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LTC6433-15 - Low Frequency to 1.4GHz 50Ω Gain Block IF Amplifier

The LTC®6433-15 is a gain-block amplifier with excellent linearity at frequencies below 100kHz to beyond 1000MHz and with low associated output noise.

The unique combination of high linearity, low noise and low power dissipation makes this an ideal candidate for many signal-chain applications. The LTC6433-15 is easy to use, requiring a minimum of external components. It is internally input/output matched to 50Ω and it draws only 95mA from a single 5V supply.

The LTC6433-15 operates over a wide bandwidth. A single demonstration circuit offers flat gain from 100kHz to 1GHz.

While this device is not capable of DC coupled operation, users can define the low frequency cut-off by appropriate choice of external components.

On-chip bias and temperature compensation maintain performance over environmental changes.

The LTC6433-15 uses a high performance SiGe BiCMOS process for excellent repeatability compared with similar GaAs amplifiers. All A-grade LTC6433-15 devices are tested and guaranteed for OIP3 at 150MHz. The LTC6433-15 is housed in a 4mm × 4mm 24-lead QFN package with an exposed pad for thermal management and low inductance.

Features Low Frequency to 1.4GHz Bandwidth 100kHz to 1GHz Flat Gain from a Single Demo Circuit Low Frequency Cutoff Is User Defined 15.9dB Power Gain 52dBm OIP3 at 1MHz 47dBm OIP3 at 150MHz NF = 3.22dB at 150MHz 1nV/√Hz Total Input Noise Density at 150MHz S11 < –10dB Up to 1.2GHz S22 < –10dB Up to 1.0GHz >2VP-P Linear Output Swing P1dB =19.2dBm DC Power = 475mW 50Ω Single-Ended Operation Insensitive to VCC Variation A-Grade 100% OIP3 Tested at 150MHz Input/Output Internally Matched to 50Ω Single 5V Supply Unconditionally Stable Typical Application

Applications Single-Ended IF Amplifier ADC Driver CATV Test Equipment Packaging

Demo Boards