MAX4533CWP [MAXIM]
SPDT, 4 Func, 1 Channel, PDSO20, 0.300 INCH, MS-013AC, SOP-20;
| 型号： | MAX4533CWP |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | SPDT, 4 Func, 1 Channel, PDSO20, 0.300 INCH, MS-013AC, SOP-20 光电二极管 输出元件 |
| 文件： | 总12页 (文件大小：230K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1452; Rev 1; 10/99
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
General Description
Features
ꢀ Rail-to-Rail Signal Handling
40V Fault Protection with Power Off
25V Fault Protection with 15V Supplies
The MAX4533 quad, single-pole/double-throw (SPDT),
fault-protected analog switch is pin-compatible with the
industry-standard MAX333 and MAX333A. The MAX4533
ꢀ
®
features fault-protected inputs and Rail-to-Rail signal
ꢀ All Switches Off with Power Off
handling. The normally open (NO_ ) and normally closed
(NC_ ) terminals are protected from overvoltage faults up
to ±±5ꢀ with power on and up to ±4ꢁꢀ with power off.
During a fault condition, NO_ and NC_ become high
impedance with only nanoamperes of leakage current
flowing to the source. In addition, the output (COM_)
clamps to the appropriate polarity supply rail and pro-
vides up to ±ꢂꢁmA of load current. This ensures unam-
biguous rail-to-rail outputs when a fault occurs.
ꢀ No Power-Supply Sequencing Required During
Power-Up or Power-Down
ꢀ Output Clamped to Appropriate Supply Voltage
During Fault Condition—No Transition Glitch
ꢀ 1k (typ) Output Clamp Resistance During
Overvoltage
ꢀ 175 (max) Signal Paths with 15V Supplies
ꢀ 20ns (typ) Fault Response Time
The MAX4533 operates from dual ±4.5ꢀ to ±ꢂꢃꢀ power
supplies or a single +9ꢀ to +36ꢀ supply. All digital inputs
have +ꢁ.ꢃꢀ and +±.4ꢀ logic thresholds, ensuring both
TTL and CMOS logic compatibility when using ±ꢂ5ꢀ
supplies or a +ꢂ±ꢀ supply. On-resistance is ꢂ75 max
and is matched between switches to ꢂꢁ max. The off-
ꢀ
4.5V to 18V Dual Supplies
+9V to +36V Single Supply
ꢀ Pin-Compatible with Industry-Standard
MAX333/MAX333A
leakage current is only ꢁ.5nA at T = +±5°C and ꢂꢁnA at
A
ꢀ TTL/CMOS-Compatible Logic Inputs with 15V or
T = +ꢃ5°C.
A
Single +9V to +15V Supplies
Applications
Ordering Information
Redundant/Backup Systems
Test Equipment
Portable Instruments
PART
TEMP. RANGE
ꢁ°C to +7ꢁ°C
ꢁ°C to +7ꢁ°C
PIN-PACKAGE
±ꢁ SSOP
Data-Acquisition
Systems
MAX4533CAP
MAX4533CWP
Communications Systems
Industrial and Process Control
±ꢁ Wide SO
Avionics Systems
Ordering Information continued at end of data sheet.
Pin Configuration/
Functional Diagram
Typical Operating Circuit
INPUTS
V1
OUTPUTS
V1 - V2
TOP VIEW
IN1
NO1
IN4
1
2
20
19
18
17
16
15
14
13
12
11
V2
NO4
COM4
NC4
V+
COM1
NC1
3
OSC
IN
4
MAX4533
V-
GND
5
MAX4533
N.C.
NC3
COM3
NO3
IN3
6
NC2
7
V3 - V4
V3
V4
COM2
NO2
8
9
IN2
10
FLYING CAPACITOR LEVEL TRANSLATOR
(2-CHANNEL)
SSOP/SO/DIP/CERDIP
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
SWITCHES ARE SHOWN WITH LOGIC "0" INPUT
N.C. = NOT INTERNALLY CONNECTED
________________________________________________________________ Maxim Integrated Products
1
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.
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
ABSOLUTE MAXIMUM RATINGS
ꢀoltages Referenced to GND
Continuous Power Dissipation (T = +7ꢁ°C)
A
ꢀ+........................................................................-ꢁ.3ꢀ to +44.ꢁꢀ
ꢀ- .........................................................................-44.ꢁꢀ to +ꢁ.3ꢀ
ꢀ+ to ꢀ-................................................................-ꢁ.3ꢀ to +44.ꢁꢀ
COM_, IN_ (Note ꢂ) ............................. (ꢀ- - ꢁ.3ꢀ) to (ꢀ+ + ꢁ.3ꢀ)
NC_, NO_ (Note ±)..................................(ꢀ+ - 4ꢁꢀ) to (ꢀ- + 4ꢁꢀ)
NC_, NO_ to COM_ .................................................-4ꢁꢀ to +4ꢁꢀ
NC_, NO_ Overvoltage with Switch Power On
(supplies at ±ꢂ5ꢀ)................................................-3ꢁꢀ to +3ꢁꢀ
NC_, NO_ Overvoltage with Switch Power Off........-4ꢁꢀ to +4ꢁꢀ
Continuous Current into Any Terminal..............................±3ꢁmA
Peak Current into Any Terminal
±ꢁ-Pin SSOP (derate ꢂꢁ.53mW/°C above +7ꢁ°C) ........ꢃ4±mW
±ꢁ-Pin Wide SO (derate ꢂꢁ.ꢁꢁmW/°C above +7ꢁ°C) .. ꢃꢁꢁmW
±ꢁ-Pin Plastic DIP (derate ꢂꢂ.ꢂꢂmW/°C above +7ꢁ°C) ꢃꢃ9mW
±ꢁ-Pin CERDIP (derate ꢂꢂ.ꢂꢂmW/°C above +7ꢁ°C).....ꢃꢃ9mW
Operating Temperature Ranges
MAX4533C_ _ ......................................................ꢁ°C to +7ꢁ°C
MAX4533E_ _ ...................................................-4ꢁ°C to +ꢃ5°C
MAX4533M_ _.................................................-55°C to +ꢂ±5°C
Storage Temperature Range.............................-65°C to +ꢂ5ꢁ°C
Lead Temperature (soldering, ꢂꢁs) .................................+3ꢁꢁ°C
(pulsed at ꢂms,ꢂꢁ% duty cycle)....................................±5ꢁmA
Note 1: COM_ and IN_ pins are not fault protected. Signals on COM_ or IN_ exceeding ꢀ+ or ꢀ- are clamped by internal diodes.
