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50 Threads found on edaboard.com: Integrator Noise
Hi, I have a stupid question about integrator noise.. Say an OTA has an input-referred noise Vn at it's positive input, and be connected into integrator, the transfer function (1/SRC) has infinite gain at DC, ideally. So what would input-referred noise Vn be at OTA's output? If I give input a (...)
It is very difficult to say in a simple paragraph. However, the key is the signal is almost untoched and noise is shaped by inserting integrator in front of comparator (Assumed that LP)
My question is how to extract the nonlinearity of a Gm-C integrator, i.e. THD (total Harmonic Distortion). SNR (Signal-to-noise Ratio) and SDR (Signal-to-Distortion ratio)? As my knowledge, these perforamnces are from the FFT of a signal. Does it need a tranisent simulation??? In some literatures, the performances 1dB compression and IP3 can
My question is how to extract the nonlinearity of a Gm-C integrator, i.e. THD (total Harmonic Distortion). SNR (Signal-to-noise Ratio) and SDR (Signal-to-Distortion ratio)? As my knowledge, these perforamnces are from the FFT of a signal. Does it need a tranisent simulation??? In some literatures, the performances 1dB compression and IP3 c
hi guys, I've been working on a sc integrator for a 16bit sigma-delta ADC. while when i doing the bootstrap switches, the charge injection noise and clock feedthrough give a lot of noise, even the charge injection can be common mode rejected, there is still body effects (nonlinear) and clock feedthrough. does anyone who did this (...)
The characteristic parameters of op amp is relative to the loading and feedback factors of integrator. In the meanwhile, the settling accuracy and noise requriement are the factor to determine the op amp. I think the design of op is the core design for SCF.
why not reduce ur total capacitance ? why did u choose 9.6pF for ur integrator ? for noise issue, or matching issue? by the way, what do u mean "5-bit coarse quantization", I have not heard about that term from books, is it a new technique ?
In contrast to sigma-delta modulators, delta modulators have their integrator(s) in the feedback path and not in it forward path ( input - integrators - adc) . Therefore, no noise-shaping is done. Hence, it isn't usefull for oversampling converters.
the 4Kohm resistor has 2 reasons: 1. it's the reason described by petarpav. 2. if you use internal ref, the 4Kohm resistor and external cap (common 100nF), make the noise rejection of internal refference. (work as RC integrator)
just as title said.I want to make a noise analysis of a integrator by hspice.Can the following sentence works it out? .noise V(out) Is DEC 10 100 100Meg and second a analysis result in the *.lis file,there are: **** total output noise voltage = 3.2205m volts **** total equivalent input (...)