Analog Devices Variable Gain Amplifiers Provide Unprecedented Levels of Performance and Integration at RF and IF Frequencies

“These new RF / IF variable gain amplifiers further expand ADI’s commitment to offering best-in-class levels of integration and performance for both RF and IF applications,” said Peter Real, vice president, Linear and RF products, Analog Devices. “Both product families provide the user with flexibility to select their preferred parallel or serial formats, and offer fine 0.5dB digital gain steps. This approach simplifies and eases system design, decreases footprint and enables designers of equipment such as next generation base stations to reduce component count, board area, supply lines and cost.”

The ADL5201 and its dual version, the ADL5202, are digitally controlled, IF variable gain amplifiers designed to support high IF sampling receiver designs that require precise gain control, high IP3 and a low noise figure for new broadband radio designs. The new VGAs combine highest dynamic range with lowest distortion and noise figures for IF frequencies up to 400 MHz. The ADL5201 and ADL5202 are ideally suited for driving high-speed, next generation ADCs such as ADI’s AD9268. The new VGAs incorporate proprietary distortion cancellation techniques that enable them to achieve the industry’s highest linearity at more than 47 dBm output IP3 and noise figure of 6 dB. The ADL5201 and ADL5202 provide gain control range of 31.5 dB with 0.5 dB resolution and are capable of supporting serial and parallel interface modes. The ADL5201 and ADL5202 were developed on an advanced SiGe BiCMOS process which enables the reduction in component count, power and supply voltages.