Q: What is an anti-alias filter, and do I need one? A: At its simplest an anti-alias filter removes unwanted high-frequency signals from the signals…
Analog Signal Conditioning for Accurate Measurements
Q: Should I put some sort of circuit between my sensor and an analog-to-digital converter? A: Yes. You probably need some signal conditioning. The…
Differential Nonlinearity in Analog Measurements
Q: In a previous answer you noted, “… most applications require linearity but not absolute precision…” What does that mean? A: Typically it means…
Analog Resolution vs. Accuracy
Q: I need an analog-to-digital converter, probably one with 16 bits. The more bits, the better the resolution, right? A: Not so fast. To…
Determining an Effective Analog Sampling Rate
Q: How often should my equipment make measurements? A: This question often arises when people draft plans to automatically measure a physical quantity such as temperature, pressure,…