LT6600CS8-20#PBF

LT6600CS8-20#PBF combines a fully differential amplifier with a 4th order 20MHz lowpass filter approximating a Chebyshev frequency response. Most differential amplifiers require many precision external components to tailor gain and bandwidth. In contrast, with the LT6600-20, two external resistors program differential gain, and the filter’s 20MHz cut-off frequency and passband ripple are internally set. The LT6600-20 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 LT6600-20 integrates an antialiasing filter and a differential amplifier/driver without compromising distortion or low noise performance. Typical applications are high speed ADC antialiasing and DAC smoothing in networking or cellular base station applications, high speed test and measurement equipment, medical imaging, drop-in replacement for differential amplifiers.

• Programmable differential gain via two external resistors
• Adjustable output common mode voltage, fully differential inputs and outputs
• Compatible with popular differential amplifier pinouts
• Filter gain temperature coefficient is 780ppm/C typical (fIN=250KHz, VIN=2VP-P, TA=25°C)
• Noise is 118μVRMS typical (noise BW=10KHz to 20MHz, TA=25°C)
• Input bias current is -50μA typical (average of pin 1 and pin 8, TA=25°C)
• Differential offset drift is 10μV/°C typ (TA=25°C, VS=5V (V+=5V, V–=0V), RIN=402 ohm, and RLOAD=1K)
• Common mode rejection ratio is 66dB typ (TA=25°C, VS=5V (V+=5V, V–=0V), RIN=402 ohm, and RLOAD=1K)
• 8-lead plastic SO package
• Temperature rating range from -40°C to 85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party