1 Features

• Three performance-optimized power gain variants:

– 15dB (TRF1305A1)

– 10dB (TRF1305B1)

– 5dB (TRF1305C1)

• Fixed gain can be reduced with external resistors

• Wide large-signal RF bandwidth:

– TRF1305B1: 7.2GHz (3dB), 6.4GHz (1dB)

• OP1dB (differential 100Ω load):

– 15.7dBm (2GHz), 12.8dBm (4GHz)

• OIP3: 34dBm (2GHz), 25.5dBm (4GHz)

• Noise Figure: 10.4dB (2GHz), 13.4dB (4GHz)

• Slew rate: 25kV/μs

• Large input (±1V) and output (±0.5V) 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 5V, flexible single or split supplies

• Active power dissipation: 500mW

• Power-down mode

2 Applications

• RF sampling or GSPS ADC driver

• Test and measurement

• Wireless communications test

• RF digitizers

• Oscilloscopes (DSOs)

• High speed digitizer

• Spectrum analyzer

• Vector signal transceiver (VST)

• Mass spectrometry systems

• Common-mode level shifting

• IQ mixer interface

3 Description

The TRF1305B1 is a very-high-performance, closedloop,

single-channel RF amplifier that has an

operational bandwidth from true-dc to > 6.5GHz.

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 fixed gain configuration. If lower gain is desired,

use external resistors.

The TRF1305B1 features a VOCM pin that allows

setting different output common-mode and input

common-mode voltages; for example, level-shifting

or for most IQ down-converter ADC-interface

applications that have differing dc common-mode

voltages. The TRF1305B1 also features a floating

2-rail split or single-supply option, and a MODE pin

that allows extending the input common-mode range

closer to the supplies.

The TRF1305B1 has a power-down feature. The

device is fabricated with TI's proprietary advanced

BiCMOS process and is available in a space-saving,

2mm × 2mm, 12‑pin, WQFN-FCRLF package.