The LTC6412 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 fl at versus gain to provide a uniform spurious-free dynamic range (SFDR) >120dB over the full gain control range at 240MHz. The LTC6412 is ideal for interfacing with the LT5527 and LT5557 downconverting mixers, LTC6410-6 IF amplifier and the LTC6400/LTC6401/LTC6416 ADC drivers for use in 12-, 14-, and 16-bit ADC applications. The LTC6412 recovers quickly from an overdrive condition, and the EN pin allows for a fast output signal disable to protect sensitive downstream components. Asserting the SHDN pin reduces the current consumption below 1mA for power-down or sleep modes. Applications * IF Signal Chain Automatic Gain Control (AGC) * 2.5G and 3G Cellular Basestation Transceivers * WiMAX, WiBro, WLAN Receivers * Satellite and GPS Receiver IF * 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 * (IIP3 – NF) = +8dBm at 240MHz Across All Gains https://elecena.pl/product/858164/800mhz-31db-range-analog-controlled-vga 2009-06-09 https://elecena.pl/product/858164/800mhz-31db-range-analog-controlled-vga 2014-06-11 https://elecena.pl/product/858164/800mhz-31db-range-analog-controlled-vga 2025-01-21