Limit forward diode current to maximum current rating.
Note 2: NC_ and NO_ pins are fault protected. Signals on NC_ or NO_ exceeding -±5ꢀ to +±5ꢀ may damage the device. These
limits apply with power applied to ꢀ+ or ꢀ-. The limit is ±4ꢁꢀ with ꢀ+ = ꢀ- = ꢁ.
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—Dual Supplies
(ꢀ+ = +ꢂ5ꢀ, ꢀ- = -ꢂ5ꢀ, T = T
A
to T
, unless otherwise noted. Typical values are at T = +±5°C.) (Note 3)
MAX A
MIN
PARAMETER
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Fault-Free Analog Signal Range
(Note ±)
ꢀ+ = +ꢂ5ꢀ, ꢀ- = -ꢂ5ꢀ,
ꢀ
, ꢀ
C, E, M
ꢀ-
ꢀ+
ꢀ
_
_
NO NC
ꢀ
NO
_ or ꢀ _ = ±ꢂ5ꢀ
NC
+±5°C
C, E
M
+±5°C
C, E
M
ꢂ±5
ꢂ
ꢂ75
±ꢁꢁ
±5ꢁ
6
COM_ to NO_ or COM_ to NC_
On-Resistance
ꢀ
_ or ꢀ _ = ±ꢂꢁꢀ,
NC
_ = ꢂmA
NO
R
ON
I
COM
COM_ to NO_ or COM_ to NC_
On-Resistance Match Between
Channels (Note 4)
ꢀ
NO
_ or ꢀ _ = ±ꢂꢁꢀ,
NC
_ = ꢂmA
R
ꢂꢁ
ꢂ5
ON
I
COM
ꢀ
= +5ꢀ, ꢁ, -5ꢀ,
= ꢂmA
COM_
On-Resistance Flatness
+±5°C
4
I
COM_
+±5°C
C, E
M
+±5°C
C, E
M
-ꢁ.5
-ꢂꢁ
-±ꢁꢁ
-ꢁ.5
-±ꢁ
ꢁ.ꢁ±
ꢁ.5
ꢂꢁ
±ꢁꢁ
ꢁ.5
±ꢁ
NO_ or NC_ Off-Leakage
Current (Note 5)
I
I
ꢀ
_ or ꢀ _ = ±ꢂ4ꢀ,
NO NC
NO_(OFF),
NC_(OFF)
±
nA
nA
ꢀ
COM
_ = ꢂ4ꢀ
ꢁ.ꢁꢂ
COM_ On-Leakage Current
(Note 5)
ꢀ = ±ꢂ4ꢀ,
COM_
I
COM_(ON)
ꢀ
NO_
or ꢀ = ±ꢂ4ꢀ or floating
NC_
-4ꢁꢁ
4ꢁꢁ
FAULT
Applies with power on
Applies with power off
+±5°C
+±5°C
+±5°C
C, E
M
+±5°C
C, E
-±5
-4ꢁ
-ꢂꢁ
-±ꢁꢁ
-ꢂꢁ
-±ꢁ
+±5
+4ꢁ
ꢂꢁ
±ꢁꢁ
ꢂꢁ
±ꢁ
±ꢁꢁ
ꢂꢁ
Fault-Protected Analog Signal
Range (Note ±)
ꢀ
, ꢀ
ꢀ
NO_ NC_
nA
µA
nA
µA
COM_ Output Leakage Current,
Supplies On
ꢀ
NO_
or ꢀ
= ±±5ꢀ,
NC_
I
COM_
I
no connection to “ON” channel
NO_ or NC_ Off Input Leakage
Current, Supplies On
ꢀ
ꢀ
_ or ꢀ _ = ±±5ꢀ,
NC
NO
I
-±ꢁꢁ
-ꢂꢁ
±
NO_, NC_
_ = ꢂꢁꢀ
COM
M
2
_______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(ꢀ+ = +ꢂ5ꢀ, ꢀ- = -ꢂ5ꢀ, T = T
A
to T
, unless otherwise noted. Typical values are at T = +±5°C.) (Note 3)
MAX A
MIN
PARAMETER
SYMBOL
CONDITIONS
T
MIN
-±ꢁ
-±ꢁꢁ
-ꢂꢁ
ꢃ
TYP
MAX
±ꢁ
±ꢁꢁ
ꢂꢁ
ꢂ3
-7
UNITS
nA
A
+±5°C
C, E
M
+±5°C
+±5°C
+±5°C
C, E, M
ꢁ.ꢂ
NO_ or NC_ Input Leakage
Current, Supplies Off
ꢀ
or ꢀ
= ±4ꢁꢀ,
NO_
NC_
I
I
NO_, NC_
ꢀ+ = ꢁ, ꢀ- = ꢁ
µA
ꢀ
ꢀ
or ꢀ
or ꢀ
= +±5ꢀ
= -±5ꢀ
ꢂꢂ
-ꢂꢁ
ꢂ.ꢁ
COM_ On-Clamp Output
Current, Supplies On
NO_
NC_
I
mA
COM_
-ꢂ±
NO_
NC_
±.5
3
COM_ On-Clamp Output
Resistance, Supplies On
R
COM_
ꢀ
NO_
or ꢀ = ±±5ꢀ
NC
k
