The LTC1566-1IS8 is a 7th order continuous time lowpass filter with 12dB of passband gain. The selectivity, linearity and dynamic range makes the LTC1566-1IS8 suitable for filtering in data communications or data acquisition systems. The filter attenuation is 40dB at 1.5 × fCUTOFF and at least 60dB for frequencies above 10MHz.
The LTC1566-1IS8 has an input referred noise of 62µVRMS in a 2MHz bandwidth. In receiver applications where the signal levels are small, the filter features 71dB of spurious free dynamic range.
With 5% accuracy of the cutoff frequency, the LTC1566-1IS8 can be used in applications requiring pairs of matched filters, such as transceiver I and Q channels.
The differential inputs and outputs provide a simple interface for wireless systems. The high impedance inputs are easily coupled to differential demodulators or D/A converters. The output DC common mode voltage and output DC offset voltage are adjustable so the signal path can be optimized for driving an A/D converter or differential modulator.
Other cutoff frequencies and single-ended I/O can be provided upon request. Please contact LTC Marketing.
Feature
- 7th Order, 2.3MHz Lowpass Filter in an SO-8
- 62µVRMS Input Referred Noise
- Operates on a Single 5V or a ±5V Supply
- Differential Inputs and Outputs
- Low Offset (3mV typical, 10mVMAX)
- Adjustable Output Common Mode Voltage
- 40dB Attenuation at 1.5 x fCUTOFF
- Requires No External Components
Applications
- WCDMA Basestations
- Communication Filters
- Antialiasing Filters
- Smoothing or Reconstruction Filters
- Matched Filter Pairs
- Replacement for LC Filters
(Picture: Pinout)
