
2, 3, 5
4
6
4
6
4
4
IN
7
3
7
3
GND
NO
Ground
8
2
—
8
—
2
Analog Switch (normally open)
Analog Switch (normally closed)
—
—
NC
Note: NO, NC, and COM pins are identical and interchangeable. Any may be considered as an input or an output; signals pass
equally well in both directions.
nal gates. This drive signal is the only connection
between the logic supplies (and signals) and the ana-
Applications Information
Power-Supply Considerations
The MAX4501/MAX4502 are constructed like most
CMOS analog switches, except they have only two sup-
ply pins: V+ and GND. V+ and GND drive the internal
CMOS switches and set the analog voltage limits of the
switch. Reverse ESD-protection diodes are internally
connected between each analog signal pin and both
V+ and GND. One of these diodes conducts if any ana-
log signal exceeds V+ or GND. During normal opera-
tion, these and other reverse-biased ESD diodes leak,
forming the only current drawn from V+ or GND.
log supplies. COM, NO, and NC pins have ESD-protec-
tion diodes to V+ and GND.
The logic-level thresholds are CMOS/TTL compatible
when V+ is +5V. As V+ rises, the threshold increases
slightly. When V+ reaches +12V, the logic-level thresh-
old is about 3V—above the TTL guaranteed high-level
minimum of 2.8V, but still compatible with CMOS out-
puts.
Do not connect the MAX4501/MAX4502’s V+ pin to
+3V and then 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.
Virtually all the analog leakage current comes from the
ESD diodes. Although the ESD diodes on a given sig-
nal pin are identical and therefore fairly well balanced,
they are reverse biased differently. Each is biased by
either V+ or GND and the analog signal. This means
their leakages will vary as the signal varies. The differ-
ence in the two diode leakages to the V+ and GND
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 the same or opposite polarity.
High-Frequency Performance
In 50Ω systems, signal response is reasonably flat up
to 250MHz (see Typical Operating Characteristics).
Above 20MHz, the on-response has several minor
peaks that are highly layout dependent. The problem is
not in turning the switch on; it’s 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 -60dB in 50Ω systems, decreasing
approximately 20dB per decade as frequency increas-
es. Higher circuit impedances also cause off-isolation
to decrease. Adjacent channel attenuation is about 3dB
above that of a bare IC socket, and is due entirely to
capacitive coupling.
There is no connection between the analog-signal
paths and V+ or GND.
V+ and GND also power the internal logic and logic-
level translators, and set the input logic limits. The
logic-level translators convert the logic levels to
switched V+ and GND signals to drive the analog sig-
6
_______________________________________________________________________________________
Low-Voltage, SPST, CMOS Analog Switches
______________________________________________Test Circuits/Timing Diagrams
V+
+3V
50%
V
IN
V+
0
NO
V
NO
MAX4501
V
OUT
V
90%
90%
IN
COM
IN
V
OUT
GND
50Ω
1k
35pF
0
t
t
OFF
ON
V+
V+
+3V
0
50%
V
IN
NC
V
NC
MAX4502
V
OUT
V
IN
90%
90%
COM
IN
V
OUT
GND
50Ω
1k
35pF
0
t
t
ON
OFF
Figure 1. Switching Times
V+
V+
V+
NO OR
NC
V
IN
V
OR V = 0
NC
NO
0
MAX4501
MAX4502
MAX4502
MAX4501
V
IN
COM
IN
V
OUT
∆V
OUT
GND
V
OUT
C
L
50Ω
1000pF
∆V IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
OUT
ERROR Q WHEN THE CHANNEL TURNS OFF.
•
Q = ∆V
C
L
OUT
Figure 2. Charge Injection
_______________________________________________________________________________________
7
Low-Voltage, SPST, CMOS Analog Switches
_________________________________Test Circuits/Timing Diagrams (continued)
10nF
V+
V+
V
V
OUT
OFF-ISOLATION = 20log
ON-LOSS = 20log
IN
NETWORK
ANALYZER
V
OUT
50Ω
50Ω
V
V
IN
V
NO OR
IN
NC
MAX4501
MAX4502
V+
MEAS
REF
OUT
COM
IN
MEASUREMENTS ARE STANDARDIZED AGAINST
SHORTS AT SOCKET TERMINALS. OFF-ISOLATION IS
MEASURED BETWEEN COM AND NO OR NC TERMINAL.
ON-LOSS IS MEASURED BETWEEN COM AND NO OR NC
TERMINAL. SIGNAL DIRECTION THROUGH SWITCH IS
REVERSED; WORST VALUES ARE RECORDED.
GND
50Ω
50Ω
Figure 3. Off-Isolation and On-Loss
___________________Chip Topography
V+
V+
V+
NO OR
NC
IN
MAX4501
MAX4502
1MHz
CAPACITANCE
ANALYZER
AS
REQUIRED
IN
COM
0.031"
(0.79mm)
COM
GND
NO or NC
GND
Figure 4. NO, NC, and COM Capacitance
0.029"
Ordering Information (continued)
(0.74mm)
PIN-
PACKAGE
TOP
MARK
PART
TEMP. RANGE
TRANSISTOR COUNT: 17
MAX4502CUK-T
MAX4502CSA
MAX4502CPA
MAX4502C/D
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
5 SOT23-5
8 SO
AAAB
—
SUBSTRATE CONNECTED TO V+
8 Plastic DIP
Dice*
—
—
MAX4502EXK-T -40°C to +85°C
MAX4502EUK-T -40°C to +85°C
5 SC70-5
5 SOT23-5
8 SO
AAF
AAAB
—
MAX4502ESA
MAX4502EPA
MAX4502MJA
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
8 Plastic DIP
8 CERDIP**
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—
*Contact factory for dice specifications.
**Contact factory for availability.
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
© 1999 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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