LTC1064-3CSW#TRPBF

Overview

The LTC1064-3CSW#TRPBF is a monolithic 8th-order lowpass Bessel filter from Analog Devices Inc., housed in a 16-pin SO-Wide (SW) surface-mount package. It provides a linear phase response over its entire passband and requires no external components other than an external TTL or CMOS clock to program the cutoff frequency. The device operates from ±2.37V to ±8V power supplies, with a maximum cutoff frequency of 95kHz. Key electrical parameters include a total wideband noise of 60µVRMS at ±7.5V, a total harmonic distortion of 0.03% or better, and a maximum clock frequency of 7MHz.

Feature Summary

• Monolithic 8th-order lowpass Bessel filter providing linear phase response across the entire passband
• Clock-programmable cutoff frequency utilizing external TTL or CMOS signals without additional passive components
• Low total output DC offset and high linearity with minimal harmonic distortion
• Integrated design eliminates the need for external resistors or capacitors for basic operation

Applications

• Antialiasing filters in data acquisition systems
• Smoothing filters for signal conditioning
• Tracking high-frequency lowpass filtering applications

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm that the manufacturer is Analog Devices Inc. and ensure the part number matches the 16-pin SW package variant. Cross-reference the datasheet revision to confirm compatibility with current manufacturing standards before finalizing procurement orders.

Selection Notes

Select the LTC1064-3CSW#TRPBF when an 8th-order Bessel response with linear phase characteristics is required in a compact surface-mount form factor. Ensure the application supports an external clock input between 50:1 and 150:1 ratios relative to the desired cutoff frequency. Verify that the supply voltage range of ±2.37V to ±8V aligns with system power constraints and that the 95kHz maximum corner frequency meets signal bandwidth requirements.

Part Context

This component belongs to the LTC1064 family of switched-capacitor filters manufactured by Analog Devices Inc. It is pin-compatible with the LTC1064-1, LTC1064-2, and LTC1064-4 variants, allowing for flexible design integration within the same series. The CSW designation specifically identifies the commercial temperature range (-40°C to +85°C) and the 16-lead plastic wide small outline package.

Replacement Considerations

Direct pin-compatible substitutes within the same family include the LTC1064-1, LTC1064-2, and LTC1064-4. These alternatives share identical pinouts but offer different filter responses such as Chebyshev or Butterworth characteristics instead of the Bessel response found in the LTC1064-3.