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ADG3245:  2.5 V/3.3 V, 8 Bit, 2 Port Level Translator, Bus Switch

Product Details


The ADG3245 is a 2.5 V or 3.3 V 8 bit, 2 port digital switch. It is designed on a low voltage CMOS process which provides low power dissipation yet gives high switching speed and very low on resistance allowing inputs to be connected to the outputs without additional propagation delay or generating additional ground bounce noise.

The switches are enabled by means of the Bus Enable, () input signal. These digital switches allow bi-directional signals to be switched when ON. In the OFF condition, signal levels up to the supplies are blocked. This device is ideal for applications requiring level translation. When operated from a 3.3 V supply, level translation from 3.3V inputs to 2.5V outputs is allowed. Similarly, if the device is operated from a 2.5 V supply and 2.5 V inputs are applied, the device will translate the outputs to 1.8 V. In addition to this, a level translating select pin ( ) is included. When is low, VCC is reduced internally allowing for level translation between 3.3V inputs and 1.8V outputs. This makes the device suited to applications requiring level translation between different supplies, such as converter to DSP interfacing.

FEATURES and BENEFITS

  • 175 ps Propagation Delay through the switch
  • 3.5 Ω Switch Connection between Ports
  • 2.5 V/3.3 V Supply Operation
  • Selectable Level Shifting/Translation
  • Level Translation
    - 3.3 V to 2.5 V
    - 3.3 V to 1.8 V
    - 2.5 V to 1.8 V
  • 20 Lead TSSOP & CSP Packages

Functional Block Diagram for ADG3245

Documentation

Title Content Type File Type
ADG3245: 2.5 V/3.3 V, 8 Bit, 2 Port Level Translating, Bus Switch Data Sheet (Rev B, 04/2013) (pdf, 408 kB) Data Sheets PDF
Data-acquisition system uses fault protection
By Catherine Redmond, Analog Devices, Inc. (EDN, 4/15/2004)
Technical Articles HTML
CMOS Switches Offer High Performance in Low Power, Wideband Applications  (pdf, 320 kB)
by Theresa Corrigan and Ray Goggin, Analog Devices, Inc. (High Frequency Electronics, February 2004)
Technical Articles PDF
Enhanced Multiplexing for MEMS Optical Cross Connects
by James Caffrey (Fiberoptic Product News, 8/2003)
Technical Articles HTML
Bus Switches for Speed, Safety, and Efficiency: What They Are and What You Should Know About Them.
Bus switches are characterized by sub-nanosecond propagation delay and fast switching, and are designed for connecting to high-speed digital buses. They are ideally suited for voltage translation, hot swapping, hot plug, bus- or capacitance isolation, and many other applications. The key features that make them suitable for so many different applications include low on-resistance, low capacitance, and low propagation delay.
Analog Dialogue HTML
Switches and Multiplexers Product Selection Guide  (pdf, 1462 kB) Product Selection Guide PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADG3245 IBIS Model  (ibs) IBIS Models IBS

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADG3245 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADG3245BCPZ Status: Production 20 ld LFCSP 4x4mm (2.1EP) 20 Ind Tray, 490 $0.88 $0.72 Y  Material Info PCN Purchase Sample
ADG3245BRU Status: Production 20 ld TSSOP 20 Ind Tube, 75 $1.02 $0.83 N  Material Info PCN Purchase
ADG3245BRU-REEL7 Status: Production 20 ld TSSOP 20 Ind Reel, 1000 - $0.83 N  Material Info PCN Purchase
ADG3245BRUZ Status: Production 20 ld TSSOP 20 Ind Tube, 75 $0.88 $0.72 Y  Material Info PCN Purchase Sample
ADG3245BRUZ-REEL7 Status: Production 20 ld TSSOP 20 Ind Reel, 1000 - $0.72 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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