The LTC1569-7 is a 10th order lowpass filter featuring linear phase and a root raised cosine amplitude response. The high selectivity of the LTC1569-7 combined with its linear phase in the passband makes it suitable for filtering both in data communications and data acquisition sytems.
The LTC1569-7 provides a 10th‑order low‑pass response with linear phase and a root‑raised‑cosine amplitude shape. Cutoff frequency is set by a single external resistor, allowing up to three selectable frequencies per resistor value.
The device operates from 3 V to 5 V, offers low‑power modes, differential or single‑ended inputs, and includes detailed pin functions, electrical characteristics, and typical application circuits for data‑communication and pulse‑shaping uses.
| Cutoff Frequency (5 V supply) | up to 300 kHz |
|---|---|
| Cutoff Frequency (3 V supply) | up to 150 kHz |
| DC Accuracy (Vos Max) | 5 mV |
| CMRR (DC) | 80 dB |
| Signal‑to‑Noise Ratio | 80 dB (Vs = 5 V) |
| Supply Voltage Range | 3 V to 5 V |
The cutoff frequency is set by a single external resistor that drives an internal oscillator; the resistor value determines the frequency.
The device can operate on a single supply ranging from 3 V up to 5 V.
The maximum DC offset is specified as 5 mV.
Yes, the LTC1569-7 supports both differential and single‑ended input configurations.