LTC1059CS#TRPBF

Overview

The LTC1059CS#TRPBF is a high-performance switched capacitor universal filter manufactured by Analog Devices Inc. It integrates a general-purpose active filter building block and an uncommitted operational amplifier within a single package. The device supports various second-order filter functions, including lowpass, bandpass, notch, highpass, and allpass configurations, utilizing only two to five external resistors and an external clock signal. The center frequency is tunable from 0.1Hz to 40kHz with a guaranteed clock-to-center frequency accuracy of 0.8%. It operates on dual supplies ranging from ±2.37V to ±8V or a single supply from 4.74V to 16V. The component is housed in a 14-lead plastic small outline (S) package.

Feature Summary

• Provides multiple second-order filter functions including lowpass, bandpass, notch, highpass, and allpass outputs using minimal external components.
• Features a wide center frequency range tunable from 0.1Hz to 40kHz dependent on an external clock signal.
• Includes an uncommitted operational amplifier for additional gain adjustment, cascading techniques, or extra filter stages.
• Operates reliably across a temperature range of -40°C to +85°C with guaranteed low offset voltages and temperature coefficients.

Applications

• Sinewave oscillators
• Sweepable bandpass and notch filters
• Full audio frequency filtering applications
• Tracking filters

Procurement Notes

Verify the specific ordering suffix #TRPBF against official manufacturer documentation to confirm tape-and-reel packaging requirements. Ensure that the S package designation matches the required surface-mount footprint for your PCB layout. Cross-reference the full part number with the latest datasheet revision to validate electrical characteristics over the specified industrial temperature range.

Selection Notes

Select this component when designing circuits requiring precise switched capacitor filtering without discrete resistor networks. Verify that the available clock frequency can support the desired center frequency range up to 40kHz. Confirm that the power supply voltage falls within the ±2.37V to ±8V dual supply or 4.74V to 16V single supply limits. Consider the uncommitted op amp utility if higher order filter responses are needed via cascading.

Part Context

This component belongs to the LTC1059 family of high-performance switched capacitor universal filters. It is functionally compatible with other devices in the series such as the LTC1060 and LTC1061, allowing for the construction of higher than second-order filter functions through cascading. The device utilizes Linear Technology's enhanced LTCMOS silicon gate process for manufacturing.

Replacement Considerations

Consult the manufacturer for alternate source options if the N package is preferred over the obsolete J package. The S package serves as the standard surface-mount alternative. Verify functional pin compatibility with the LTC1060 dual universal filter if upgrading system complexity.