This circuit was found in the October 1983 Radio Electronics issue. It is applicable to old analog telephones. The circuit uses common components.
This circuit was found in February 1976, Radio Electronics magazine. The components are from the...
Analog Devices AD7768 24-bit sigma-delta (Σ-Δ) ADCs include an Σ-Δ modulator and digital filter...
We found this circuit in Linear Technology Applications 1993. The maximum output current is 5 A...