MAX379CPE+ Maxim Integrated Products, MAX379CPE+ Datasheet

IC MULTIPLEXER DUAL 4X1 16DIP

MAX379CPE+

Manufacturer Part Number
MAX379CPE+
Description
IC MULTIPLEXER DUAL 4X1 16DIP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX379CPE+

Function
Multiplexer
Circuit
2 x 4:1
On-state Resistance
3.5 kOhm
Voltage Supply Source
Dual Supply
Voltage - Supply, Single/dual (±)
±4.5 V ~ 18 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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.
________________________Applications
19-1902; Rev 1; 8/94
Call toll free 1-800-998-8800 for free samples or literature.
_______________General Description
__________________________________________________________Pin Configurations
Pin Configurations continued at end of data sheet.
Data Acquisition Systems
Industrial and Process Control Systems
Avionics Test Equipment
Signal Routing Between Systems
OUT
IN1
IN2
IN3
IN4
EN
A0
V-
________________________________________________________________ Maxim Integrated Products
1
2
3
4
5
6
7
8
MAX378
DIP
16
15
14
13
12
11
10
9
A1
A2
GND
V+
IN5
IN6
IN7
IN8
High-Voltage, Fault-Protected
TOP VIEW
____________________________Features
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).
______________Ordering Information
MAX378CPE
MAX378CWG
MAX378CJE
MAX378C/D
MAX378EPE
MAX378EWG
MAX378EJE
MAX378MJE
MAX378MLP
Fault Input Voltage ±75V with Power Supplies Off
Fault Input Voltage ±60V with ±15V Power Supplies
All Switches Off with Power Supplies Off
On Channel Turns OFF if Overvoltage Occurs on
Input or Output
Only Nanoamperes of Input Current Under All
Fault Conditions
No Increase in Supply Currents Due to Fault
Conditions
Latchup-Proof Construction
Operates from ±4.5V to ±18V Supplies
All Digital Inputs are TTL and CMOS Compatible
Low-Power Monolithic CMOS Design
PART
Analog Multiplexers
OUTA
IN1A
IN2A
IN3A
IN4A
EN
A0
V-
1
2
3
4
5
6
7
8
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
-55°C to +125°C
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
MAX379
DIP
16
15
14
13
12
11
10
9
A1
GND
V+
IN1B
IN2B
IN3B
IN4B
OUTB
16 Plastic DIP
24 Wide SO
16 CERDIP
Dice**
16 Plastic DIP
24 Wide SO
16 CERDIP
16 CERDIP
20 LCC*
PIN-PACKAGE
1

Related parts for MAX379CPE+

MAX379CPE+ Summary of contents

Page 1

... OUT 8 9 DIP Pin Configurations continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products Call toll free 1-800-998-8800 for free samples or literature. High-Voltage, Fault-Protected Analog Multiplexers ____________________________Features Fault Input Voltage ±75V with Power Supplies Off Fault Input Voltage ±60V with ±15V Power Supplies ...

Page 2

High-Voltage, Fault-Protected Analog Multiplexers ABSOLUTE MAXIMUM RATINGS Voltage between Supply Pins ..............................................+44V V+ to Ground ...................................................................+22V V- to Ground......................................................................-22V Digital Input Overvoltage: { V+......................................................................+ ........................................................................-4V Analog Input with Multiplexer Power On..............................±65V { } Recommended ...

Page 3

ELECTRICAL CHARACTERISTICS (continued) (V+ = +15V -15V; V (Logic Level High) = +2.4V PARAMETER SYMBOL DYNAMIC Access Time t A Break-Before-Make Delay OFF (Figure 2) Enable Delay (ON) t ON(EN) Enable Delay (OFF) ...

Page 4

High-Voltage, Fault-Protected Analog Multiplexers __________________________________________Typical Operating Characteristics INPUT LEAKAGE vs. INPUT VOLTAGE WITH 100 10 1 OPERATING RANGE 100n 10n 1n 100p 10p -100 - 100 V (V) IN NOTE: Typical R ...

Page 5

MAX358 3.0V AH ADDRESS DRIVE ( OUTPUT 50% 50% t OPEN Figure 2. Break-Before-Make Delay (t ) OPEN MAX378 3.0V AH ENABLE DRIVE 50% 0V 90% OUTPUT 90% t ON(EN) t OFF(EN) Figure ...

Page 6

High-Voltage, Fault-Protected Analog Multiplexers Truth Table—MAX378 ...

Page 7

Input switching, however, must be done with a fault- protected MAX378 multiplexer, to provide the level of protection and isolation required with most data acqui- sition inputs. Since external signal sources may contin supply voltage when the multiplexer ...

Page 8

High-Voltage, Fault-Protected Analog Multiplexers to-source voltage. The P-channel device (Q2), howev- er, has +60V V and is turned off, thereby preventing GS the input signal from reaching the output. If the input voltage is +60V, Q1 has a negative V ...

Page 9

Table 1b. MAX379 Charge Injection Injected Charge Supply Analog Voltage Input Level Out A Out B +1.7V +105pC +107pC ±5V 0V +73pC +74pC -1.7V +48pC +50pC +5V +215pC +220pC ±10V 0V +135pC +139pC -5V +62pC +63pC +10V +525pC +530pC ±15V ...

Page 10

High-Voltage, Fault-Protected Analog Multiplexers _____________________________________________Pin Configurations (continued N. N. MAX378 IN1 6 19 IN2 7 18 IN3 8 17 IN4 N.C. 14 ...

Page 11

Information (continued) PART TEMP. RANGE PIN-PACKAGE MAX379CPE 0°C to +70°C 16 Plastic DIP MAX379CWG 0°C to +70°C 24 Wide SO MAX379CJE 0°C to +70°C 16 CERDIP MAX379C/D 0°C to +70°C Dice** MAX379EPE -40°C to +85°C 16 Plastic DIP MAX379EWG ...

Page 12

... Maxim reserves the right to change the circuitry and specifications without notice at any time. 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 12 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © ...

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