ATION EVALU HEET DATA FOLLO 400MHz 2500MHz SiGe Ultra-Low-Noise A
|
|
|
Top Searches for this datasheet
19-1384; 2/99
ATION EVALU HEET DATA FOLLO
400MHz 2500MHz SiGe Ultra-Low-Noise Amplifiers
Wide Operating Frequency Range MAX2640: 400MHz 1500MHz MAX2641: 1400MHz 2500MHz Noise Figure MAX2640: 0.9dB 900MHz MAX2641: 1.2dB 1575MHz 1.3dB 1900MHz 1.5dB 2450MHz High Gain MAX2640: 15.1dB 900MHz MAX2641: 15.7dB 1575MHz 14.4dB 1900MHz 13.5dB 2450MHz High Reverse Isolation MAX2640: 40dB 900MHz MAX2641: 31dB 1575MHz 30dB 1900MHz 24dB 2450MHz +2.7V +5.5V Single-Supply Operation 3.5mA Supply Current Ultra-Small SOT23-6 Package
General Description
MAX2640/MAX2641 low-cost, ultra-low-noise amplifiers designed applications cellular, PCS, GPS, 2.4GHz frequency bands. Operating from single +2.7V +5.5V supply, these devices consume only 3.5mA current while providing noise figure, high gain, high input IP3, operating frequency range that extends from 400MHz 2500MHz. MAX2640 optimized 400MHz 1500MHz applications, with typical performance 15.1dB gain, input -10dBm, noise figure 0.9dB 900MHz. MAX2641 optimized 1400MHz 2500MHz applications, with typical performance 14.4dB gain, input -4dBm, noise figure 1.3dB 1900MHz. These devices internally biased, eliminating need external bias resistors chokes. typical application, only external components needed two-element input match, input output blocking capacitors, bypass capacitor. MAX2640/MAX2641 designed high-frequency, low-noise, advanced silicon-germanium process offered space-saving 6-pin SOT23 package.
MAX2640/MAX2641
Applications
400MHz/900MHz/2.4GHz Radios Cellular/PCS Handsets Receivers Cordless Phones Wireless LANs Wireless Data
PART MAX2640EUT-T MAX2641EUT-T
Ordering Information
TEMP. RANGE -40°C +85°C -40°C +85°C PINPACKAGE SOT23-6 SOT23-6 MARK AAAV AAAW
Configuration appears data sheet.
Typical Operating Circuits
BIAS GENERATOR RFIN RFIN VALUE VALUE VALUE VALUE (pF) (pF) (pF) MAX2640 MAX2641 (pF) FREQUENCY (MHz) 1575 1900 2450 VALUE VALUE (nH) (pF) 9.85 2.55 1.65 VALUE 6.8nH
MAX2640/1
*The series inductor replaced transmission line appropriate impedance electrical length.
Maxim Integrated Products
free samples latest literature: http://www.maxim-ic.com, phone 1-800-998-8800. small orders, phone 1-800-835-8769.
400MHz 2500MHz SiGe Ultra-Low-Noise Amplifiers MAX2640/MAX2641
ABSOLUTE MAXIMUM RATINGS
.-0.3V RFIN Power source) (Note .+5dBm Continuous Power Dissipation +70°C) SOT23-6 (derate 8.7mW/°C above +70°C).696mW Operating Temperature Range .-40°C +85°C Maximum Junction Temperature .+150°C Storage Temperature Range .-65°C +160°C Lead Temperature (soldering, 10sec) .+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
Note must AC-coupled with blocking capacitor.
ELECTRICAL CHARACTERISTICS
(VCC +2.7V +5.5V, TMIN TMAX, unless otherwise noted. Typical values +3.0V, +25°C.) PARAMETER Operating Supply Voltage Operating Supply Current +25°C -40°C +85°C CONDITIONS UNITS
ELECTRICAL CHARACTERISTICS
(VCC +3.0V, PRFIN -34dBm, +25°C, unless otherwise noted.) (Notes PARAMETER MAX2640 (fRFIN 900MHz) RFIN Frequency Range Gain Gain Variation Over Temperature Noise Figure Input Return Loss Output Return Loss Reverse Isolation Input Gain Compression Point Input Third-Order Intercept Point MAX2641 (fRFIN 1900MHz) RFIN Frequency Range Gain Gain Variation Over Temperature Noise Figure Input Return Loss Output Return Loss Reverse Isolation Input Gain Compression Point Input Third-Order Intercept Point (Note TMIN TMAX (Note 1400 12.4 14.4 2500 (Note TMIN TMAX (Note 12.8 15.1 1500 CONDITIONS UNITS
400MHz 2500MHz SiGe Ultra-Low-Noise Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(VCC +3.0V, PRFIN -34dBm, +25°C, unless otherwise noted.) (Notes PARAMETER MAX2641 (fRFIN 1575MHz) Gain Noise Figure Input Return Loss Output Return Loss Reverse Isolation Input Gain Compression Point Input Third-Order Intercept Point MAX2641 (fRFIN 2450MHz) Gain Noise Figure Input Return Loss Output Return Loss Reverse Isolation Input Gain Compression Point Input Third-Order Intercept Point (Note (Note 13.5 -2.5 (Note (Note 15.7 +1.4 CONDITIONS UNITS
MAX2640/MAX2641
Note Guaranteed design characterization. Note Measured using typical operating circuit. Input output impedance matching networks were optimized best simultaneous gain noise-figure performance. Note External component circuit losses degrade noise-figure performance. Specification excludes external component circuit board losses. Note Measured with input tones, 899MHz, 901MHz, both -34dBm tone. Note Measured with input tones, 1899MHz, 1901MHz, both -34dBm tone. Note Measured with input tones, 1574MHz, 1576MHz, both -34dBm tone. Note Measured with input tones, 2449MHz, 2451MHz, both -34dBm tone.
