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Part Number: ADG438F
Description: The ADG438F/ADG439F are CMOS analog multiplexers, the ADG438F comprising 8 single channels and the ADG439F comprising f...
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ADG438F
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DataSheet
General Description
ADG438F General Description
The ADG438F/ADG439F are CMOS analog multiplexers, the ADG438F comprising 8 single channels and the ADG439F comprising four differential channels. These multiplexers provide fault protection. Using a series n-channel, p-channel, nchannel MOSFET structure, both device and signal source protection is provided in the event of an overvoltage or power loss. The multiplexer can withstand continuous overvoltage inputs from 40 V to +55 V. During fault conditions, the multiplexer input (or output) appears as an open circuit and only a few nanoamperes of leakage current will flow. This protects not only the multiplexer and the circuitry driven by the multiplexer, but also protects the sensors or signal sources which drive the multiplexer.
The ADG438F switches one of eight inputs to a common out-put as determined by the 3-bit binary address lines A0, A1 and A2. The ADG439F switches one of four differential inputs to a common differential output as determined by the 2-bit binary address lines A0 and A1. An EN input on each device is used to enable or disable the device. When disabled, all channels are switched OFF.
ADG438F Maximum Ratings
VDD to VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..+44 V
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +25 V
VSS to GND . . . . . . . . . . . . . . . . . . . . . . . . . .. +0.3 V to 25 V
VEN, VA Digital Input . . . . . . . 0.3 V to VDD + 2 V or 20 mA,
Whichever Occurs First
VS, Analog Input Overvoltage with Power ON . . . .VSS 25 V
to VDD + 40 V
VS, Analog Input Overvoltage with Power OFF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 V to +55 V
Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . .20 mA
Peak Current, S or D
(Pulsed at 1 ms, 10% Duty Cycle max) . . . . . . . . . . . 40 mA
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . 40°C to +105°C
Storage Temperature Range . . . . . . . . . . 65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . +150°C
Plastic Package
JA, Thermal Impedance . . . . . . . . . . . . . . . . . . . .117°C/W
Lead Temperature, Soldering (10 sec) . . . . . . . . . +260°C
SOIC Package
JA, Thermal Impedance
Narrow Body . . . . . . . . . . . . . . . . . . . . . . . . . . . 125°C/W
Wide Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +25 V
VSS to GND . . . . . . . . . . . . . . . . . . . . . . . . . .. +0.3 V to 25 V
VEN, VA Digital Input . . . . . . . 0.3 V to VDD + 2 V or 20 mA,
Whichever Occurs First
VS, Analog Input Overvoltage with Power ON . . . .VSS 25 V
to VDD + 40 V
VS, Analog Input Overvoltage with Power OFF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 V to +55 V
Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . .20 mA
Peak Current, S or D
(Pulsed at 1 ms, 10% Duty Cycle max) . . . . . . . . . . . 40 mA
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . 40°C to +105°C
Storage Temperature Range . . . . . . . . . . 65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . +150°C
Plastic Package
JA, Thermal Impedance . . . . . . . . . . . . . . . . . . . .117°C/W
Lead Temperature, Soldering (10 sec) . . . . . . . . . +260°C
SOIC Package
JA, Thermal Impedance
Narrow Body . . . . . . . . . . . . . . . . . . . . . . . . . . . 125°C/W
Wide Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
ADG438F Features
Fast Switching Times
tON 250 ns max
tOFF 150 ns max
Fault and Overvoltage Protection (40 V, +55 V)
All Switches OFF with Power Supply OFF
Analog Output of ON Channel Clamped Within Power Supplies If an Overvoltage Occurs
Latch-Up Proof Construction
Break Before Make Construction
TTL and CMOS Compatible Inputs
tON 250 ns max
tOFF 150 ns max
Fault and Overvoltage Protection (40 V, +55 V)
All Switches OFF with Power Supply OFF
Analog Output of ON Channel Clamped Within Power Supplies If an Overvoltage Occurs
Latch-Up Proof Construction
Break Before Make Construction
TTL and CMOS Compatible Inputs
ADG438F Typical Application
Data Acquisition Systems
Industrial and Process Control Systems
Avionics Test Equipment
Signal Routing Between Systems
High Reliability Control Systems
Industrial and Process Control Systems
Avionics Test Equipment
Signal Routing Between Systems
High Reliability Control Systems
ADG438F Connection Diagram
ADG438F
PDF/DataSheet Download
- Datasheet: ADG438F
- File Size: 130648 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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