Analog Devices introduced a differential RF/IF amplifier for driving high-speed 12-bit to 18-bit A/D converters. The ADL5565 features 3 dB bandwidth of 5 GHz. The amplifier is optimized for wide bandwidth, low distortion and low noise, and achievesHD3 and OIP3 distortion levels (–103 dB and 51 dBm at 100 MHz; –95 dB and 47 dBm at 200 MHz).

The device gain is pin-programmable using internal gain resistors, which allows for fixed gains of 6 dB, 12 dB, or 15.5 dB. With only two external input resistors, any gain between 0 dB and 15.5 dB can be realized.

In addition to the HD2 and HD3 performance, the ADL5565 also has an output (RTO) noise level of 5.5-nV/rt-Hz. The nominal operating power supply is 3.3 V, but the ADL5565 amplifier will also support 5 V for incremental distortion improvement. For time-domain applications, the ADL5565 can achieve 12-V/ns slew rates and 2-ns settling times to 1 percent for a 3-V step.