Analog Devices Inc. Analog Devices ADL5562 3.3GHz RF/IF差分放大器

Analog Devices ADL5562是一款专为RF和IF应用进行优化的3.3GHz高性能差分放大器。该放大器在宽频范围内提供2.1 nV/√Hz的低噪声以及出色的失真性能，从而使其成为驱动8-16位高速ADC的理想选择。ADL5562可以通过引脚设置提供三种可选增益，分别为6db、12db和15.5db。单端配置时其增益分别降低到5.6db、11.1db和14.1db。外接一个串联输入电阻可以灵活地扩展放大器的增益设置，可实现从0到15.5dB之间的任何增益。ADL5562的典型静态电流为80mA，而在禁用时电流消耗小于3mA，输入和输出间具有出色的隔离性能。该器件的宽带性能和低失真性能得到了优化，再加上其增益可调，使其可用于低失真、低噪声和低功耗特性非常关键的通用IF和宽带应用中。

For the single-ended input configuration, the gains are reduced to 5.6dB, 11.1dB, and 14.1dB. Using an external series input resistor expands the amplifier gain flexibility and allows for any gain selection from 0 dB to 15.5dB. The quiescent current of ADL5562 is typically 80mA and when disabled consumes less than 3mA, offering excellent input-to-output isolation.

The device is optimized for wideband, low distortion performance. These attributes, together with its adjustable gain capability, make this device the amplifier of choice for general-purpose IF and broadband applications where low distortion, noise, and power are critical.

特性

-3dB bandwidth of 3.3GHz (A_V = 6dB)
Pin-strappable gain adjust of 6dB, 12dB, 15.5dB
Differential or single-ended input to differential output
Low noise input stage of 2.1nV/√Hz RTI @ A_V = 12dB
IMD3s of -94dBc at 250MHz center
Slew rate of 9.8V/ns
Fast settling of 2ns and overdrive recovery of 3ns

Low broadband distortion (A_V = 6dB)
- 10MHz: -91dBc HD2, -98dBc HD3
- 70MHz: -102dBc HD2, -90dBc HD3
- 140MHz: -104dBc HD2, -87dBc HD3
- 250MHz: -80dBc HD2, -94dBc HD3
Single-supply operation of 3V to 3.6V
Power-down control
Fabricated using the high speed XFCB3 SiGe process