2.5GHz, +20dBm Power Amplifier IC in UCSP Package

Industry's Smallest Bluetooth PA Provides Digital Power Control
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Active: In Production.


The MAX2240 single-supply, low-voltage power amplifier (PA) IC is designed specifically for applications in the 2.4GHz to 2.5GHz frequency band. The PA is compliant with Bluetooth®, HomeRF, and 802.11 standards, as well as other FSK modulation systems. The PA provides a nominal +20dBm (100mW) output power in the highest power mode.

The PA includes a digital power control circuit to greatly simplify control of the output power. Four digitally controlled output power levels are provided: from +3dBm to +20dBm. A digital input controls the active or shutdown operating modes of the PA. In the shutdown mode, the current reduces to 0.5µA.

The IC integrates the RF input and interstage matching to simplify application of the IC. Temperature and supply-independent biasing are also included to provide stable performance under all operating conditions.

The IC operates from a +2.7V to +5V single-supply voltage. No negative bias voltage is required. Current consumption is a modest 105mA at the highest power level.

The part is packaged in the UCSP™ package significantly reducing the required PC board area. The chip occupies only a 1.56mm x 1.56mm area. The 3 x 3 array of solder bumps are spaced with a 0.5mm bump pitch.

Data Sheet

Download this datasheet in PDF formatDownload Rev 3 (PDF, 116.3kB)
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An evaluation board is available: MAX2240EVKIT

Key Features

  • 2.4GHz to 2.5GHz Frequency Range
  • High +20dBm Output Power
  • 2-Bit Digital Power Control: Four Output Levels
  • Integrated Input Match to 50Ω
  • Low 105mA Operating Current
  • 0.5µA Low-Power Shutdown Mode Current
  • +2.7V to +5V Single-Supply Operation
  • Miniature Chip-Scale Package (1.56mm x 1.56mm)


  • 2.4GHz ISM Proprietary Radios
  • 802.11 FHSS WLAN
  • Bluetooth®
  • HomeRF

Key Specifications:

Power Amplifiers/Drivers
Part Number Freq.
Efficiency (%) Low Pwr. Shutdn Footprint
(mm x mm)
min max See Notes
MAX2240  2400 2500 20 23 Yes 1.6 x 1.6 $2.51 @1k
See All Power Amplifiers/Drivers (8)

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.


MAX2240: Typical Application Circuit
Typical Application Circuit

More Information

Topmark Coding MAX2240
New Product Press Release   2000-03-23 ]

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Document Ref.: 19-1624 Rev 3; 2011-09-29
This page last modified: 2011-09-29