LTC1164-6CN

Overview

The LTC1164-6CN is a monolithic 8th order elliptic lowpass filter featuring clock-tunable cutoff frequency and low power supply current. It operates with ±2.375V to ±8V supplies or a single 5V supply, consuming 4mA at ±5V. The device provides an elliptic response with 64dB attenuation at 1.44 fCUTOFF (100:1 ratio) or linear phase response when Pin 10 is grounded. Wideband noise is 110µVRMS at ±5V. It accepts TTL/CMOS clocks up to 1MHz and requires no external components.

Feature Summary

• Pin-selectable elliptic or linear phase filter response
• Clock-tunable cutoff frequency without external components
• Low power operation with wide dynamic range
• TTL/CMOS compatible clock input

Applications

• Antialiasing filters
• Battery-operated instruments
• Telecommunication filters

Procurement Notes

Verify the specific suffix CN corresponds to the 14-lead PDIP package in official documentation. Confirm lead-free status and RoHS compliance through manufacturer markings. Ensure the source document matches the exact part number to avoid confusion with obsolete variants like the M version.

Selection Notes

Select this component for applications requiring high-order filtering without external passive components. Verify that the required cutoff frequency allows for the necessary clock-to-cutoff ratio of 100:1 or 50:1. Ensure the system clock source meets the specified rise/fall time requirements to minimize jitter.

Part Context

This device belongs to the LTC1164 family of switched-capacitor filters. It is pin-compatible with the LTC1064-1. The 'CN' designation specifically identifies the 14-lead plastic DIP package variant within the broader product line.

Replacement Considerations

The LTC1064-1 is documented as pin-compatible. Verify electrical specifications match requirements before substitution. No other direct substitutes are confirmed in the provided datasheet.