A programmable amplifier circuit includes an amplifier, an input capacitor coupled to an input of the amplifier, a feedback capacitor coupled to the input of the amplifier and an output of the amplifier, and a switched-capacitor resistor circuit. The switched-capacitor resistor circuit is coupled between the input of the amplifier and the output of the amplifier, and configured for simulating a feedback resistor element to provide a resistance for a feedback path of the amplifier by using at least one capacitor placed between the input of the amplifier and the output of the amplifier to avoid leakage current(s) flowing back to an input of the amplifier.