Simplicity 4533 User Manual

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General Description
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
handling. The normally open (NO_ ) and normally closed
(NC_ ) terminals are protected from overvoltage faults up
to ±25V with power on and up to ±40V 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 ±10mA of load current. This ensures unam-
biguous rail-to-rail outputs when a fault occurs.
The MAX4533 operates from dual ±4.5V to ±18V power
supplies or a single +9V to +36V supply. All digital inputs
have +0.8V and +2.4V logic thresholds, ensuring both
TTL and CMOS logic compatibility when using ±15V
supplies or a +12V supply. On-resistance is 175 max
and is matched between switches to 10 max. The off-
leakage current is only 0.5nA at T
A
= +25°C and 10nA at
T
A
= +85°C.
Applications
Redundant/Backup Systems Portable Instruments
Test Equipment Data-Acquisition
Communications Systems
Systems
Industrial and Process Control Avionics Systems
Features
Rail-to-Rail Signal Handling
±40V Fault Protection with Power Off
±25V Fault Protection with ±15V Supplies
All Switches Off with Power Off
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
±4.5V to ±18V Dual Supplies
+9V to +36V Single Supply
Pin-Compatible with Industry-Standard
MAX333/MAX333A
TTL/CMOS-Compatible Logic Inputs with ±15V or
Single +9V to +15V Supplies
MAX4533
Quad, Rail-to-Rail, Fault-Protected,
SPDT Analog Switch
________________________________________________________________ Maxim Integrated Products 1
SWITCHES ARE SHOWN WITH LOGIC "0" INPUT
N.C. = NOT INTERNALLY CONNECTED
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
IN4
NO4
COM4
NC4
NC1
COM1
NO1
IN1
MAX4533
V+
N.C.
NC3
COM3
COM2
NC2
GND
V-
NO3
IN3
IN2
NO2
TOP VIEW
SSOP/SO/DIP/CERDIP
INPUTS
V1
V2
OSC
IN
V3
V4
FLYING CAPACITOR LEVEL TRANSLATOR
(2-CHANNEL)
OUTPUTS
V1 - V2
V3 - V4
MAX4533
Typical Operating Circuit
19-1452; Rev 1; 10/99
PART
MAX4533CAP
MAX4533CWP 0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
20 SSOP
20 Wide SO
Ordering Information continued at end of data sheet.
Pin Configuration/
Functional Diagram
Ordering Information
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Pg
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.
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Summary of Contents

Page 1 - SPDT Analog Switch

General DescriptionThe MAX4533 quad, single-pole/double-throw (SPDT),fault-protected analog switch is pin-compatible with theindustry-standard MAX333

Page 2

Failure ModesThe MAX4533 is not a lightning arrester or surge pro-tector. Exceeding the fault-protection voltage limits onNO_ or NC_, even for very sh

Page 3

MAX4533Quad, Rail-to-Rail, Fault-Protected,SPDT Analog Switch______________________________________________________________________________________ 11

Page 4

MAX4533Quad, Rail-to-Rail, Fault-Protected,SPDT Analog SwitchMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely

Page 5

MAX4533Quad, Rail-to-Rail, Fault-Protected,SPDT Analog Switch2 _______________________________________________________________________________________

Page 6

MAX4533Quad, Rail-to-Rail, Fault-Protected,SPDT Analog Switch_______________________________________________________________________________________ 3

Page 7

MAX4533Quad, Rail-to-Rail, Fault-Protected,SPDT Analog Switch4 _______________________________________________________________________________________

Page 8

MAX4533Quad, Rail-to-Rail, Fault-Protected,SPDT Analog Switch_______________________________________________________________________________________ 5

Page 9

MAX4533Quad, Rail-to-Rail, Fault-Protected,SPDT Analog Switch6 _______________________________________________________________________________________

Page 10

MAX4533Quad, Rail-to-Rail, Fault-Protected,SPDT Analog Switch_______________________________________________________________________________________ 7

Page 11

MAX4533Quad, Rail-to-Rail, Fault-Protected,SPDT Analog Switch8 _______________________________________________________________________________________

Page 12

During normal operation of a conducting channel, N1and P1 remain on with a typical 125Ω on-resistancebetween NO_ (or NC_) and COM_. If the input volta

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