HMC1119LP4METR

The HMC1119LP4METR is a broadband, highly accurate, 7-bit digital attenuator from Analog Devices, designed for operation from 0.1 GHz to 6.0 GHz. It provides a precise attenuation control range of up to 31.75 dB, adjustable in 0.25 dB steps. This silicon-based attenuator is implemented for fast settling times, low power consumption, and high ESD robustness.

Key electrical characteristics include low insertion loss, with typical values of 1.1 dB at 1.0 GHz and 1.3 dB at 2.0 GHz. It boasts excellent attenuation accuracy of less than ±0.2 dB and a typical step error of less than ±0.1 dB. The device also features high linearity with a typical P1dB of 31 dBm and an input third-order intercept (IP3) of 54 dBm. It operates from a single supply voltage ranging from 3.3 V to 5.0 V.

The HMC1119LP4METR is housed in a compact 4 mm × 4 mm LFCSP package, suitable for space-constrained applications. The RF input and output are internally matched to 50 Ω, eliminating the need for external matching components. The design is bidirectional, allowing for interchangeable RF input and output ports. This attenuator is well-suited for applications in cellular infrastructure, microwave radios, VSATs, test equipment, sensors, and IF/RF designs.