Features

• Clock-Tunable Cutoff Frequency
• 1mV DC Offset (Typical)
• 80dB CMRR (Typical)
• Internal or External Clock
• 50mVRMS Clock Feedthrough
• 100:1 Clock-to-Cutoff Frequency Ratio
• 95µVRMS Total Wideband Noise
• 0.01% THD at 2VRMS Output Level
• 50kHz Maximum Cutoff Frequency
• Cascadable for Faster Roll-Off
• Operates from ±2.375 to ±8V Power Supplies
• Self-Clocking with 1 RC
• Available in 8-Pin DIP and 16-Pin SO Wide Packages

Typical Application

Description

The filter cutoff frequency is controlled either by an internal or external clock.The clock-to-cut off frequency ratio is 100:1. The on-board clock is power supply independent, and it is programmed via an external RC. The 50µV_RMS clock feed through is considerably reduced over existing monolithic filters.

The LTC1063 wideband noise is 95µV_RMS, and it can process large AC input signals with low distortion. With ±7.5V supplies, for instance, the filter handles up to 4V_RMS (92dB S/N ratio) while the standard 1kHz THD is below 0.02%; 80dB dynamic ranges (S/N +THD) is ob-tained with input levels between 1V_RMS and 2.3V_RMS.

The LTC1063 is available in 8-pin miniDIP and 16-pin SO wide packages. For a linear phase response, see LTC1065 data sheet.