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MAX379MLP-883B

Description
Multiplexer Switch ICs 8-Channel, High-Voltage, Fault-Protected Multiplexers
Categorysemiconductor    Other integrated circuit (IC)   
File Size103KB,12 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX379MLP-883B Overview

Multiplexer Switch ICs 8-Channel, High-Voltage, Fault-Protected Multiplexers

MAX379MLP-883B Parametric

Parameter NameAttribute value
Product CategoryMultiplexer Switch ICs
ManufacturerMaxim
19-1902; Rev 1; 8/94
High-Voltage, Fault-Protected
Analog Multiplexers
_______________General Description
The MAX378 8-channel single-ended (1-of-8) multiplexer
and the MAX379 4-channel differential (2-of-8) multiplexer
use a series N-channel/P-channel/N-channel structure to
provide significant fault protection. If the power supplies to
the MAX378/MAX379 are inadvertently turned off while
input voltages are still applied,
all
channels in the muxes
are turned off, and only a few nanoamperes of leakage cur-
rent will flow into the inputs. This protects not only the
MAX378/MAX379 and the circuitry they drive, but also the
sensors or signal sources that drive the muxes.
The series N-channel/P-channel/N-channel protection
structure has two significant advantages over the simple
current-limiting protection scheme of the industry’s first-
generation fault-protected muxes. First, the Maxim protec-
tion scheme limits fault currents to nanoamp leakage
values rather than many milliamperes. This prevents dam-
age to sensors or other sensitive signal sources. Second,
the MAX378/MAX379 fault-protected muxes can withstand
a
continuous
±60V input, unlike the first generation, which
had a continuous ±35V input limitation imposed by power
dissipation considerations.
All digital inputs have logic thresholds of 0.8V and 2.4V,
ensuring both TTL and CMOS compatibility without requir-
ing pull-up resistors. Break-before-make operation is
guaranteed. Power dissipation is less than 2mW.
____________________________Features
o
Fault Input Voltage ±75V with Power Supplies Off
o
Fault Input Voltage ±60V with ±15V Power Supplies
o
All Switches Off with Power Supplies Off
o
On Channel Turns OFF if Overvoltage Occurs on
Input or Output
o
Only Nanoamperes of Input Current Under All
Fault Conditions
o
No Increase in Supply Currents Due to Fault
Conditions
o
Latchup-Proof Construction
o
Operates from ±4.5V to ±18V Supplies
o
All Digital Inputs are TTL and CMOS Compatible
o
Low-Power Monolithic CMOS Design
MAX378/MAX379
______________Ordering Information
PART
MAX378CPE
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
16 Plastic DIP
________________________Applications
Data Acquisition Systems
Industrial and Process Control Systems
Avionics Test Equipment
Signal Routing Between Systems
MAX378CWG
0°C to +70°C
24 Wide SO
MAX378CJE
0°C to +70°C
16 CERDIP
MAX378C/D
0°C to +70°C
Dice**
MAX378EPE
-40°C to +85°C
16 Plastic DIP
MAX378EWG
-40°C to +85°C
24 Wide SO
MAX378EJE
-40°C to +85°C
16 CERDIP
MAX378MJE
-55°C to +125°C
16 CERDIP
MAX378MLP
-55°C to +125°C
20 LCC*
Ordering Information continued at end of data sheet.
* Contact factory for availability.
**The substrate may be allowed to float or be tied to V+ (JI CMOS).
__________________________________________________________Pin Configurations
TOP VIEW
A0 1
EN 2
V- 3
IN1 4
IN2 5
IN3 6
IN4 7
OUT 8
16 A1
15 A2
14 GND
A0 1
EN 2
V- 3
IN1A 4
IN2A 5
IN3A 6
IN4A 7
OUTA 8
16 A1
15 GND
14 V+
MAX378
13 V+
12 IN5
11 IN6
10 IN7
9
IN8
MAX379
13 IN1B
12 IN2B
11 IN3B
10 IN4B
9
OUTB
DIP
Pin Configurations continued at end of data sheet.
DIP
________________________________________________________________
Maxim Integrated Products
1
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