LT6402-6

peculiarity

• 300MHz -3dB 带宽
• 6dB 固定增益
• 低失真：
  49dBm OIP3，-85dBc HD3 (20MHz，2V_P-P)
• 低噪声：
  18.6dB NF，e_n = 3.8nV/√Hz (20MHz)
• 差分输入和输出
• 额外的滤波输出
• 可调输出共模电压
• DC 或 AC 耦合操作
• 所需的支持电路极少
• 小外形、扁平 (高度仅 0.75mm) 16 引脚3mm x 3mm QFN 封装

  description

  ®The LT 6402-6 is a low-distortion, low-noise differential amplifier/ADC driver for applications in the frequency range from DC to 300MHz. The LT6402-6 is designed for ease of use and requires minimal support circuitry. Ultra-low input reference noise and low distortion (either single-ended or differential inputs) make the LT6402-6 an excellent solution for driving high-speed 12-bit and 14-bit ADCs. In addition to the standard unfiltered outputs (+OUT and –OUT), the LT6402-6 features a built-in 75MHz differential low-pass filter and a pair of additional filtered outputs (+OUTFILTERED, -OUTFILTERED) to reduce external filtering elements when driving high-speed ADCs. The output common-mode voltage can be easily set via the VOCM pin, eliminating the need for an additional output transformer or AC-coupled capacitor in many applications. The LT6402-6 is designed to meet the demanding requirements of communications transceiver applications. It can be used as a differential ADC driver, a general-purpose differential gain part, or in other applications where differential drive is required. The LT6402-6 can be used in data acquisition systems that require operation at frequencies as low as DC. The LT6402-6 operates from a 5V power supply and draws 30mA. It is available in a compact 16-pin 3mm x 3mm QFN package and has an operating temperature range of -40°C to 85°C.