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LTC2158-14 Datasheet(PDF) 1 Page - Linear Technology |
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LTC2158-14 Datasheet(HTML) 1 Page - Linear Technology |
1 / 16 page LTC6431-15 1 643115f Typical applicaTion FeaTures DescripTion 50 Ω Gain Block IF Amplifier The LTC®6431-15 is a gain-block amplifier with excellent linearity at frequencies beyond 1000MHz and with low associated output noise. The unique combination of high linearity, low noise and low power dissipation make this an ideal candidate for many signal-chain applications. The LTC6431-15 is easy to use, requiring a minimum of external components. It is internally input/output matched to 50Ω and it draws only 90mA from a single 5V supply. On-chip bias and temperature compensation maintain performance over environmental changes. The LTC6431-15 uses a high performance SiGe BiCMOS process for excellent repeatability compared with similar GaAsamplifiers.AllA-gradeLTC6431-15devicesaretested and guaranteed for OIP3 at 240MHz. The LTC6431-15 is housed in a 4mm × 4mm 24-lead QFN package with an exposedpadforthermalmanagementandlowinductance. Single-Ended IF Amplifier OIP3 vs Frequency applicaTions n 20MHz to 1700MHz Bandwidth n 15.5dB Power Gain n 47dBm OIP3 at 240MHz into a 50Ω Load n NF = 3.33dB at 240MHz n 1nV/√Hz Total Input Noise n S11 < –15dB Up to 1.2GHz n S22 < –15dB Up to 1.2GHz n >2VP-P Linear Output Swing n P1dB = 20.6dBm n DC Power = 450mW n 50Ω Single-Ended Operation n Insensitive to VCC Variation n A-Grade 100% OIP3 Tested at 240MHz n Input/Output Internally Matched to 50Ω n Single 5V Supply n Unconditionally Stable n Single-Ended IF Amplifier n ADC Driver n CATV L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 643115 TA01a LTC6431-15 RSOURCE 50 VCC = 5V 1000pF 1000pF 5V RF CHOKE, 560nH RLOAD 50 FREQUENCY (MHz) 0 44 46 48 42 40 400 800 200 600 1000 38 36 50 643115 TA01b VCC = 5V, T = 25°C POUT = 2dBm/TONE fSPACE = 1MHz ZIN = ZOUT = 50 |
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