1 Features
• Superior single-ended to differential conversion
performance as ADC driver
• Also works in differential to single-ended mode to
work as DAC buffer
• 11 GHz, 3-dB bandwidth
• 8 GHz, 1-dB gain flatness
• Fixed SE to Diff power gain of 16 dB
• OIP3 performance:
– 37 dBm at 2 GHz
– 32 dBm at 6 GHz
• P1dB performance:
– 15 dBm at 2 GHz
– 12.5 dBm at 6 GHz
• Noise figure:
– 7 dB at 2 GHz
– 7 dB at 8 GHz
• Gain and phase imbalance: ±0.3 dB / ±3 degrees
• Power-down feature
• 3.3 V single-supply operation
• Active current: 138 mA

2 Applications
• Directly drives RF sampling or Gsps ADCs
• Suitable for aerospace and defense applications
with up to X-band support
• High linearity to support next generation 5G
systems
• Low noise figure for better signal integrity
• Reduced system size with small foot print and
elimination of passive RF balun
• Low power, power-down mode with digital PD
control for optimized system design
• Phased array radar
• Military radios
• High-speed digitizer
• 4G/5G wireless BTS
• RF active balun
• Test and measurement

3 Description
The TRF1208 is a very high performance, RF
Amplifier optimized for radio frequency (RF)
applications. This device is ideal for ac-coupled
applications that require a single-ended to differential
conversion when driving an analog-to-digital
converter (ADC) such as the high performance
ADC12DJ5200RF. The on-chip matching components
simplify printed circuit board (PCB) implementation
and provide the highest performance over the
usable bandwidth. The device is fabricated in Texas
Instruments’ advanced complementary BiCMOS
process and is available in a space-saving, WQFNFCRLF
package.
It operates on a single-rail supply and consumes
about 138 mA of active current. A power-down feature
is also available for power savings.