MAX2640:300MHz to 2500MHz SiGe Ultra-Low-Noise Amplifiers

The MAX2640/MAX2641 are low-cost, ultra-low-noise amplifiers designed for applications in the cellular, PCS, GPS, and 2.4GHz ISM frequency bands. Operating from a single +2.7V to +5.5V supply, these devices consume only 3.5mA of current while providing a low noise figure, high gain, high input IP3, and an operating frequency range that extends from 300MHz to 2500MHz. The MAX2640 is optimized for 300MHz to 1500MHz applications, with a typical performance of 15.1dB gain, input IP3 of -10dBm, and a noise figure of 0.9dB at 900MHz. The MAX2641 is optimized for 1400MHz to 2500MHz applications, with a typical performance of 14.4dB gain, an input IP3 of -4dBm, and a noise figure of 1.3dB at 1900MHz. These devices are internally biased, eliminating the need for external bias resistors and chokes. In a typical application, the only external components needed are a two-element input match, input and output blocking capacitors, and a VCC bypass capacitor. The MAX2640/MAX2641 are designed on a high-frequency, low-noise, advanced silicon-germanium process and are offered in the space-saving 6-pin SOT23 package.

Key Features
  • Wide Operating Frequency Range
    • MAX2640: 300MHz to 1500MHz
    • MAX2641: 1400MHz to 2500MHz
  • Low Noise Figure
  • High Gain
  • High Reverse Isolation
  • +2.7V to +5.5V Single-Supply Operation
  • Low 3.5mA Supply Current
  • Ultra-Small SOT23-6 Package
MAX2640, MAX2641: Typical Operating Circuit
MAX2640, MAX2641: Typical Operating Circuit
Applications/Uses
  • 400MHz/900MHz/2.4GHz ISM-Band Radios
  • Cellular/PCS Handsets
  • Cordless Phones
  • GPS Receivers
  • Wireless Data
  • Wireless Local Area Networks (WLANs)
DataSheet
titleDownload file
MAX2640-MAX2641 Data SheetMAX2640-MAX2641.pdf
Parametrics
Part NumberRF Freq.
(MHz)
RF Freq.
(MHz)
Noise Figure
(dB)
Gain
(dB)
Input IP3
(dBm)
ISUPPLY
(mA)
Footprint
(mm x mm)
Package/PinsBudgetary
Price
minmaxSee Notes
MAX264040015000.915.1-103.52.7 x 2.9SOT/6$1.37 @1k
MAX2641140025001.314.4-45.3SOT/6$0.96 @1k
Design kits & evaluation modules
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX2640AUT+ActiveSOT,;6 pin;9 mm²-40°C to +125°CLead Free
MAX2640AUT+TActiveSOT,;6 pin;9 mm²-40°C to +125°CLead Free
MAX2640EUTNo Longer AvailableMAX2640EUT+SOT,;6 pin;9 mm²-40°C to +85°CNo
MAX2640EUT+ActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX2640EUT+TActiveSOT,;6 pin;9 mm²-40°C to +85°CLead Free
MAX2640EUT-TNo Longer AvailableMAX2640EUT+TSOT,;6 pin;9 mm²-40°C to +85°CNo
MAX2640-MAX2641.pdf MAX2641
RF Basics MAX7060
MAX2640.pdf MAX2640
MAX2640-MAX2641.pdf MAX2641