±Fault Output Clamp Turn-On
Delay Time (Note 6)
R = ꢂꢁk ,
L
+±5°C
+±5°C
±ꢁ
ns
µs
ꢀ
NO_
or ꢀ
= ±±5ꢀ
= ±±5ꢀ
NC_
±Fault Recovery Time
(Note 6)
R = ꢂꢁk ,
L
±.5
ꢀ
NO_
or ꢀ
NC_
LOGIC INPUT
IN_ Input Logic Threshold High
IN_ Input Logic Threshold Low
ꢀ
C, E, M
C, E, M
+±5°C
C, E, M
±.4
ꢀ
ꢀ
IN_H
ꢀ
ꢁ.ꢃ
ꢂ
IN_L
-ꢂ
-5
ꢁ.ꢁ3
IN_ Input Current Logic High or
Low
I
I
ꢀ
ꢀ
= +ꢁ.ꢃꢀ or +±.4ꢀ
µA
IN_H, IN_L
IN_
5
SWITCH DYNAMIC CHARACTERISTICS
+±5°C
C, E
M
+±5°C
C, E
M
ꢂꢁꢁ
6ꢁ
±5ꢁ
4ꢁꢁ
6ꢁꢁ
ꢂ5ꢁ
3ꢁꢁ
45ꢁ
= ±ꢂꢁꢀ,
COM_
Turn-On Time
Turn-Off Time
t
ns
ns
ON
R = ±k ; Figure ±
L
ꢀ
NO_
= ±ꢂꢁꢀ,
t
OFF
R = ±k ; Figure ±
L
ꢀ
= ±ꢂꢁꢀ,
COM_
L
Break-Before-Make Time Delay
Charge Injection (Note 6)
t
+±5°C
+±5°C
ꢂꢁ
5ꢁ
ns
BBM
R = ꢂk ; Figure 3
C = ꢂꢁꢁpF,
L
Q
ꢂ.5
pC
ꢀ
COM_
= ꢁ; Figure 4
NO_ or NC_ Off-Capacitance
COM_ On-Capacitance
C
f = ꢂMHz; Figure 5
f = ꢂMHz; Figure 5
+±5°C
+±5°C
5
pF
pF
N_(OFF)
C
ꢂ±
COM_(ON)
R = 5ꢁ , C = ꢂ5pF,
L
L
Off-Isolation (Note 7)
ꢀ
ꢀ
= ꢂꢀ , f = ꢂMHz;
+±5°C
+±5°C
-6±
-66
dB
dB
ISO
N_
RMS
Figure 6
R = 5ꢁ , C = ꢂ5pF,
ꢀ
Figure 6
L
N_
L
Channel-to-Channel Crosstalk
(Note ꢃ)
ꢀ
= ꢂꢀ
, f = ꢂMHz;
RMS
CT
POWER SUPPLY
Power-Supply Range
ꢀ+, ꢀ-
I+
±4.5
±ꢂꢃ
6ꢁꢁ
ꢂꢁꢁꢁ
4ꢁꢁ
6ꢁꢁ
3ꢁꢁ
45ꢁ
ꢀ
+±5°C
C, E, M
+±5°C
C, E, M
+±5°C
C, E, M
All ꢀ
= ꢁ or +5ꢀ,
IN_
IN_
IN_
ꢀ+ Supply Current
ꢀ- Supply Current
GND Supply Current
µA
ꢀ
NO_
= ꢀ
= ꢁ
NC_
All ꢀ
= ꢁ or +5ꢀ,
= ꢁ
I-
µA
µA
ꢀ
NO_
= ꢀ
NC_
All ꢀ
= ꢁ or +5ꢀ,
= ꢁ
I
GND
ꢀ
NO_
= ꢀ
NC_
_______________________________________________________________________________________
3
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
ELECTRICAL CHARACTERISTICS—Single Supply
(ꢀ+ = +ꢂ±ꢀ, ꢀ- = ꢁ, T = T
A
to T
, unless otherwise noted. Typical values are at T = +±5°C.) (Note 3)
MAX A
MIN
PARAMETER
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Fault-Free Analog Signal Range
(Note ±)
ꢀ+ = +ꢂ±ꢀ, ꢀ- = ꢁ,
_ or ꢀ _ = +ꢂ±ꢀ or ꢁ
ꢀ
, ꢀ
C, E, M
ꢁ
ꢀ+
ꢀ
_
_
NO NC
ꢀ
NO
NC
+±5°C
C, E
M
+±5°C
C, E
M
±6ꢁ
4
39ꢁ
45ꢁ
5±5
ꢂꢁ
ꢀ+ = +ꢂ±ꢀ,
COM_ to NO_, COM_ to NC_
On-Resistance
R
ꢀ _ or ꢀ _ = +ꢂꢁꢀ,
NO NC
ON
I _ = ꢂmA
COM
COM_ -NO_ On-Resistance
Match Between Channels
(Note 4)
ꢀ+ = +ꢂ±ꢀ,
ꢀ
NO
_ or ꢀ _ = +ꢂꢁꢀ,
R
±ꢁ
3ꢁ
NC
ON
I _ = ꢂmA
COM
+±5°C
C, E
M
+±5°C
C, E
M
-ꢁ.5
-ꢂꢁ
-±ꢁꢁ
-ꢁ.5
-±ꢁ
ꢁ.ꢁꢂ
ꢁ.ꢁꢂ
ꢁ.5
ꢂꢁ
±ꢁꢁ
ꢁ.5
±ꢁ
ꢀ+ = +ꢂ±ꢀ,
NO_ or NC_ Off-Leakage
