LT6600-15 Datasheet | Linear Technology

LT6600-15 Very Low Noise, Differential Amplifier and 15MHz Lowpass Filter .. Features n n n n DESCRIPTION The LT®6600-15 bines a fully differential amplifier with a 4th order 15MHz lowpass filter approximating a Chebyshev frequency response. Most differential amplifiers require many precision external ponents to tailor gain and bandwidth. In contrast, with the LT6600-15, two external resistors program differential gain, and the filter’s 15MHz cutoff frequency and passband ripple are internally set. The LT6600-15 also provides the necessary level shifting to set its output mon mode voltage to acmodate the reference voltage requirements of A/Ds. Using a proprietary internal architecture, the LT6600-15 integrates an antialiasing filter and a differential amplifier/ driver without promising distortion or low noise performance. At unity gain the measured in band signal-to-noise ratio is an impressive 76d B. At higher gains the input referred noise decreases so the part can process smaller input differential signals without significantly degrading the output signal-to-noise ratio. The LT6600-15 also Features low voltage operation. The differential design provides outstanding performance for a 2VP-P signal level while the part operates with a single 3V supply. The LT6600-15 is packaged in an SO-8 and is pin patible with stand alone differential amplifiers. n n n n n Programmable Differential Gain via Two External Resistors Adjustable Output mon Mode Voltage Operates and Specified with 3V, 5V, ±5V Supplies 0.5d B Ripple 4th Order Lowpass Filter with 15MHz Cutoff 76d B S/N with 3V Supply and 2VP-P Output Low Distortion, 2VP-P, 800Ω Load, VS = 3V 1MHz: 86d Bc 2nd, 90d Bc 3rd 10MHz: 63d Bc 2nd, 69d Bc 3rd Fully Differential Inputs and Outputs patible with Popular Differential Amplifier Pinouts SO-8 Package APPLICATIONS n n n n High Speed ADC Antialiasing and DAC Smoothing in Networking or Cellular Base Station Applications High Speed Test and...