IF gain block offers 47-dBm OIP3,15.5-dB gain

IF gain block offers 47-dBm OIP3,15.5-dB gain

The 15.5-dB LTC6431-15 IF gain block achieves a high dynamic range in a 50-Ω environment from 20 MHz to 1 GHz and beyond. At 240 MHz, the A-grade OIP3 is typically 47 dBm and is fully tested and guaranteed to be a minimum of 44 dBm.

Additional features include a power consumption of less than 450 mW and a noise figure of 3.33 dB, which corresponds to an input-referred amplifier noise of 1 nV/√Hz. The part is unconditionally stable and the input and output are internally matched to 50 Ω, so all that is needed externally are dc blocking capacitors and an RF bias choke.

P1dB is typically 20.6 dBm and linearity is maintained to 17 dBm output power. Available in a 4 x 4-mm QFN-24 package, the part provides greater than 2-V linear output swing operating on a single 5 V supply.(ea/1,000; A-grade version, $4.89; B-grade, $1.89 — available now)

By Christina Nickolas

Linear Technology , Milpitas , CA
Sales Office 408-428-2050
www.linear.com