LTC1563-2-有源RC、4阶低通滤波器系列

LTC1563描述
The LTC®1563-2/LTC1563-3 are a family of extremely easy-to-use, active RC lowpass 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 LTC1563-3, with a single resistor value, gives a unity-gain Bessel response. The proprietary architecture of these parts allows for a simple resistor calculation: R = 10k (256kHz/fC); fC = Cutoff Frequency where fC is the desired cutoff 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 LTC1563-X 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. The LTC1563-Xs are available in the narrow SSOP-16 package (Same footprint as an SO-8 package).

LTC1563特点
Extremely Easy to Use—A Single Resistor Value Sets the Cutoff Frequency (256Hz fC 256kHz)
Extremely Flexible—Different Resistor Values Allow Arbitrary Transfer Functions with or without Gain (256Hz fC256kHz)
Supports Cutoff Frequencies Up to 360kHz Using FilterCAD
LTC1563-2: Unity-Gain Butterworth Response Uses a Single Resistor Value, Different Resistor Values Allow Other Responses with or without Gain
LTC1563-3: Unity-Gain Bessel Response Uses a Single Resistor Value, Different Resistor Values Allow Other Responses with or without Gain
Rail-to-Rail Input and Output Voltages
Operates from a Single 3V (2.7V Min) to ±5V Supply
Low Noise: 36µVRMS for fC = 25.6kHz, 60µVRMS for fC = 256kHz
fC Accuracy ±2% (Typ)
DC Offset 1mV
Cascadable to Form 8th Order Lowpass Filters
Available in Narrow SSOP-16 Package
Typical Application

LTC1563封装
SSOP-16

LTC1563应用
Discrete RC Active Filters and Modules
Antialiasing Filters
Smoothing or Reconstruction Filters
Linear Phase Filtering for Data Communication
Phase Locked Loops

LTC1563仿真
FilterCAD 3.0 is a computer aided design program to help users without special expertise in filter design to create filters using Linear Technology's monolithic filter ICs. With FilterCAD, you can design filters with a variety of responses, including Butterworth, Bessel, Chebychev, elliptic, minimum Q elliptic, and custom responses.