I tend to use a lot of 1M resistors, mostly due to concerns over energy consumption. Almost every voltage divider or bias point in my circuits has at least one of them. Problem is, I'm not exactly sure what I'm trading off for the gain in efficiency.
I know that generally speaking, high-impedance paths are more prone to pick up noise or to be more sensitive to temperature fluctuations. But as far as actual examples of where this sort of thing could be a real problem, I just don't have enough experience to know what to look out for. Signal amplification is probably a big one, I'm sure.
Any others I should be thinking about?
I know that generally speaking, high-impedance paths are more prone to pick up noise or to be more sensitive to temperature fluctuations. But as far as actual examples of where this sort of thing could be a real problem, I just don't have enough experience to know what to look out for. Signal amplification is probably a big one, I'm sure.
Any others I should be thinking about?