Current (Notes 5, 9)
I
I
NO_(OFF),
NC_(OFF)
ꢀ
ꢀ
= +ꢂꢁꢀ, +ꢂꢀ,
nA
nA
COM_
NO_
or ꢀ
= +ꢂꢀ, +ꢂꢁꢀ
NC_
ꢀ+ = +ꢂ±ꢀ,
COM_ On-Leakage Current
(Notes 5, 9)
I
ꢀ
ꢀ
= +ꢂꢁꢀ,
COM_(ON)
COM_
NO_
or ꢀ
= +ꢂꢁꢀ or floating
NC_
-4ꢁꢁ
4ꢁꢁ
FAULT
Applies with power on
Applies with power off
+±5°C
+±5°C
+±5°C
C, E
M
+±5°C
C, E
M
-±5
-4ꢁ
-ꢂꢁ
-±ꢁꢁ
-ꢂꢁ
-±ꢁ
-±ꢁꢁ
-ꢂꢁ
-±ꢁ
-±ꢁꢁ
-ꢂꢁ
+±5
+4ꢁ
ꢂꢁ
±ꢁꢁ
ꢂꢁ
±ꢁ
±ꢁꢁ
ꢂꢁ
Fault-Protected Analog Signal
Range (Note ±)
ꢀ
, ꢀ
ꢀ
NO_ NC_
ꢀ
NO_
or ꢀ
= ±±5ꢀ,
NC_
nA
µA
nA
µA
nA
µA
mA
COM_ Output Leakage Current,
Supply On (Note 9)
I
ꢀ+ = +ꢂ±ꢀ,
no connection to “ON” channel
COM_
ꢀ
ꢀ
or ꢀ
= ±±5ꢀ,
NO_
NC_
NO_ or NC_ Off Input Leakage
Current, Supply On (Note 9)
I
I
I
= ꢁ,
NO_, NC_
COM_
ꢀ+ = +ꢂ±ꢀ
+±5°C
C, E
M
ꢁ.ꢂ
±ꢁ
±ꢁꢁ
ꢂꢁ
NO_ or NC_ Input Leakage
Current, Supply Off (Note 9)
ꢀ
NO_
or ꢀ
= ±4ꢁꢀ,
NC_
I
NO_, NC_
ꢀ+ = ꢁ, ꢀ- = ꢁ
COM_ On-Clamp Output
Current, Supply On
ꢀ
or ꢀ
= ±±5ꢀ,
= ±±5ꢀ,
NO_
NC_
I
+±5°C
+±5°C
±
3
5
5
COM_
ꢀ+ = +ꢂ±ꢀ
ꢀ or ꢀ
NO_
COM_ On-Clamp Output
Resistance, Supply On
NC_
R
±.4
k
COM_
ꢀ+ = +ꢂ±ꢀ
LOGIC INPUT
IN_ Input Logic Threshold High
IN_ Input Logic Threshold Low
ꢀ
ꢀ
C, E, M
C, E, M
+±5°C
C, E, M
±.4
ꢀ
ꢀ
IN_H
ꢁ.ꢃ
ꢂ
5
IN_L
-ꢂ
-5
ꢁ.ꢁ3
IN_ Input Current Logic High or
Low
I
I
ꢀ
IN_
= +ꢁ.ꢃꢀ or +±.4ꢀ
µA
IN_H, IN_L
4
_______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
ELECTRICAL CHARACTERISTICS—Single Supply (continued)
(ꢀ+ = +ꢂ±ꢀ, ꢀ- = ꢁ, T = T
A
to T
, unless otherwise noted. Typical values are at T = +±5°C.) (Note 3)
MAX A
MIN
PARAMETER
SYMBOL
CONDITIONS
T
MIN
TYP
±ꢁꢁ
ꢂꢁꢁ
MAX
UNITS
A
SWITCH DYNAMIC CHARACTERISTICS
+±5°C
C, E, M
+±5°C
C, E, M
5ꢁꢁ
ꢂꢁꢁꢁ
3ꢁꢁ
ꢀ
= +ꢂꢁꢀ,
R = ±k ; Figure ±
COM_
L
Turn-On Time
t
ns
ns
ns
pC
ON
ꢀ
COM_
= +ꢂꢁꢀ,
R = ±k ; Figure ±
Turn-Off Time
t
OFF
L
9ꢁꢁ
ꢀ
COM_
= +ꢂꢁꢀ,
R = ꢂk ; Figure 3
Break-Before-Make Time Delay
Charge Injection
t
+±5°C
+±5°C
5
ꢂꢁꢁ
±
BBM
L
C = ꢂꢁꢁpF,
L
Q
ꢀ
COM_
= ꢁ; Figure 4
NO_ or NC_ Off-Capacitance
COM_ On-Capacitance
C
f = ꢂMHz; Figure 5
f = ꢂMHz; Figure 5
+±5°C
+±5°C
5
pF
pF
N_(OFF)
C
ꢂ5
COM_(ON)
R = 5ꢁ , C = ꢂ5pF,
L
L
Off-Isolation (Note 7)
ꢀ
ꢀ
= ꢂꢀ
, f = ꢂMHz;
+±5°C
+±5°C
-6±
-65
dB
dB
ISO
NO_
RMS
Figure 6
R = 5ꢁ , C = ꢂ5pF,
ꢀ
Figure 6
L
NO_
L
Channel-to-Channel Crosstalk
(Note ꢃ)
ꢀ
= ꢂꢀ
, f = ꢂMHz;
CT
RMS
POWER SUPPLY
Power-Supply Range
ꢀ+
I+
C, E, M
+±5°C
C, E, M
