LTC1069-6
LTC1069-6 is Single Supply/ Very Low Power/ Elliptic Lowpass Filter manufactured by Linear Technology.
- Part of the LTC-1069 comparator family.
- Part of the LTC-1069 comparator family.
Single Supply, Very Low Power, Elliptic Lowpass Filter
Features n 8th Order Elliptic Filter in SO-8 Package n Single 3V Operation: Supply Current: 1m A (Typ) f CUTOFF: 14k Hz (Max) S/N Ratio: 72d B n Single 5V Operation: Supply Current: 1.2m A (Typ) f CUTOFF: 20k Hz (Max) S/N Ratio: 79d B n ± 0.1d B Passband Ripple Up to 0.9f CUTOFF (Typ) n 42d B Attenuation at 1.3f CUTOFF n 66d B Attenuation at 2.0f CUTOFF n 70d B Attenuation at 2.1f CUTOFF n Wide Dynamic Range, 75d B or More (S/N + THD),
Under Single 5V Operation n Wideband Noise: 120µVRMS n Clock-to-f CUTOFF Ratio: 50:1 n Internal Sample Rate: 100:1
APPLICATIONS n Handheld Instruments n Telemunication Filters n Antialiasing Filters n Smoothing Filters n Audio n Multimedia
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
DESCRIPTION
The LTC®1069-6 is a monolithic low power, 8th order lowpass filter optimized for single 3V or single 5V supply operation. The LTC1069-6 typically consumes 1m A under single 3V supply operation and 1.2m A under 5V operation.
The cutoff frequency of the LTC1069-6 is clock tunable and it is equal to the clock frequency divided by 50. The input signal is sampled twice per clock cycle to lower the risk of aliasing.
The typical passband ripple is ± 0.1d B up to 0.9f CUTOFF. The gain at f CUTOFF is
- 0.7d B. The transition band of the LTC1069-6 Features progressive attenuation reaching 42d B at 1.3f CUTOFF and 70d B at 2.1f CUTOFF. The maximum stopband attenuation is 72d B.
The LTC1069-6 can be clock tuned for cutoff frequencies up to 20k Hz (single 5V supply) and for cutoff frequencies up to 14k Hz (single 3V supply).
The low power feature of the LTC1069-6 does not penalize the device’s dynamic range. With single 5V supply and an input range of 0.4VRMS to 1.4VRMS, the Signal-to(Noise + THD) ratio is ≥70d B. The wideband noise of the LTC1069-6 is 125μVRMS.
Other filter responses with higher speed can be obtained. Please contact LTC Marketing for details.
The LTC1069-6 is available...
