Features and Benefits
- 100 ps Propagation Delay through the Switch
- 2 Ω Max Switches Connect Inputs to Outputs
- Data Rates up to 933 Mbps
- Single 3.3 V/5 V Supply Operation
- Level Translation Operation
- Ultralow Quiescent Supply Current (1 nA Typical)
- Switches remain in the off state when power is off
- 3.5 ns Switching
- Standard '3257 Type Pinout
The ADG3257 is a CMOS bus switch comprising four 2:1 multiplexer/demultiplexers with high impedance outputs. The device is manufactured on a CMOS process, which provides low power dissipation yet gives high switching speed and very low on resistance allowing the inputs to be connected to the outputs without adding propagation delay or generating additional ground bounce noise.
The ADG3257 operates from a single 3.3 V/5 V supply. The control logic for each switch is shown in the Truth Table in the data sheet. These switches are bi-directional when ON. In the OFF condition, signal levels up to the supplies are blocked.
This Bus Switch is suited to both switching and level translation application. It may be used in applications requiring level translation from 3.3 V to 2.5V when powered from 3.3 V. Additionally, with a diode connected in series with 5 V VDD, the ADG3257 may also be used in applications requiring 5 V to 3.3 V level translation.
- 0.1 ns propagation delay through switch.
- 2 Ω switches connect inputs to outputs.
- Bidirectional operation.
- Ultralow power dissipation.
- 16-lead QSOP package.
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
Switching in USB Consumer Applications1/1/2006 Analog Dialogue
Data-acquisition system uses fault protection4/15/2004
Enhanced Multiplexing for MEMS Optical Cross Connects8/1/2003
Bus Switches for Speed, Safety, and Efficiency: What They Are and What You Should Know About Them11/1/2002 Analog Dialogue
Tools & Simulations
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|ADG3257BRQZ||Material Declaration||Reliability Data||16-Lead QSOP|
|ADG3257BRQZ-REEL||Material Declaration||Reliability Data||16-Lead QSOP|
|ADG3257BRQZ-REEL7||Material Declaration||Reliability Data||16-Lead QSOP|
|Wafer Fabrication Data|
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Sample & Buy
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Please see the latest communication from our CCO regarding lead times.
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.