1 Features

? Three performance-optimized power gain variants:

– 5 dB (TRF1305A2)

– 10 dB (TRF1305B2)

– 15 dB (TRF1305C2)

? Preset gain can be reduced with external resistors

? High large-signal bandwidth:

– TRF1305B2: 7 GHz (3-dB), 6.5 GHz (1-dB)

? OP1dB (differential 100-Ω load):

– 16 dBm (2 GHz), 12.5 dBm (4 GHz)

? OIP3: 34 dBm (2 GHz), 24 dBm (4 GHz)

? Noise Figure: 10.2 dB (2 GHz), 12 dB (4 GHz)

? Slew rate: 25 kV/μs

? Large input (±1 V) and output (±0.5 V) commonmode

voltage ranges

? Flexible configurations and modes:

– Single-ended input, differential output (S2D)

– Differential input, differential output (D2D)

– Single-ended output (limited performance)

– AC- or DC-coupled input/output

– Adjustable output common-mode voltage

– Input common-mode range extension mode

? Supports 5-V, flexible single or split supplies

? Active power dissipation: 500 mW per channel

? Power-down for each channel

2 Applications

? RF sampling or GSPS ADC driver

? Test and measurement

? Wireless communications test

? High-speed data acquisition

? Oscilloscopes (DSOs)

? High speed digitizer

? Spectrum analyzer

? Vector signal transceiver (VST)

? Common-mode level shifting

? RF active balun

? I/Q mixer interface

3 Description

The TRF1305B2 is a very high performance,

closed-loop, dual-channel RF amplifier that has an

operational bandwidth from true-dc to > 6.5 GHz.

The device has excellent performance to drive

high-speed, high-performance ADCs, such as the

ADC12DJ5200RF and ADC32RF5x with a dc- or accoupled

interface. The amplifier is optimized for use in

RF, zero and complex IF, and high-speed time-domain

applications. The device is optimized for performance

in the preset gain configuration. If a lower-than-preset

gain is desired, use external resistors.

The TRF1305B2 features a VOCM pin that allows

setting different output common-mode and input

common-mode voltages (for example, for levelshifting

or for most IQ down-converter ADC-interface

applications that have differing dc common-mode

voltages). The floating 2-rail split or single-supply

option, and a MODE pin that allows extending the

input common-mode range closer to the supplies.

High channel-to-channel isolation allows the device to

be used in a complex IQ transmit or receive signal

chain without loss of signal integrity.

The TRF1305B2 has a feature to power down

each channel individually. The device is fabricated

in TI's proprietary advanced BiCMOS process and

is available in a space-saving, 2.5?mm × 3.0?mm,

16?pin, WQFN-FCRLF package.