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MAX378CPE+ Datasheet

  • MAX378CPE+

  • IC MULTIPLEXER 8X1 16DIP

  • 12頁(yè)

  • Maxim   Maxim

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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鈥檚 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
鹵60V input, unlike the first generation, which
had a continuous 鹵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 鹵75V with Power Supplies Off
o
Fault Input Voltage 鹵60V with 鹵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 鹵4.5V to 鹵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擄C to +70擄C
PIN-PACKAGE
16 Plastic DIP
________________________Applications
Data Acquisition Systems
Industrial and Process Control Systems
Avionics Test Equipment
Signal Routing Between Systems
MAX378CWG
0擄C to +70擄C
24 Wide SO
MAX378CJE
0擄C to +70擄C
16 CERDIP
MAX378C/D
0擄C to +70擄C
Dice**
MAX378EPE
-40擄C to +85擄C
16 Plastic DIP
MAX378EWG
-40擄C to +85擄C
24 Wide SO
MAX378EJE
-40擄C to +85擄C
16 CERDIP
MAX378MJE
-55擄C to +125擄C
16 CERDIP
MAX378MLP
-55擄C to +125擄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
Call toll free 1-800-998-8800 for free samples or literature.

MAX378CPE+ 產(chǎn)品屬性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 25

  • 集成電路 (IC)

  • 接口 - 模擬開(kāi)關(guān)，多路復(fù)用器，多路分解器

  • -

  • 多路復(fù)用器

  • 1 x 8:1

  • 3.5 千歐

  • 雙電源

  • ±4.5 V ~ 18 V

  • -

  • 0°C ~ 70°C

  • 通孔

  • 16-DIP（0.300"，7.62mm）

  • 16-PDIP

  • 管件

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