Features and Benefits
- Wide Operating Frequency Range
- MAX2640: 300MHz to 1500MHz
- MAX2641: 1400MHz to 2500MHz
- Low Noise Figure
0.9dB at 900MHz 1.2dB at 1575MHz 1.3dB at 1900MHz 1.5dB at 2450MHz
- High Gain
15.1dB at 900MHz 15.7dB at 1575MHz 14.4dB at 1900MHz 13.5dB at 2450MHz
- High Reverse Isolation
40dB at 900MHz 31dB at 1575MHz 30dB at 1900MHz 24dB at 2450MHz
- +2.7V to +5.5V Single-Supply Operation
- Low 3.5mA Supply Current
- Ultra-Small SOT23-6 Package
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.
- 400MHz/900MHz/2.4GHz ISM-Band Radios
- Cellular/PCS Handsets
- Cordless Phones
- GPS Receivers
- Wireless Data
- Wireless Local Area Networks (WLANs)
Product Lifecycle 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.
Documentation & Resources
MAX2640 Reliability Data1/12/202337K
RF Basics Guide4/12/2012
PCBs Layout Guidelines for RF & Mixed-Signal9/14/2011
Tuning the MAX2640 Low-Noise Amplifier (LNA) for a 470MHz to 770MHz ISDB-T Application5/31/2007
S-Parameter Measurements and Stability Analysis for the MAX2640 LNA9/8/2005
Noise Figure Measurement Methods and Formulas11/21/2003
MAX2640 LNA Operates at 315MHz for Automotive Keyless Entry Applications9/22/2003
Improving Receiver Sensitivity with External LNA1/7/2003
LNA Tuned for the 433.05MHz to 434.79MHz European ISM Band9/27/2002
Silicon Germanium (SiGe) Technology Enhances Radio Front-End Performance9/2/2002
Impedance Matching and Smith Chart Impedance7/22/2002
Tools & Simulations
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.
Support & Discussions
Sample & Buy
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Please see the latest communication from our CCO regarding lead times.
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.