LTC1563-2CGN#PBF

LTC1563-2 is a family of extremely easy-to-use, active RC low pass filters with rail-to-rail inputs and outputs and low DC offset suitable for systems with a resolution of up to 16 bits. The LTC1563-2, with a single resistor value, gives a unity-gain Butterworth response. The proprietary architecture of these parts allows for a simple resistor calculation: R = 10K (256KHz/fC); fC = cut-off frequency, For many applications, this formula is all that is needed to design a filter. By simply utilizing different valued resistors, gain and other responses are achieved. The device features a low power mode, for the lower frequency applications, where the supply current is reduced by an order of magnitude and a near zero power shutdown mode. Applications includes discrete RC active filter replacement, antialiasing filters, smoothing or reconstruction filters, linear phase filtering for data communication and phase locked loops.

• Extremely easy to use, a single resistor value sets the cut-off frequency (256Hz <lt/> fC <lt/> 256KHz)
• Extremely flexible, different resistor value allow arbitrary transfer functions with or without gain
• Supports cut-off frequencies up to 360KHz using FilterCAD™
• Unity-gain butterworth response uses a single resistor value
• Rail-to-rail input and output voltages, operates from a single 3V (2.7V min) to ±5V supply
• Low noise of 36µVRMS for fC = 25.6KHz, 60µVRMS for fC = 256KHz
• fC accuracy of <lt/> ±2% (typ), DC offset of <lt/> 1mV
• Cascadable to form 8th order low pass filters
• 16-lead plastic SSOP package
• Operating temperature range from 0°C to 70°C

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