ADI LTC6430BIUF-20#TRPBF

The LTC6430-20 is a differential gain block amplifier designed to drive high resolution, high speed ADCs with excellent linearity beyond 1000MHz and with low associated output noise. The LTC6430-20 operates from a single 5V power supply and consumes only 850mW. In its differential configuration, the LTC6430-20 can directly drive the differential inputs of an ADC. Using 1:2 baluns, the device makes an excellent 50Ω wideband balanced amplifier. While using 1:1.33 baluns, the device creates a high fidelity 40MHz to 1000MHz 75Ω CATV amplifier. The LTC6430-20 is designed for ease of use, requiring a minimum of support components. The device is internally matched to 100Ω differential source/load impedance. Onchip bias and temperature compensation ensure consistent performance over environmental changes. The LTC6430-20 uses a high performance SiGe BiCMOS process for excellent repeatability compared with similar GaAs amplifiers. All A-grade LTC6430-20 devices are tested and guaranteed for OIP3 at 380MHz. The LTC6430-20 is housed in a 4mm × 4mm, 24-Lead QFN package with an exposed pad for thermal management and low inductance.

• 51.0dBm OIP3 at 240MHz into a 100Ω Diff Load
• NF = 2.9dB at 240MHz
• 20MHz to 2060MHz –3dB Bandwidth
• 20.8dB Gain
• A-Grade 100% OIP3 Tested at 380MHz
• 0.6nV/√Hz Total Input Noise
• S11 < –10dB Up to 1.4GHz
• S22 < –10dB Up to 1.4GHz

• 2.75VP-P Linear Output Swing

• P10B = 24.0dBm
• Insensitive to VCC Variation
• 100Ω Differential Gain-Block Operation
• Input/Output Internally Matched to 100Ω Diff
• Single 5V Supply
• DC Power = 850mW
• 4mm × 4mm, 24-Lead QFN Package

• Differential ADC Driver
• Differential IF Amplifier
• OFDM Signal Chain Amplifier
• 50Ω Balanced IF Amplifier
• 75Ω CATV Amplifier
• 700MHz to 800MHz LTE Amplifier
• Low Phase Noise Clock or LO Amplifier