+±5°C
C, E, M
+±5°C
C, E, M
9
36
ꢀ
35ꢁ
55ꢁ
±ꢁꢁ
35ꢁ
35ꢁ
55ꢁ
All ꢀ
= ꢁ or +5ꢀ,
IN_
IN_
IN_
ꢀ+ Supply Current
µA
ꢀ
NO_
= ꢀ
= ꢁ
NC_
All ꢀ
= ꢁ or +ꢂ±ꢀ,
= ꢁ
µA
µA
ꢀ
NO_
= ꢀ
NC_
ꢀ- and GND Supply Current
I
GND
All ꢀ
= ꢁ or +5ꢀ,
= ꢁ
ꢀ
NO_
= ꢀ
NC_
Note 3: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 4: = R - R
R
ON
.
ON(MIN)
ON(MAX)
Note 5: Leakage parameters are ꢂꢁꢁ% tested at maximum-rated hot temperature and guaranteed by correlation at T = +±5°C.
A
Note 6: Guaranteed by design.
Note 7: Off-isolation = ±ꢁlogꢂꢁ(ꢀ
/ ꢀ
NO_
), ꢀ
= output, ꢀ
= input to off switch.
NO_
COM_
COM_
Note 8: Between any two analog inputs.
Note 9: Leakage testing for single-supply operation is guaranteed by testing with dual supplies.
_______________________________________________________________________________________
5
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
Typical Operating Characteristics
(ꢀ+ = +ꢂ5ꢀ, ꢀ- = -ꢂ5ꢀ, T = +±5°C, unless otherwise noted.)
A
ON-RESISTANCE vs. V
(DUAL SUPPLIES)
ON-RESISTANCE vs. V
(SINGLE SUPPLY)
ON-RESISTANCE vs. V
TEMPERATURE (DUAL SUPPLIES)
AND
COM
COM
COM
400
350
300
250
200
150
100
50
250
225
200
175
150
125
100
75
390
360
330
300
270
240
210
V+ = +9V
V
=
4.5V
T = +125°C
A
T = +85°C
A
V+ = +12V
T = +70°C
A
V+ = +15V
V+ = +20V
V
V
=
10V
12V
T = +25°C
A
V+ = +25V
=
180
150
120
90
60
30
V+ = +30V
T = 0°C
A
50
V
=
V
15V
18V
V+ = +36V
V- = 0
T = -40°C
A
=
V+ = +15V
V- = -15V
T = -55°C
A
25
0
0
0
-18 -15 -12 -9 -6 -3
V
0
3
(V)
6
9
12 15 18
0
5
10 15 20 25 30 35 40
(V)
-15
-10
-5
0
5
10
15
V
COM
(V)
COM
V
COM
ON-RESISTANCE vs. V
TEMPERATURE (SINGLE SUPPLY)
AND
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
COM
CHARGE INJECTION vs. V
COM
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
450
400
350
300
250
200
150
100
50
1000
100
T = +125°C
A
I
(V+ = +15V, V- = -15V)
COM_ON
T = +85°C
A
I
(V+ = +12V, V- = 0)
COM_ON
T = +70°C
A
10
I
(V+ = +15V, V- = -15V)
NC_OFF
1
DUAL SUPPLIES
SINGLE SUPPLY
T = +25°C
A
0.1
T = 0°C
A
0.01
0.001
0.0001
T = -40°C
A
T = -55°C
A
I
(V+ = +12V, V- = 0)
V+ = +12V
V- = 0
NC_OFF
0
0
2
4
6
8
10
12
-55 -35 -15
5
25 45 65 85 105 125
-15
-10
-5
0
5
10
15
TEMPERATURE (°C)
V
COM
(V)
V
COM
(V)
TURN-ON/TURN-OFF TIME vs.
SUPPLY VOLTAGE (DUAL SUPPLIES)
TURN-ON/TURN-OFF TIME vs.
