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 ac-coupled 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 level-shifting 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 TIs proprietary advanced BiCMOS process and is available in a space-saving, 2.5‑mm × 3.0‑mm, 16‑pin, WQFN-FCRLF package.
- 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) common-mode 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