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TRF1108
  • TRF1108
  • TRF1108

TRF1108

ACTIVE

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

Texas Instruments TRF1108 Product Info

1 April 2026 5

Parameters

Type

RF FDA

Frequency (min) (MHz)

0.01

Frequency (max) (MHz)

8000

Gain (typ) (dB)

15.5

Noise figure (typ) (dB)

11

OIP3 (typ) (dBm)

28

P1dB (typ) (dBm)

12

Frequency of harmonic distortion measurement (GHz)

2

3rd harmonic (dBc)

-51

OIP2 (typ) (dBm)

57

2nd harmonic (dBc)

-52

Supply voltage (V)

5

Current consumption (mA)

170

Number of channels

1

Operating temperature range (°C)

-40 to 105

Rating

Catalog

Output enable

Yes

Package

WQFN-FCRLF (RPV)-12-4 mm² 2 x 2

Features

  • Differential-to-single-ended (D2S) RF amplifier
  • Near-DC to 8GHz
  • Gain: 15.5dB at 2GHz
  • OP1dB:
    • 2GHz: 12dBm
    • 6GHz: 10dBm
  • OIP3:
    • 2GHz: 28dBm
    • 6GHz: 28.5dBm
  • Noise figure (NF) and input noise spectral density:
    • 2GHz: 11dB and –163dBm/Hz
    • 6GHz: 11.5dB and –162.5dBm/Hz
  • HD2 and HD3:
    • HD2 (1GHz): –60dBc at 2dBm
    • HD3 (1GHz): –58dBc at 2dBm
  • Additive (residual) phase noise:
    • 1GHz: –154.6dBc/Hz at 10kHz offset
  • Gain and phase imbalance: ±0.6dB and ±2º
  • Differential input matched to 100Ω
  • Single-ended output matched to 50Ω
  • Power-down feature
  • 5V supply
  • Active current: 170mA
  • Differential-to-single-ended (D2S) RF amplifier
  • Near-DC to 8GHz
  • Gain: 15.5dB at 2GHz
  • OP1dB:
    • 2GHz: 12dBm
    • 6GHz: 10dBm
  • OIP3:
    • 2GHz: 28dBm
    • 6GHz: 28.5dBm
  • Noise figure (NF) and input noise spectral density:
    • 2GHz: 11dB and –163dBm/Hz
    • 6GHz: 11.5dB and –162.5dBm/Hz
  • HD2 and HD3:
    • HD2 (1GHz): –60dBc at 2dBm
    • HD3 (1GHz): –58dBc at 2dBm
  • Additive (residual) phase noise:
    • 1GHz: –154.6dBc/Hz at 10kHz offset
  • Gain and phase imbalance: ±0.6dB and ±2º
  • Differential input matched to 100Ω
  • Single-ended output matched to 50Ω
  • Power-down feature
  • 5V supply
  • Active current: 170mA

Description

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.

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