AD8334: Quad VGA with Ultralow Noise Preamplifier and Programmable R_IN

Product Status:Recommended for New Designs

AD8334 Data Sheet Rev F, 04/2008 (pdf 861kB)

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Product Details

Product Status:Recommended for New Designs

Check Price and Availability Add to Signal Chain Designer Explore in Signal Chain Designer

Model	Package	Price* (100-499)	Price* 1000 pcs
AD8334ACPZ Status: Production	64 ld LFCSP (9x9mm, 4.70mm exposed pad)	$18.17	$14.66
AD8334ACPZ-REEL Status: Production	64 ld LFCSP (9x9mm, 4.70mm exposed pad)	-	$14.66
AD8334ACPZ-REEL7 Status: Production	64 ld LFCSP (9x9mm, 4.70mm exposed pad)	$18.17	$14.66

The AD8334 is an ultralow noise, quad channel linear-in-dB variable gain amplifier (VGA). Although optimized for ultrasound systems, it may be used as a low noise variable gain control in any application whose operating frequency is less than 100 MHz.

The AD8334 is a quad version of the single AD8331 and dual AD8332.

For more information on specs, please see the AD8332 datasheet.

Applications

Ultrasound and Sonar
High Performance AGC Systems
Low IF Signal Processing
High Speed ADC Driver

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FEATURES and BENEFITS

Ultralow Input Noise at Maximum Gain
Active Termination Match, Selected with an External Resistor
Ultra Low Noise LNA Pre-amp
Bandwidth: 100 MHz (-3 dB)
Wide Gain Range with Programmable
Post-amp

Fully Differential Signal Path after LNA
Selectable Output Clamping Level
Trimmed for Gain, Offset and Clamping Level
Optimized for 10-/12-Bit ADCs
Single +5 V Supply

Functional Block Diagram for AD8334

Typical Applications and Other Diagrams

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Documentation

Title	Content Type	File Type
AD8331/AD8332/AD8334: Ultralow Noise VGAs with Preamplifier and Programmable R_IN Data Sheet (Rev F, 04/2008) (pdf, 861 kB)	Data Sheets	PDF
Design and Operation of Automatic Gain Control Loops for Receivers in Modern Communication Systems (pdf, 129 kB)	Tutorials	PDF
Ultrasound System Considerations and their Impact on Front-End Components (pdf) (Analog Dialogue, Vol 36, No. 3)	Analog Dialogue	PDF
How Ultrasound System Considerations Influence Front-End Component Choice by Eberhard Brunner, Analog Devices, Inc. (Analog Dialogue Vol. 36, May-July 2002)	Technical Articles	HTML
Variable Gain Amplifier Selection Table (pdf, 68 kB)	Product Selection Guide	PDF
Analog Front End Improves Ultrasound Images (eeProductCenter, 9/19/2005)	Product Reviews	HTML
High-Speed, 14-Bit Quad ADC Targets Medical Imaging Applications (RF Design, June 1, 2006)	Product Reviews	HTML
ADT7301: Accurate, SPI-Compatible Temperature Sensor in SOT Package (htm) (analogZone September 1, 2003)	Product Reviews	HTM
RF Source Booklet (pdf, 815 kB) RF IC Product Overview - Version O (11/2012)	Overview	PDF
Leading Inside Advertorials: Solving Dynamic Range Problems in Analog Systems (pdf, 75 kB)	Overview	PDF
Medical Applications Booklet (pdf, 970 kB) Technical Presentation (ppt)	Overview	HTML
What are Variable Gain Amplifiers (VGA's) and how are they used?	FAQs/RAQs	HTML
RAQs index	Rarely Asked Questions	HTML
Glossary of EE Terms	Glossary	HTML

Design Tools,Models,Drivers & Software

Title	Content Type	File Type
AD8334 SPICE Macro-Model AD8334 (LNA) SPICE Macro-Model, Rev 0, 2002 AD8334 (VGA) SPICE Macro-Model, Rev 0, 2002	SPICE Models	HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

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AD8334 Model Options

Print Table

Model	Package	Pins	Temp. Range	Packing, Qty	Price*(100-499)	Price*1000 pcs	RoHS	View PCN/ PDN	Check Inventory/ Purchase/Sample
AD8334ACPZ Status: Production	64 ld LFCSP (9x9mm, 4.70mm exposed pad)	64	Ind	Tray, 260	$18.17	$14.66	Y Material Info	PCN	Purchase Sample
AD8334ACPZ-REEL Status: Production	64 ld LFCSP (9x9mm, 4.70mm exposed pad)	64	Ind	Reel, 2500	-	$14.66	Y Material Info	PCN	Purchase
AD8334ACPZ-REEL7 Status: Production	64 ld LFCSP (9x9mm, 4.70mm exposed pad)	64	Ind	Reel, 750	$18.17	$14.66	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.

AD8334 Evaluation Board

Print Table

Model	Description	Price	RoHS	View PCN/ PDN	Check Inventory/ Purchase/Sample
AD8334-EVALZ Status: Production	Evaluation Board	$294.19	Yes	-

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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AD8334: Quad VGA with Ultralow Noise Preamplifier and Programmable R_IN