器件名称: 600I25
功能描述: Very Low Noise, Differential Amplifier and 2.5MHz Lowpass Filter
文件大小: 173.42KB 共12页
简 介:Final Electrical Specifications
LT6600-2.5 Very Low Noise, Differential Amplifier and 2.5MHz Lowpass Filter
June 2003
FEATURES
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DESCRIPTIO
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Programmable Differential Gain via Two External Resistors Adjustable Output Common Mode Voltage Operates and Specified with 3V, 5V, ±5V Supplies 0.5dB Ripple 4th Order Lowpass Filter with 2.5MHz Cutoff 86dB S/N with 3V Supply and 1VRMS Output Low Distortion, 1VRMS, 800 Load 1MHz: 95dBc 2nd, 88dBc 3rd Fully Differential Inputs and Outputs Compatible with Popular Differential Amplifier Pinouts SO-8 Package
The LT6600-2.5 combines a fully differential amplifier with a 4th order 2.5MHz lowpass filter approximating a Chebyshev frequency response. Most differential amplifiers require many precision external components to tailor gain and bandwidth. In contrast, with the LT6600-2.5, two external resistors program differential gain, and the filter’s 2.5MHz cutoff frequency and passband ripple are internally set. The LT6600-2.5 also provides the necessary level shifting to set its output common mode voltage to accommodate the reference voltage requirements of A/Ds. Using a proprietary internal architecture, the LT6600-2.5 integrates an antialiasing filter and a differential amplifier/ driver without compromising distortion or low noise performance. At unity gain the measured in band signal-to-noise ratio is an impressive 86dB. At higher gains the input referred noise decreases so the part can process smaller input differenti……
