MAX2181

FM Automotive Low-Noise Amplifier

Highly Integrated FM Variable-Gain Low-Noise Amplifier Ideal for Use in Automotive FM and FM-Diversity


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Description

The MAX2181 is a highly integrated FM variable-gain low-noise amplifier ideal for use in automotive FM and FM-diversity active antenna applications. The device features an FM signal path, providing 30dB of gain range, controlled by an on-chip power detector. The FM signal path covers 76MHz to 162.5MHz.

The device integrates a voltage regulator and pass transistor, allowing operation using battery voltages in the +6V to +24V range. On-chip thermal protection automatically limits junction temperatures during extreme thermal conditions.

The device is available in a small, 3mm x 3mm, TQFN package and operates over the extended industrial temperature range (-40°C to +85°C).
MAX2181: Simplified Block Diagram MAX2181: Simplified Block Diagram Enlarge+

Key Features

  • +6V to +24V Supply Voltage Range
  • Integrated AGC Function Eliminates External Pin Diodes
  • High Dynamic Range
  • Low-Noise, Sub 3dB Noise Figure
  • Low External BOM
  • Integrated Thermal Protection
  • Small Package (3mm x 3mm TQFN)
  • Integrated Pass Device and Linear Regulator
  • Integrated Power Detector
  • Integrated Antenna Sense

Applications/Uses

  • Automotive Active Antenna
Part NumberRF Freq.
(MHz)
RF Freq.
(MHz)
Noise Figure
(dB)
Gain
(dB)
ISUPPLY
(mA)
Footprint
(mm x mm)
Package/PinsBudgetary
Price
minmaxSee Notes
MAX2181 76162.52.756563.0 x 3.0
TQFN/16
$2.40 @1k
See All Low-Noise Amplifiers (42)
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.


MAX2181EVKIT: Evaluation Kit for the MAX2181

Technical Documents

Tutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs

Quality and Environmental Data

Request Reliability Report for: MAX2181 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX2181ETE/V+
  • MAX2181ETE/V+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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