Typical Operating Characteristics
(VCC +3V, PRFIN -34dBm, Typical Operating Circuits, +25°C, unless otherwise noted.)
MAX2640 SUPPLY CURRENT SUPPLY VOLTAGE
MAX2640-01
MAX2640 MATCHED 900MHz GAIN FREQUENCY
-40°C GAIN (dB) +25°C +85°C
MAX2640-01
MAX2640 MATCHED 900MHz NOISE FIGURE FREQUENCY
MAX2640-03
+85°C (mA) +25°C -40°C
NOISE FIGURE (dB)
+85°C
+25°C -40°C
1000 FREQUENCY (MHz)
1000
FREQUENCY (MHz)
400MHz 2500MHz SiGe Ultra-Low-Noise Amplifiers MAX2640/MAX2641
Typical Operating Characteristics (continued)
(VCC +3V, PRFIN -34dBm, Typical Operating Circuits, +25°C, unless otherwise noted.)
MAX2640 MATCHED 900MHz INPUT RETURN LOSS OUTPUT RETURN LOSS FREQUENCY
MAX2640-04
MAX2640 MATCHED 900MHz REVERSE ISOLATION FREQUENCY
MAX2640-05
MAX2641 SUPPLY CURRENT SUPPLY VOLTAGE
MAX2640-06
REVERSE ISOLATION (dB)
+85°C (mA) +25°C -40°C
RETURN LOSS (dB)
INPUT RETURN LOSS
OUTPUT RETURN LOSS FREQUENCY (MHz) 1000 1000 FREQUENCY (MHz)
MAX2641 MATCHED 1900MHz GAIN FREQUENCY
MAX2640-07
MAX2641 MATCHED 1900MHz NOISE FIGURE FREQUENCY
MAX2640-08
-40°C GAIN (dB)
NOISE FIGURE (dB)
+85°C
+85°C +25°C
+25°C -40°C
1800 1840 1880 1920 1960 2000 FREQUENCY (MHz)
1800 1840 1880 1920 1960 2000 FREQUENCY (MHz)
MAX2641 MATCHED 1900MHz INPUT RETURN LOSS OUTPUT RETURN LOSS FREQUENCY
MAX2640-09
MAX2641 MATCHED 1900MHz REVERSE ISOLATION FREQUENCY
MAX2640-10
RETURN LOSS (dB) 1800 1850 1900 FREQUENCY (MHz) 1950 OUTPUT RETURN LOSS INPUT RETURN LOSS
REVERSE ISOLATION (dB)
2000
1800
1840
1880
1920
1960
2000
FREQUENCY (MHz)
400MHz 2500MHz SiGe Ultra-Low-Noise Amplifiers
Description
NAME RFIN RFOUT FUNCTION Amplifier Input. AC-couple this with blocking capacitor. recommended input matching network (see Typical Operating Circuit). Ground. optimum performance, provide inductance connection ground plane. Amplifier Output. recommended series blocking matching capacitor (see Typical Operating Circuit). Supply Voltage. Bypass ground directly supply pin. value bypass capacitor determined lowest operating frequency. Additional bypassing necessary long lines (see Typical Operating Circuit).
MAX2640/MAX2641
Detailed Description
MAX2640 MAX2641 ultra-low-noise amplifiers that operate with input frequency ranges 400MHz 1500MHz (MAX2640) 1400MHz 2500MHz (MAX2641). These devices available SOT23-6 packages contain internal bias circuitry minimize number required external components. Their small size external component count make them ideal applications where board space limited.
Applications Information
External Matching Components
MAX2640/MAX2641 easy use, generally requiring only five external components shown Typical Operating Circuit. reduce external component count further, replace external inductors with microstrip transmission lines. high reverse isolation allows tuning input matching network without affecting output match, vice versa. Select input output matching networks obtain desired combination gain, noise figure, return loss performance. Typical Operating Circuits show recommended input output matching networks MAX2640/MAX2641 900MHz 1900MHz, respectively. These values optimized best simultaneous gain, noise figure, return loss performance. design matching networks other frequencies, Tables list typical device Sparameters Tables list typical device noise parameters.
