ADI LTC1069-1IS8#PBF

The LTC1069 - 1 is a monolithic 8th order lowpass filter featuring clock - tunable cutoff frequency and 2.5mA power supply current with a single 5V supply. An additional feature of the LTC1069 - 1 is operation with a single 3.3V supply. The cutoff frequency (fcuroFF) of the LTC1069 - 1 is equal to the clock frequency divided by 100. The gain at fcuroFF is - 0.7dB and the typical passband ripple is ± 0.15dB up to 0.9fcuroFF. The stopband attenuation of the LTC1069 - 1 features a progressive elliptic response reaching 20dB attenuation at 1.2fcuroFF, 52dB attenuation at 1.4fcuroFF and 70dB attenuation at 2fcuroFF. With ± 5V supplies, the LTC1069 - 1 cutoff frequency can be clock - tuned up to 12kHz; with a single 5V supply, the maximum cutoff frequency is 8kHz. The low power feature of the LTC1069 - 1 does not penalize the device's dynamic range. With ± 5V supplies and an input range of 0.3VRMS to 2.5VRMS, the signal - to - (noise + THD) ratio is ≥ 70dB. The wideband noise of the LTC1069 - 1 is 110μVRMS. Other filter responses with lower power or higher speed can be obtained. The LTC1069 - 1 is available in 8 - pin PDIP and 8 - pin SO packages.

• 8th Order Elliptic Filter in SO - 8 Package
• Operates from Single 3.3V to ± 5V Power Supplies
• 20dB at 1.2fCUTOFF
• 52dB at 1.4fCUTOFF
• 70dB at 2fCUTOFF
• Wide Dynamic Range
• 110uVRMS Wideband Noise
• 3.8mA Supply Current with ± 5V Supplies
• 2.5mA Supply Current with Single 5V Supply
• 2mA Supply Current with Single 3.3V Supply

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