Abstract: An example programmable multichannel data converter includes a multiplexer having a plurality of input channels, an output and a channel selector input, a converter having an input coupled to the output of the multiplexer, and a controller having a user-configurable memory stack and control circuitry, the controller having a channel selector output coupled to the multiplexer.

Abstract: A data acquisition system includes an analog-to-digital converter (ADC) having a MUX control outputs, a controller coupled to the ADC, a multiplexer coupled to the MUX control outputs of the ADC, and an operational amplifier coupling an analog data output of the multiplexer to an input of the ADC. An ADC having integrated multiplexer control includes control logic circuitry, ADC circuitry, MUX logic and an oscillator coupled to the control logic circuitry, the ADC circuitry, and the MUX logic.

Abstract: An example filter includes a differential amplifier and a resistor string coupled between output terminals of the differential amplifier. The resistor string may generate a common mode sense voltage and an intermediate voltage at an intermediate node. A feedback resistor is coupled between the intermediate node of the resistor string and an input terminal of the differential amplifier, and a feedback capacitor is coupled between a differential output terminal of the amplifier and the differential input terminal. Applying feedback in this manner may reduce area and power requirements of the filter to achieve selected frequency and gain performance.