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AM/FM Car Antenna Low-Noise Amplifier

Industry-Leading AM/FM LNA with Adjustable Gain Control Saves Space, Cost and Improves Functionality
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Status Explanations for product status codes

Part Number Status
MAX2180 Active: In Production. See Ordering Information for details.


The MAX2180 is a highly integrated AM/FM variable-gain low-noise amplifier ideal for use in automotive active antenna applications. The device features separate AM and FM signal paths, each providing 30dB of gain range, controlled by individual on-chip power detectors. The AM signal path covers a 148kHz to 30MHz input frequency range, while the FM signal path covers 65MHz to 162.5MHz.

The device integrates a voltage regulator and pass transistor, allowing operation using battery voltages in the +8V to +24V range. On-chip thermal protection automatically limits junction temperatures during extreme thermal conditions.

The device is available in a small, 4mm x 4mm, TQFN package and operates over the extended industrial temperature range (-40°C to +85°C).

Data Sheet

Key Features

  • +8V to +24V Supply Voltage Range
  • Integrated AGC Function Eliminates External Pin Diodes
  • High Dynamic Range
  • Low-Noise Design
  • Low External BOM
  • Integrated Thermal Protection
  • Small Package (4mm x 4mm TQFN)


  • Automotive Active Antenna

Key Specifications:

Low-Noise Amplifiers
Part Number RF Freq.
RF Freq.
Noise Figure
(mm x mm)
min max See Notes
MAX2180  0.148 162.5 3.7 30 78 4.0 x 4.0 $3.31 @1k
See All Low-Noise Amplifiers (37)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

More Information

New Product Press Release   2010-07-26 ]

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Document Ref.: 19-5322 Rev 0; 2010-07-16
This page last modified: 2013-07-02