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VCA 261 3
VCA2613
SBOS179D – DECEMBER 2000 – REVISED OCTOBER 2004
Dual, VARIABLE GAIN AMPLIFIER with Low-Noise Preamp
FEATURES
q LOW NOISE PREAMP: Low Input Noise: 1.0nV/√Hz Active Termination Noise Reduction Switchable Termination Value 80MHz Bandwidth 5dB to 25dB Gain Differential In and Out q LOW NOISE VARIABLE GAIN AMPLIFIER: Low Noise VCA: 3.3nV/√Hz, Differential Programming Optimizes Noise Figure 24dB to 45dB Gain 40MHz Bandwidth Differential In and Out q LOW CROSSTALK: 52dB at Max Gain, 5MHz q HIGH-SPEED VARIABLE GAIN ADJUST q SWITCHABLE EXTERNAL PROCESSING
DESCRIPTION
The VCA2613 is a dual, Low-Noise Preamplifier (LNP), plus low-noise Variable Gain Amplifier (VGA). The combination of Active Termination (AT) and Maximum Gain Select (MGS) allow for the best noise performance.