ADG438FBRZ Dual-Supply Analog Switches and Multiplexers by Analog Devices

Dual-Supply Analog Switches and Multiplexers
Status: Production
Series: ADG438F
RoHS: Compliant
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The ADG438F and ADG439F are CMOS analog multiplexers, with the ADG438F comprising eight single channels and the ADG439F comprising four differential channels. These multiplexers provide fault protection. Using a series n-channel, p-channel, and n-channel 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 with power supplies off, the multiplexer input (or output) appears as an open circuit and only a few nanoamperes of leakage current flows. 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 output 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.PRODUCT HIGHLIGHTS Fault Protection. The ADG438F and ADG439F can with-stand continuous voltage inputs up to −40 V or +55 V. When a fault occurs due to the power supplies being turned off, all the channels are turned off and only a leakage current of a few nanoamperes flows. On channel saturates while fault exists. Low RON. Fast Switching Times. Break-Before-Make Switching. Switches are guaranteed break-before-make so that input signals are protected against momentary shorting. Trench Isolation Eliminates Latch-Up. A dielectric trench separates the p-channel and n-channel MOSFETs thereby preventing latch-up. Improved Off Isolation. Trench isolation enhances the channel-to-channel isolation of the ADG438F / ADG439F.

Where to Buy

Prices starting from US$7.52

Distributor Stock
Logo for Newark Electronics
Newark Electronics
from US$8.15
136
in stock
 Buy Now
Logo for element14
element14
from US$7.54
136
in stock
 Buy Now
Logo for Farnell
Farnell
from US$7.52
136
in stock
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Features

All switches off with power supply off
Analog Output of ON Channel Clamped within Power Supplies If an Overvoltage Occurs
Latch-up proof construction
Fault and Overvoltage Protection
(-40 V, + 55 V)
Fast switching times
tON 250 ns max
tOFF150 ns max
Break-Before-Make Switching Action
TTL and CMOS Compatible inputs

Alternative Descriptions

Multiplexer, Analogue, Nsoic | Newark Electronics
MULTIPLEXER, ANALOGUE, NSOIC | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a ADG438FBRZ?

Additional datasheets, footprints and schematics for ADG438FBRZ are listed on our Part Details page. You can also find images and similar parts to ADG438FBRZ on this page.

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What category does ADG438FBRZ fall under?

The ADG438FBRZ is listed under Dual-Supply Analog Switches and Multiplexers.

Can I view similar or alternative parts?

You can view similar parts to ADG438FBRZ when available in the Dual-Supply Analog Switches and Multiplexers range under the specifications section at the bottom of the details page.

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Is the ADG438FBRZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for ADG438FBRZ have stock available?

Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for ADG438FBRZ.

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