SUPPLY VOLTAGE (SINGLE SUPPLY)
TURN-ON/TURN-OFF TIME vs.
TEMPERATURE (DUAL SUPPLIES)
200
180
160
140
120
100
80
600
500
400
300
200
100
0
250
200
150
100
50
t
ON
t
t
ON
t
ON
OFF
t
OFF
t
OFF
60
40
V+ = +15V
V- = -15V
20
0
0
4
6
8
10
12
14
16
18
8
12
16
20
24
28
32
36
-55 -35 -15
5
25 45 65 85 105 125
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
6
_______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
Typical Operating Characteristics (continued)
(ꢀ+ = +ꢂ5ꢀ, ꢀ- = -ꢂ5ꢀ, T = +±5°C, unless otherwise noted.)
A
POWER-SUPPLY CURRENT vs.
TURN-ON/TURN-OFF TIME vs.
TEMPERATURE (SINGLE SUPPLY)
POWER-SUPPLY CURRENT vs.
TEMPERATURE (DUAL SUPPLIES, V = +5V)
TEMPERATURE (DUAL SUPPLIES, V = 0)
IN
IN
500
400
300
200
100
0
250
200
150
100
50
800
600
400
200
0
I+
I+
t
ON
I
GND
I
GND
t
OFF
-100
-200
-300
-400
-500
I-
-200
-400
-600
I-
V+ = +15V
V- = -15V
V+ = +12V
V- = 0
V+ = +15V
V- = -15V
0
-55 -35 -15
5
25 45 65 85 105 125
-55 -35 -15
5
25 45 65 85 105 125
-55 -35 -15
5
25 45 65 85 105 125
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
LOGIC-LEVEL THRESHOLD
vs. SUPPLY VOLTAGE
POWER-SUPPLY CURRENT vs.
TEMPERATURE (SINGLE SUPPLY)
OVERVOLTAGE WITH ±±5V INPUT
3.0
2.5
2.0
1.5
1.0
0.5
0
400
350
300
250
200
150
100
50
V+ = +12V
V- = 0
NO_ or
NC_
(10V/div)
OV
V
IN
= +5V
DUAL-SUPPLY
RANGE
SINGLE-SUPPLY
RANGE
I+
COM_
(10V/div)
OV
I
GND
0
5µs/div
4
8
12 16 20 24 28 32 36
SUPPLY VOLTAGE (V)
-55 -35 -15
5
25 45 65 85 105 125
TEMPERATURE (°C)
FAULT RECOVERY TIME
FAULT-FREE SIGNAL WITH 15V INPUT
NO_ or
NC_
NO_ or
NC_
(10V/div)
(10V/div)
OV
OV
COM_
COM_
(10V/div)
OV
(10V/div)
OV
2 s/div
5 s/div
_______________________________________________________________________________________
7
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
Typical Operating Characteristics (continued)
(ꢀ+ = +ꢂ5ꢀ, ꢀ- = -ꢂ5ꢀ, T = +±5°C, unless otherwise noted.)
A
FREQUENCY RESPONSE
FREQUENCY RESPONSE
(SINGLE SUPPLY)
(DUAL SUPPLIES)
0
0
-10
-20
BANDWIDTH
-10
-20
BANDWIDTH
-30
-40
-30
-40
-50
-60
-50
-60
OFF ISOLATION
OFF ISOLATION
CROSSTALK
CROSSTALK
-70
-70
-80
-80
-90
V+ = +15V
V- = -15V
-90
V+ = +12V
V- = 0
-100
-100
0.01
0.1
1
10
100
1000
0.01
0.1
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
Pin Description
PIN
NAME
FUNCTION
ꢂ, ꢂꢁ, ꢂꢂ, ±ꢁ
INꢂ, IN±, IN3, IN4
NOꢂ, NO±, NO3, NO4
Logic Control Digital Inputs
±, 9, ꢂ±, ꢂ9
Normally Open Inputs*
3, ꢃ, ꢂ3, ꢂꢃ
COMꢂ, COM±, COM3, COM4
Analog Switch Common Outputs*
Normally Closed Inputs*
4, 7, ꢂ4, ꢂ7
NCꢂ, NC±, NC3, NC4
5
6
ꢀ-
Negative Analog Supply ꢀoltage Input
Digital Ground
GND
N.C.
ꢀ+
ꢂ5
ꢂ6
No Connection. Not internally connected.
Positive Analog and Digital Supply-ꢀoltage Input
*When the voltage on NO_ or NC_ does not exceed V+ or V-, NO_ (or NC_) and COM_ pins are bidirectional.
beyond the supply rails to be passed through the switch
to the COM_ terminal, allowing rail-to-rail signal opera-
tion. Third, when a signal on NC_ or NO_ exceeds the
supply rails by about ꢂ5ꢁmꢀ (a fault condition), the volt-
age on COM_ is limited to the appropriate polarity sup-
ply voltage. Operation is identical for both fault
polarities. The fault-protection extends to ±±5ꢀ with
power on and ±4ꢁꢀ with power off.
Detailed Description
The MAX4533 is a fault-protected analog switch with
special operation and construction. Traditional fault-pro-
tected switches are constructed using three-series
CMOS devices. This combination produces good fault
protection but fairly high on-resistance when the signals
are within about 3ꢀ of each supply rail. These series
devices are not capable of handling signals up to the
power-supply rails.
