Overview

Features and Benefits

  • 250MHz to 4000MHz RF Frequency Range
  • Integrates Two Analog Attenuators in One Monolithic Device
  • Flexible Attenuation-Control Ranges
    • 22dB (per Attenuator)
    • 44dB (Both Attenuators Cascaded)
  • 2.4dB 1500MHz Insertion Loss (per Attenuator)
  • Linear dB/V Analog Control Response Curve Simplifies Automatic Leveling Control and Gain-Trim Algorithms
  • Excellent Attenuation Flatness Over Wide Frequency Ranges and Attenuation Settings
  • Low 7.3mA Supply Current
  • Single +5.0V Supply Voltage

Product Details

The MAX19790 is a dual, general-purpose analog voltage variable attenuator (VVA) designed to interface with 50Ω systems operating in the 250MHz to 4000MHz frequency range. Each attenuator includes a control circuit that provides 22dB of attenuation range with a linear control slope of 10dB/V.

Both attenuators share a common analog control and can be cascaded together to yield 44dB of total dynamic range, with a combined linear control slope of 20dB/V.

The IC is a monolithic device designed on one of Maxim's proprietary SiGe BiCMOS processes. The device operates from a single +5.0V supply and is available in a compact, 36-pin thin QFN package (6mm x 6mm x 0.8mm) with an exposed pad. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.

Applications

  • Automatic Level Control (ALC)
  • Broadband System Applications, Including Wireless Infrastructure Digital and Spread-Spectrum Communication Systems
  • General Test Equipment
  • Lineup Gain Trim
  • Microwave Terrestrial Links
  • Receiver Gain Control
  • Temperature Compensation Circuits
  • Transmitter Gain Control
  • VSAT/Satellite Modems
  • WCDMA/LTE, TD-SCDMA/TD-LTE, WiMAX®, cdma2000®, GSM/EDGE and MMDS Base Stations

Product Lifecycle icon-recommended 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.

Tools & Simulations

Software Development

Product Recommendations

MAX19790 Companion Parts

Design Resources

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.

Sample & Buy


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Buy Now Pricing


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