Near-DC to 8GHz, differential to single-ended (D2S) RF amplifier

The TRF1108 is a very high-performance, differential-to-single-ended (D2S)

amplifier optimized for radio-frequency (RF) applications. The device is an

excellent choice for applications that require a D2S conversion at the output of

digital-to-analog converter (DAC) such as the high-performance DAC39RF10 or

AFE7950. The on-chip matching components simplify printed-circuit-board

(PCB) implementation and provide the highest performance over the usable bandwidth.

The device is fabricated using Texas Instruments’ advanced complementary BiCMOS

process and is available in a space-saving, WQFN-FCRLF 2mm × 2mm package.

The primary use-case of the TRF1108 is in ac-coupled applications, where the device

operates using a single, 5V supply with an internally set common-mode voltage that

simplifies biasing. With the help of an application circuit to set the input

common-mode voltage, and by using dual supplies, the amplifier can be dc-coupled. A

power-down feature is also available for power savings.