The MAX4533 has a parallel N-channel and P-channel
MOSFET switch configuration with input voltage sensors.
The simplified internal structure is shown in Figure ꢂ. The
parallel Nꢂ and Pꢂ MOSFETs form the switch element.
N3 and P3 are sensor elements to sample the input volt-
age and compare it against the power-supply rails.
The MAX4533 differs considerably from traditional fault-
protected switches, with three advantages. First, it is
constructed with two parallel FETs, allowing very low
on-resistance when the switch is on. Second, they allow
signals on the NC_ or NO_ pins that are within or slightly
8
_______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
Fault Condition
The MAX4533 protects devices connected to its output
(COM_) through its unique fault-protection circuitry.
When the input voltage is raised above either supply
rail, the internal sense and comparator circuitries (N3
-15V
COMPARATOR
N-CHANNEL
DRIVER
-V(-15V)
and N-channel driver or P3 and P-channel driver) dis-
-15V
connect the output (COM_) from the input (Figure ꢂ).
N3
If the switch driven above the supply rail has an on
SENSE
N2
SWITCH
CLAMP
state, the clamp circuitries (N± or P±) connect the out-
put to the appropriate supply rail. Table ꢂ summarizes
NC_
or
NO_
N1
the MAX4533’s operation under normal and fault condi-
tions. Row 5 shows a negative fault condition when the
supplies are on. It shows that with supplies of ±ꢂ5ꢀ, if
the input voltage is between -ꢂ5ꢀ and -±5ꢀ, the output
(COM_) clamps to the negative supply rail of -ꢂ5ꢀ.
With this technique, the SPDT switch is capable of with-
standing a worse-case condition of opposite fault polar-
ities at its inputs.
OUTPUT COM_
P2
INPUT
CLAMP
P1
P3
SENSE
SWITCH
+V(+15V)
P-CHANNEL
DRIVER
+15V
Transient Fault Condition
When a fast rising or falling transient on NO_ (or NC_)
exceeds ꢀ+ or ꢀ-, the output (COM_) follows the input
(IN_) to the supply rail by only a few nanoseconds. This
delay is due to the switch on-resistance and circuit
capacitance to ground. However, when the input tran-
sient returns to within the supply rails there is a longer
recovery time. For positive faults, the recovery time is
typically ±.5µs. For negative faults, the recovery time is
typically ꢂ.3µs. These values depend on the COM_ out-
put resistance and capacitance. The delays are not
dependent on the fault amplitude. Higher COM_ output
resistance and capacitance increase the recovery
times.
COMPARATOR
+15V
Figure 1. Simplified Internal Structure
During normal operation of a conducting channel, Nꢂ
and Pꢂ remain on with a typical ꢂ±5 on-resistance
between NO_ (or NC_) and COM_. If the input voltage
exceeds either supply rail by about ꢂ5ꢁmꢀ, the parallel
combination switches (Nꢂ, Pꢂ) are forced off through
the driver and sensing circuitries. At the same time, the
output (COM_ ) is clamped to the appropriate supply
rail by the clamp circuitries (N±, P±). Two clamp circuits
limit the output voltage to the supply voltages.
Fault Protection, Voltage, and Power Off
The maximum fault voltage on the NO_ or NC_ pins is
±4ꢁꢀ from ground when the power is off. With ±ꢂ5ꢀ sup-
ply voltages, the highest voltage on NO_ (or NC_) can
be +±5ꢀ, and the lowest voltage on NO_ (or NC_) can
be -±5ꢀ. Exceeding these limits can damage the chip.
For simplicity, Figure ꢂ shows only one side of the SPDT
switch configuration. The complete circuit is composed
of two channels with their outputs connected.
Normal Operation
Two comparators continuously compare the voltage on
the NO_ (or NC_ ) pin with ꢀ+ and ꢀ- supply voltages.
When the signal on NO_ (or NC_ ) is between ꢀ+ and
ꢀ-, the switch behaves normally, with FETs Nꢂ and Pꢂ
turning on and off in response to NO_ (or NC_) signals
(Figure ꢂ). For any voltage between the supply rails,
the switch is bidirectional; therefore, COM_ and NC_
(or NO_ ) are interchangeable. Only NO_ and NC_ can
be exposed to overvoltages beyond the supply range
and within the specified breakdown limits of the device.
IN_ Logic-Level Thresholds
The logic-level thresholds are TTL/CMOS-compatible
when ꢀ+ is +ꢂ5ꢀ. Raising ꢀ+ increases the threshold
slightly; when ꢀ+ reaches +±5ꢀ, the level threshold is
±.ꢃꢀ—higher than the TTL output high-level minimum of
±.4ꢀ, but still compatible with CMOS outputs (see the
Typical Operating Characteristics).
Increasing ꢀ- has no effect on the logic-level thresh-
olds, but it does increase the gate-drive voltage to the
signal FETs, reducing their on-resistance.
_______________________________________________________________________________________
9
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
Table 1. Switch States in Normal and Fault Conditions
POWER
SUPPLIES
(V+, V-)
INPUT
RANGE
NC_
NO_
OUTPUT
On
On
On
On
On
On
Between Rails
On
Off
On
Off
On
Off
Off
On
Off
On
Off
On
NC_
NO_
ꢀ+
Between Rails
Between ꢀ+ and (+4ꢁꢀ - ꢀ+)
Between ꢀ+ and (+4ꢁꢀ - ꢀ+)
Between ꢀ- and (-4ꢁꢀ - ꢀ-)
Between ꢀ- and (-4ꢁꢀ - ꢀ-)
ꢀ+
ꢀ-
ꢀ-
Follows the load
terminal voltage.