400MHz 2500MHz SiGe Ultra-Low-Noise Amplifiers MAX2640/MAX2641
Table MAX2640 Typical Scattering Parameters +3V, +25°C
FREQUENCY (MHz) 1000 1100 1200 1300 1400 1500 0.907 0.882 0.858 0.832 0.810 0.788 0.771 0.749 0.735 0.720 0.702 0.688 PHASE -35.1 -43.1 -50.8 -58.1 -64.9 -71.0 -76.6 -82.3 -88.0 -93.4 -98.8 -104.9 4.62 4.70 4.76 4.80 4.85 4.77 4.74 4.55 4.48 4.24 4.17 3.81 PHASE 109.1 90.4 70.7 50.6 29.5 -12.0 -32.4 -53.4 -75.9 -94.9 -117.5 0.001 0.001 0.001 0.002 0.004 0.005 0.007 0.010 0.013 0.015 0.021 0.024 PHASE 13.5 64.7 55.2 39.4 64.2 36.3 28.0 12.3 -10.6 -28.2 -42.9 -59.8 0.302 0.33 0.352 0.365 0.384 0.396 0.412 0.436 0.455 0.469 0.482 0.489 PHASE 108.4 93.6 81.5 69.4 56.8 44.7 33.5 21.9 10.7 -0.2 -9.9 -20.2
Table MAX2641 Typical Scattering Parameters +3V, +25°C
FREQUENCY (MHz) 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 0.734 0.717 0.695 0.678 0.661 0.646 0.632 0.620 0.610 0.604 0.603 PHASE -75.5 -80.3 -85.3 -90.6 -96.6 -102.6 -108.8 -114.0 -119.4 -124.6 -128.4 4.397 4.209 4.193 3.876 3.801 3.456 3.302 2.981 2.781 2.430 2.118 PHASE -90.5 -109.8 -131.6 -150.0 -173.5 166.9 146.4 123.6 105.3 82.9 64.7 0.013 0.016 0.018 0.021 0.023 0.026 0.028 0.029 0.033 0.032 0.030 PHASE -80.3 -91.9 -116.5 -128.7 -150.6 -166.6 171.7 150.7 132.2 111.2 95.7 0.535 0.514 0.513 0.510 0.493 0.470 0.431 0.403 0.374 0.338 0.316 PHASE 17.7 -0.5 -10.6 -21.6 -32.0 -43.4 -56.1 -69.4 -86.2 -98.3
400MHz 2500MHz SiGe Ultra-Low-Noise Amplifiers MAX2640/MAX2641
Table MAX2640 Typical Noise Parameters +3V, +25°C
FREQUENCY (MHz) 1000 1100 1200 1300 1400 1500 fMIN (dB) 0.66 0.69 0.72 0.75 0.78 0.82 0.85 0.89 0.93 0.97 1.01 1.06 0.56 0.54 0.51 0.48 0.46 0.43 0.40 0.37 0.35 0.32 0.29 0.26 ANGLE 12.5 11.9 11.3 10.8 10.2
Table MAX2641 Typical Noise Parameters +3V, +25°C
FREQUENCY (MHz) 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 fMIN (dB) 1.02 1.05 1.08 1.10 1.14 1.17 1.20 1.23 1.27 1.30 1.34 0.43 0.40 0.38 0.36 0.32 0.30 0.28 0.25 0.22 0.19 0.17 ANGLE 12.4 11.8 11.3 10.8 10.3
Layout Power-Supply Bypassing
properly designed board essential RF/microwave circuit. sure controlled impedance lines high-frequency inputs outputs. power supply should bypassed with decoupling capacitors located close device pins. long lines, necessary additional decoupling capacitors. These additional capacitors located further away from device package.
Proper grounding pins essential. board uses topside ground, connect directly pins. board where ground plane component side, best technique connect board with plated through-hole close package.
400MHz 2500MHz SiGe Ultra-Low-Noise Amplifiers MAX2640/MAX2641
Configuration
VIEW
RFIN
MAX2640 MAX2641
RFOUT
SOT23-6
Package Information
6LSOT.EPS
Other recent searches
SIR74 - SIR74 SIR74 Datasheet
IDT71F432 - IDT71F432 IDT71F432 Datasheet
DTC114YKA - DTC114YKA DTC114YKA Datasheet
CY62127BV - CY62127BV CY62127BV Datasheet
CIT013 - CIT013 CIT013 Datasheet
AV3904 - AV3904 AV3904 Datasheet
2SB905 - 2SB905 2SB905 Datasheet
2SD1220 - 2SD1220 2SD1220 Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
