LTC1164-6CSW#TRPBF

Overview

The LTC1164-6CSW#TRPBF is an 8th-order lowpass filter with selectable elliptic or linear phase response. It operates on a single 5V supply consuming 2.5mA, or dual supplies up to ±8V drawing 4mA. The cutoff frequency is clock-tunable from DC to 30kHz using a TTL/CMOS compatible clock input. Key electrical parameters include 110µVRMS wideband noise at ±5V, 64dB stopband attenuation at 1.44 fCUTOFF for the elliptic mode, and a maximum clock frequency of 1MHz. The device requires no external components for basic operation.

Feature Summary

• Pin-selectable filter response allows switching between elliptic rolloff and linear phase characteristics.
• Clock-tunable cutoff frequency enables flexible bandwidth adjustment without changing passive components.
• Low power consumption supports battery-operated applications while maintaining high signal-to-noise ratios.

Applications

• Antialiasing filters in data acquisition systems
• Telecommunication channel selection
• Battery-operated instrumentation

Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging and lead-free compliance. Confirm the CSW variant corresponds to the 16-lead SOIC package. Ensure the C temperature grade matches the required operating range of -40°C to 85°C. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm current production status.

Selection Notes

Select this component when an 8th-order lowpass filter with adjustable cutoff is required. Choose the elliptic response for steep roll-off or linear phase for minimal transient overshoot. Ensure the application clock source meets the specified rise/fall time limits. Verify that the supply voltage and current consumption align with system power constraints.

Part Context

This part belongs to the LTC1164 family of monolithic switched-capacitor filters. It is pin-compatible with the LTC1064-1. The CSW suffix denotes the 16-lead plastic small outline wide package. The #TRPBF suffix specifies tape and reel delivery with lead-free termination.

Replacement Considerations

The LTC1064-1 is a pin-compatible alternative within the same family. Verify package dimensions and electrical specifications such as noise and power consumption before substitution.

FAQ

How is the filter response selected?

The response is selected by the DC level at Pin 10. Connecting it to V– provides an elliptic response, while connecting it to ground provides a linear phase response.

What is the maximum clock frequency?

The maximum clock frequency is 1MHz for supply voltages of ±5V or less, and 1.5MHz for supplies of ±7.5V or higher.

Can the device operate with a single supply?

Yes, it can operate with a single 5V supply, consuming 2.5mA and providing up to 10kHz cutoff frequency with an 80dB signal-to-noise ratio.