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AD8369:  600 MHz, 45 dB Digitally Controlled Variable Gain Amplifier

Product Details

The AD8369 is a high performance, digitally controlled variable gain amplifier, designed to be used at IF frequencies within cellular receivers.

The device features a 4-bit digitally controlled gain control interface configurable for either parallel or 3 wire serial control. The gain control range spans 45 dB adjustable in 3 dB increments.

The AD8369 is ideally suited to be used in digital IF receivers and is fully specified for operation at common IF frequencies 70 / 140 / 190 / 240 / 380 MHz. The gain stability and flatness is below 0.1 dB over a 20 MHz channel bandwidth at 380 MHz. Coupled with the low distortion and the ability to drive 200 or 1 K, the AD8369 allows optimal placement and flexibility as a high IF gain control element.

The AD8369 is fabricated on an advanced silicon bipolar process, operating on a single 3 or 5 volt supply, packaged in space saving 16-lead thin shrunk small outline (TSSOP) package and fully specified over the –40ºC to +85ºC temperature range.


  • Wide bandwidth 600 MHz (-3 dB bandwidth)
  • Digitally controlled gain in 3 dB steps
  • 4-bit parallel or 3-wire serial interface
  • Gain control range 45 dB with max gain 40 dB
  • Flat gain response out to 380 MHz, <0.2 dB over 20 MHz signal bandwidth
  • High linearity output IP3 19.5 dBm @ 70 MHz
  • Single ended 200 Ω input and output impedance
  • Small footprint 16-lead TSSOP package

Functional Block Diagram for AD8369


Other Wireless VGA products ... AD8367 - 500 MHz Single Ended, Analog Controlled VGA


Title Content Type File Type
AD8369: 45-dB Digital VGA LF to 600MHz Data Sheet (Rev 0, 01/2003) (pdf, 968 kB) Data Sheets PDF
Design and Operation of Automatic Gain Control Loops for Receivers in Modern Communication Systems  (pdf, 129 kB) Tutorials PDF
Integrated VGA Aids Precise Gain Control  (pdf, 194 kB)
by Phillip Halford and Eamon Nash, Analog Devices, Inc. (Microwaves & RF, March 2002)
Technical Articles PDF
Variable Gain Amplifier Selection Table  (pdf, 68 kB) Product Selection Guide PDF
High-speed ADCs suit communications applications
(RF Design, 4/5/2006)
Product Reviews HTML
RF Source Booklet  (PDF, 4353 kB)
RF IC Product Overview - Version P (02/2014)
Overview PDF
Leading Inside Advertorials: Solving Dynamic Range Problems in Analog Systems  (pdf, 75 kB) Overview PDF
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
ADI’s ADIsimRF design tool provides calculations for the most important parameters within the RF signal chain, including cascaded gain, noise figure, IP3, P1dB, and total power consumption.
ADIsim Design/Simulation Tools HTML
ADIsimPLL™- Version 3.60.10
ADIsimPLL enables the rapid and reliable evaluation of new high performance PLL products from ADI. It is the most comprehensive PLL Synthesizer design and simulation tool available today. Simulations performed include all key non-linear effects that are significant in affecting PLL performance. ADIsimPLL removes at least one iteration from the design process, thereby speeding the design- to-market.
ADIsim Design/Simulation Tools HTML

Evaluation Kits & Symbols & Footprints

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

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.

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Price, packaging, availability

AD8369 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
AD8369ARUZ Status: Production 16 ld TSSOP 16 Ind Tube, 96 $5.04 $4.25 Y  Material Info PCN Purchase Sample
AD8369ARUZ-REEL7 Status: Production 16 ld TSSOP 16 Ind Reel, 1000 $5.04 $4.25 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.

AD8369 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
AD8369-EVALZ Status: Production Evaluation Board $100.19 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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