EVALUATION KIT AVAILABLE MAX2640/MAX2641 300MHz to 2500MHz SiGe Ultra-Low-Noise Amplifiers General Description Features Wide Operating Frequency Range The MAX2640/MAX2641 are low-cost, ultra-low-noise MAX2640: 300MHz to 1500MHz amplifiers designed for applications in the cellular, PCS, MAX2641: 1400MHz to 2500MHz GPS, and 2.4GHz ISM frequency bands. Operating from a single +2.7V to +5.5V supply, these devices consume Low Noise Figure MAX2640: 0.9dB at 900MHz only 3.5mA of current while providing a low noise figure, MAX2641: 1.2dB at 1575MHz high gain, high input IP3, and an operating frequency 1.3dB at 1900MHz range that extends from 300MHz to 2500MHz. 1.5dB at 2450MHz The MAX2640 is optimized for 300MHz to 1500MHz High Gain applications, with a typical performance of 15.1dB gain, MAX2640: 15.1dB at 900MHz input IP3 of -10dBm, and a noise figure of 0.9dB at MAX2641: 15.7dB at 1575MHz 900MHz. The MAX2641 is optimized for 1400MHz to 14.4dB at 1900MHz 2500MHz applications, with a typical performance of 13.5dB at 2450MHz 14.4dB gain, an input IP3 of -4dBm, and a noise figure of High Reverse Isolation 1.3dB at 1900MHz. MAX2640: 40dB at 900MHz MAX2641: 31dB at 1575MHz These devices are internally biased, eliminating the need 30dB at 1900MHz for external bias resistors and chokes. In a typical appli- 24dB at 2450MHz cation, the only external components needed are a two- +2.7V to +5.5V Single-Supply Operation element input match, input and output blocking capaci- tors, and a V bypass capacitor. CC Low 3.5mA Supply Current The MAX2640/MAX2641 are designed on a high-frequen- Ultra-Small SOT23-6 Package cy, low-noise, advanced silicon-germanium process and Ordering Information are offered in the space-saving, 6-pin SOT23 package. TEMP PIN- SOFT PART Applications RANGE PACKAGE TOP MARK MAX2640EUT-T -40 C to +85 C 6 SOT23 AAAV 315MHz/400MHz/900MHz/2.4GHz ISM Radios MAX2640EUT+T -40 C to +85 C 6 SOT23 AAAV Cellular/PCS Handsets MAX2640AUT+T -40 C to +125 C 6 SOT23 AAAV GPS Receivers MAX2641EUT-T -40 C to +85 C 6 SOT23 AAAW Cordless Phones MAX2641EUT+T -40 C to +125 C 6 SOT23 AAAW Wireless LANs +Denotes a lead(Pb)-free/RoHS-compliant package. Wireless Data T = Tape and reel. Pin Configuration appears at end of data sheet. Typical Operating Circuit V CC C4 C3 V CC C1 C2 C3 C4 Z1* ZM1 FREQUENCY (MHz) ZM2 VALUE VALUE VALUE VALUE VALUE VALUE VALUE BIAS GENERATOR (pF) (pF) (pF) (pF) MAX2640 MAX2641 (nH) (pF) C1 C2 Z1 900 470 3 470 9.85 2 RFIN RF OUT LNA RFIN RF OUT 1575 100 100 470 5.6 1 6.8nH ZM1 MAX2640 ZM2 1900 470 100 470 2.55 1 1pF MAX2641 2450 470 100 470 100 1.65 1 1pF GND *The series inductor Z1 can be replaced by a transmission line of appropriate impedance and electrical length. 19-1384 Rev 4 2/15MAX2640/MAX2641 300MHz to 2500MHz SiGe Ultra-Low-Noise Amplifiers Absolute Maximum Ratings V to GND ...........................................................-0.3V to +6V Operating Temperature Range CC RFIN Power (50 source) (Note 1) .................................+5dBm MAX2640EUT/MAX2641EUT ............................. -40C to +85C Continuous Power Dissipation (T = +70C) MAX2640AUT ................................................... -40C to +125C A SOT23-6 (derate 8.7mW/C above +70C) .................696mW Storage Temperature Range ............................ -65C to +160C Lead Temperature (soldering, 10s) .................................+300C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Note 1: Pin must be AC-coupled with a DC blocking capacitor. CAUTION ESD SENSITIVE DEVICE DC Electrical Characteristics (V = +2.7V to +5.5V, T = -40C to +85C (MAX2640EUT/MAX2641EUT), T = -40C to +125C (MAX2640AUT), unless otherwise CC A A noted. Typical values are at V = +3.0V, T = +25C.) Limits at T = +25C are guaranteed by production test. Limits over temperature CC A A are guaranteed by design and characterization. PARAMETER CONDITIONS MIN TYP MAX UNITS Operating Supply Voltage 2.7 5.5 V T = +25C 3.5 4.7 A T = -40C to +85C A Operating Supply Current 6.4 mA (MAX2640EUT/MAX2641EUT) T = -40C to +125C (MAX2640AUT) 7.8 A RF Electrical Characteristics (V = +3.0V, P = -34dBm, Z = 50, T = +25C, unless otherwise noted.) (Notes 2 and 3) CC RFIN O A PARAMETER CONDITIONS MIN TYP MAX UNITS MAX2640 (f = 900MHz) RFIN RFIN Frequency Range 300 1500 MHz Gain 12.8 15.1 dB T = -40C to +85C (MAX2640EUT) 0.6 1.7 A Gain Variation Over Temperature dB T = -40C to +125C (MAX2640AUT) 0.9 2.5 A Noise Figure (Note 4) 0.9 1.1 dB Input Return Loss -11 dB Output Return Loss -14 dB Reverse Isolation 40 dB Input 1dB Gain Compression Point -22 dBm Input Third-Order Intercept Point (Note 5) -10 dBm MAX2641 (f = 1900MHz) RFIN RFIN Frequency Range 1400 2500 MHz Gain 12.4 14.4 dB Gain Variation Over Temperature T = T to T 0.9 2.4 dB A MIN MAX Noise Figure (Note 4) 1.3 1.5 dB Input Return Loss -12 dB Output Return Loss -12 dB Reverse Isolation 30 dB Input 1dB Gain Compression Point -21 dBm Input Third-Order Intercept Point (Note 6) -4 dBm Maxim Integrated 2 www.maximintegrated.com