Off
Between Rails
Off
Off
drive signal is the only connection between the power
supplies and the analog signals. GND, IN_, and COM_
have ESD protection diodes to ꢀ+ and ꢀ-.
Failure Modes
The MAX4533 is not a lightning arrester or surge pro-
tector. Exceeding the fault-protection voltage limits on
NO_ or NC_, even for very short periods, can cause the
device to fail.
Supply Current Reduction
When the logic signals are driven rail-to-rail from ꢁ to
+ꢂ±ꢀ or -ꢂ5ꢀ to +ꢂ5ꢀ, the supply current reduces to
approximately half of the supply current when the logic
input levels are at ꢁ to 5ꢀ.
Applications Information
Ground
There is no connection between the analog signal
paths and GND. The analog signal paths consist of an
N-channel and P-channel MOSFET with their sources
and drains paralleled and their gates driven out of
phase to ꢀ+ and ꢀ- by the logic-level translators.
Power Supplies
The MAX4533 operates with bipolar supplies between
±4.5ꢀ and ±ꢂꢃꢀ. The ꢀ+ and ꢀ- supplies need not be
symmetrical, but their difference can not exceed the
absolute maximum rating of +44ꢀ. The MAX4533 oper-
ates from a single supply between +9ꢀ and +36ꢀ when
ꢀ- is connected to GND.
ꢀ+ and GND power the internal logic and logic-level
translators and set the input logic thresholds. The logic-
level translators convert the logic levels to switched ꢀ+
and ꢀ- signals to drive the gates of the switches. This
Test Circuits/Timing Diagrams
t
t
< 20ns
< 20ns
R
F
MAX4533
NC_
NO_
3V
0V
SWITCH OUTPUT
2k
+10V
-10V
50%
50%
V
IN
COM_
t
ON
t
OFF
IN_
t
OPEN
50%
+10V
0V
V+
GND
V-
50%
LOGIC
INPUT
V
COM
50%
50%
-10V
+15V
-15V
t
OFF
t
t
OPEN
ON
(REPEAT TEST FOR IN2, IN3, AND IN4.)
Figure 2. Switching-Time Test Circuit
10 ______________________________________________________________________________________
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
Test Circuits/Timing Diagrams (continued)
+15V
+3V
LOGIC
INPUT
V+
50%
MAX4533
V
NO
NC
O1
0V
V
COM_
IN_
COM
R
C
L1
V
V
V
L1
O2
COM
V
O1
0.9V
O
R
L2
0V
SWITCH
OUTPUT
C
L2
GND
V-
LOGIC
INPUT
COM
V
0.9V
O
O2
-15V
R
C
= 1000
= 35pF
0V
L
L
SWITCH
OUTPUT
t
t
D
D
C
INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
LOGIC 0 INPUT.
Figure 3. Break-Before-Make
V+
V+
V+
0V
V
IN_
V
IN_
COM_
V
IN_
50
MAX4533
V
OUT
V
OUT
NC_ OR NO_
V
OUT
C
GND
V-
L
100pF
V-
V
IS THE MEASURED VOLTAGE DUE TO CHARGE-
OUT
TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF.
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
Q = V x C
OUT
L
Figure 4. Charge Injection
V+
V+
NO_
NC_
V+
MAX4533
1MHz
CAPACITANCE
ANALYZER
COM_
IN_
ADDRESS SELECT
V-
GND
V-
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
Figure 5. COM_, NO_, NC_ Capacitance
______________________________________________________________________________________ 11
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
Test Circuits/Timing Diagrams (continued)
V+ 10nF
V+
NETWORK
ANALYZER
V
V
V
50
50
OUT
V
IN
OFF ISOLATION = 20 log
ON LOSS = 20 log
V
IN
COM_
OUT
MAX4533
V
IN
V
OUT
OUT
CROSSTALK = 20 log
MEAS.
REF.
IN_
ADDRESS SELECT
NO_, NC_
V-
V
IN
GND
50
50
10nF
V-
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT SOCKET TERMINALS.
OFF ISOLATION IS MEASURED BETWEEN COM_ AND “OFF” NO_ OR NC_ TERMINALS.
ON LOSS IS MEASURED BETWEEN COM_ AND “ON” NO_ OR NC_ TERMINALS.
CROSSTALK IS MEASURED BETWEEN COM_ TERMINALS WITH ALL SWITCHES ON.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
Figure 6. Frequency Response, Off-Isolation, and Crosstalk
Ordering Information (continued)
Chip Information
PART
TEMP. RANGE
ꢁ°C to +7ꢁ°C
PIN-PACKAGE
±ꢁ Plastic DIP
±ꢁ SSOP
TRANSISTOR COUNT: 44ꢃ
MAX4533CPP
MAX4533EAP
MAX4533EWP
MAX4533EPP
MAX4533MJP
-4ꢁ°C to +ꢃ5°C
-4ꢁ°C to +ꢃ5°C
-4ꢁ°C to +ꢃ5°C
-55°C to +ꢂ±5°C
±ꢁ Wide SO
±ꢁ Plastic DIP
±ꢁ CERDIP
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.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© ꢂ999 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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