LTC1563 - Active RC, 4th Order Lowpass Filter Family

Features

  • Click Here For LTC1563 Evaluation Kits
  • 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 < fC<256kHz)
  • 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
LTC1563
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Description

The LTC1563-2/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

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).
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Packaging

SSOP-16

LTC1563
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Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC1563-2CGN SSOP 16 C $2.35 $1.95 View
LTC1563-2CGN#PBF SSOP 16 C $2.35 $1.95 View
LTC1563-2CGN#TR SSOP 16 C   $2.01 View
LTC1563-2CGN#TRPBF SSOP 16 C   $2.01 View
LTC1563-2IGN SSOP 16 I $2.60 $2.15 View
LTC1563-2IGN#PBF SSOP 16 I $2.60 $2.15 View
LTC1563-2IGN#TR SSOP 16 I   $2.21 View
LTC1563-2IGN#TRPBF SSOP 16 I   $2.21 View
LTC1563-3CGN SSOP 16 C $2.35 $1.95 View
LTC1563-3CGN#PBF SSOP 16 C $2.35 $1.95 View
LTC1563-3CGN#TR SSOP 16 C   $2.01 View
LTC1563-3CGN#TRPBF SSOP 16 C   $2.01 View
LTC1563-3IGN SSOP 16 I $2.60 $2.15 View
LTC1563-3IGN#PBF SSOP 16 I $2.60 $2.15 View
LTC1563-3IGN#TR SSOP 16 I   $2.21 View
LTC1563-3IGN#TRPBF SSOP 16 I   $2.21 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Evaluation Kits

Part Number Description Price
DC338A-A LTC1563-2CGN | Universal Lowpass Filter $50.00
DC338A-B LTC1563-3CGN | Universal Lowpass Filter $50.00
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Applications

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

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.

Click here to download FilterCAD 3.0

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