LTC1067CGN#PBF

Overview

The LTC1067CGN#PBF is a dual switched-capacitor filter building block in a 16-lead SSOP package. It contains two identical rail-to-rail, high-accuracy second-order sections. The center frequency is tuned by an external clock with a nominal 100:1 ratio. It operates from a single 3V to –5V supply. Key electrical parameters include a center frequency range of 0.001 to 20 kHz, input frequency range up to 1 MHz, and typical power supply current of 4.5 mA at 4.75V. It provides low noise performance under 40mVRMS for Q less than or equal to 5.

Feature Summary

• Dual second-order switched-capacitor building blocks with rail-to-rail operation
• Clock-tunable center frequency with customizable ratios via external resistors
• Low noise architecture suitable for high dynamic range applications

Applications

• Notch filters
• Narrowband bandpass filters
• Tone detection systems
• Noise reduction systems

Procurement Notes

Verify the specific CGN suffix against the official Analog Devices datasheet to confirm the commercial temperature range and SSOP package type. Ensure the ordering information matches the required operating conditions before finalizing procurement.

Selection Notes

Select this component when designing dual-channel active filters requiring precise clock tuning. Compare the 100:1 clock ratio against the LTC1067-50 if lower power consumption is a priority. Verify that the required center frequency falls within the supported operational limits for the chosen mode.

Part Context

This part belongs to the LTC1067 family of universal switched-capacitor filters. It serves as a versatile building block for creating complex filter responses such as Butterworth or Chebyshev characteristics by cascading multiple sections.

Replacement Considerations

LTC1067-50CGN#PBF offers similar functionality with a 50:1 clock ratio and reduced power consumption.