
By doctorj, on July 15th, 2009% Sensors or transducers monitor, measure, and control physical processes as key elements of instrumentation systems. A transducer device converts a physical variable such as temperature, pressure, light or motion into an electrical signal such as voltage and current. Electrical signal processing converts the transducer output as required for the rest of the instrumentation system. What [...] . . . → Read More: Operational Amplifier (Op Amp) Application – Transducer Interface Circuits – Part 1
By doctorj, on July 9th, 2009% This concludes the series of tutorial videos on the R2R ladder network circuit as an example of operational amplifier design and applications. The video will continue to discuss the 4bit digitaltoanalog converter (DAC) and R2R ladder circuit using the superposition principle to analyze the DAC. After viewing the above video on the R2R digitaltoanalog converter [...] . . . → Read More: OpAmp Design & Application Tutorial – DigitaltoAnalog Converter (DAC) Circuit R2R Ladder – Part 5
By doctorj, on July 8th, 2009% A series of videos on opamp design and applications will continue with the analysis of the digitaltoanalog (DAC) R2R ladder network. As before, the video will discuss the R2R DAC circuit and analyze it using the concept of superposition. A fourbit binary input was given as an example. The next video will conclude the analysis [...] . . . → Read More: OpAmp Design & Application Tutorial – DigitaltoAnalog Converter (DAC) R2R – Part 4
By doctorj, on July 7th, 2009% Here, we have an op amp implementation of the binaryweighted summer known as the R2R ladder digitaltoanalog converter (DAC). The advantage of this circuit is that there is not a requirement to have a wide range of different resistor values as found in the binaryweight DAC. We’ll again use 4bit digital input as an example [...] . . . → Read More: OpAmp Design & Application Tutorial – DigitaltoAnalog Converter (DAC) R2R Ladder – Part 3
By doctorj, on July 2nd, 2009% The previous video provided an introduction on the digitaltoanalog converters (DACs). Here, we show how a binaryweighted inverting summer using operational amplifiers (op amps). We used the same example for 4 bits digital input. The summer inputs are applied to the binaryweighted input resistors, respectively. The input voltages are determined by switches controlled by the [...] . . . → Read More: OpAmp Design & Application Tutorial – BinaryWeighted DigitaltoAnalog Converter (DAC) – Part 2

