AD8369

PRODUCTION

600 MHz, 45 dB Digitally Controlled Variable Gain Amplifier

Data Sheet (Rev. A) Product Selection Table
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Overview

  • 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

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 Ω or 1 K Ω, 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.

AD8369
600 MHz, 45 dB Digitally Controlled Variable Gain Amplifier
AD8369 Functional Block Diagram AD8369 pin configuration
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Documentation

Data Sheet 1

Technical Articles 1

Evaluation Design File 1

Frequently Asked Question 1

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Software Resources

Evaluation Software 1

AD8369 Evaluation Board Software

 

Tools & Simulations

ADIsimRF

ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

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ADIsimPLL™

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.

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Sys-Parameter Models for Keysight Genesys

Sys-Parameter models contain behavioral parameters, such as P1dB, IP3, gain, noise figure and return loss, which describe nonlinear and linear characteristics of a device.

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S-Parameter 1

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
EVAL-AD8369

Evaluating the AD8369, 600MHz, 45dB Digitally Controlled Variable Gain Amplifier

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Features and Benefits

Product Details

The AD8369-ACE-EVALZ evaluation board allows the manual control of the AD8369 through the USB port on a Microsoft® Windows® PC via a SDP-S interface board.

Additional information on the AD8369 is provided in the AD8369 data sheet. Consult the data sheet in conjunction with this user guide when using the AD8369-ACE-EVALZ evaluation board.
EVAL-AD8369
Evaluating the AD8369, 600MHz, 45dB Digitally Controlled Variable Gain Amplifier
EVAL-AD8369 Board Photo Angle View EVAL-AD8369 Board Photo Top View EVAL-AD8369 Board Photo Bottom View

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