LTC1062 - 5th Order Lowpass Filter

The LTC™1062 is a 5th order all pole maximally flat lowpass filter with no DC error. Its unusual architecture puts the filter outside the DC path so DC offset and low frequency noise problems are eliminated. This makes the LTC1062 very useful for lowpass filters where DC accuracy is important.

The filter input and output are simultaneously taken across an external resistor. The LTC1062 is coupled to the signal through an external capacitor. This RC reacts with the internal switched capacitor network to form a 5th order rolloff at the output.

The filter cutoff frequency is set by an internal clock that can be externally driven. The clock-to-cutoff frequency ratio is typically 100:1, allowing the clock ripple to be easily removed.

Two LTC1062 scan be cascaded to form a 10th order quasi max flat lowpass filter. The device can be operated with single or dual supplies ranging from ±2.5V to �9V.

The LTC1062 is manufactured using Linear Technology’s enhanced LTCMOS® silicon gate process.

特点
  • Lowpass Filter with No DC Error
  • Low Passband Noise
  • Operates DC to 20kHz
  • Operates on a Single 5V Supply or Up to ±8V
  • 5th Order Filter
  • Maximally Flat Response
  • Internal or External Clock
  • Cascadable for Faster Rolloff
  • Buffer Available
典型应用
LTC1062 Typical Application
LTC1062 Typical Application
应用
  • 60Hz Lowpass Filters
  • Anti-Aliasing Filter
  • Low Level Filtering
  • Rolling Off AC Signals from High DC Voltages
  • Digital Voltmeters
  • Scales
  • Strain Gauges
封装信息
LTC1062 Package Drawing
LTC1062 Package Drawing
Order Information 订购型号
器件型号封装温度价格 (以 1 ~ 99 片为批量)价格 (以 1000 片为批量) *
LTC1062CN8#PBFN-8C$4.10$3.20
LTC1062CSW#PBFSW-16C$4.20$3.40
LTC1062CSW#TRPBFSW-16C$3.46
数据表
应用指南
设计要点
可靠性数据
CAD 符号
相关产品
LTC1062 - 5th Order Lowpass Filter
AN20 - Application Considerations for an Instrumentation Lowpass Filter
AN24 - Unique Applications for the LTC1062 Lowpass Filter
AN43 - Bridge Circuits
AN93 - Instrumentation Applications for a Monolithic Oscillator: A Clock for All Reasons
DN2 - Sampling of Signals for Digital Filtering and Gated Measurements
DN24 - Complex Data Acquisition System Uses Few Components
DN7 - DC Accurate Filter Eases PLL Design
DN9 - Chopper Amplifiers Complement a DC Accurate Low-Pass Filter
R042 Reliability Data
LTC1062 Footprints and Symbols