Datasheet Analog Devices LTC6412 — Ficha de datos

LTC6412
800MHz, 31dB Range
Analog-Controlled VGA
FEATURES DESCRIPTION n The LTC®6412 is a fully differential variable gain amplifier
with linear-in-dB analog gain control. It is designed for
AC-coupled operation in IF receiver chains from 1MHz
to 500MHz. The part has a constant OIP3 across a wide
output amplitude range and across the 31dB gain control
range. The output noise (NF + Gain) is also flat versus gain
to provide a uniform spurious-free dynamic range (SFDR)
>120dB over the full gain control range at 240MHz. n 800MHz –3dB Small-Signal Bandwidth
Continuously-Adjustable Gain Control
–14dB to +17dB Linear-in-dB Gain Range
35dBm OIP3 at 240MHz Across All Gain Settings
10dB Noise Figure at Maximum Gain
(IIP3 – NF) = +8dBm at 240MHz Across All Gains
2.7nV/√Hz Input Referred Noise
Differential Inputs and Outputs
50Ω Input Impedance Across all Gains
Single Supply Operation from 3V to 3.6V
110mA Supply Current
4mm × 4mm × 0.75mm 24-Pin QFN Package The LTC6412 is ideal for interfacing with the LT®5527 and
LT5557 downconverting mixers, LTC6410-6 IF amplifier …