What is this repo?
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Simulate ADC quantizations in python
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Fast Simulations using Numpy
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Can add noise for your design optimization!
usage
# example.py
from simple_sar import SAR, normalize_input
import numpy as np
import matplotlib.pyplot as plt
#bit = number of bits in ADC
#ncomp = noise of the comparator
#ndac = noise of the c-dac
#nsamp = sampling kT/C noise
#radix = radix of the C-DAC
# make a ideal sin signal
adcin = np.sin(np.arange(0, 10, 0.001))
# This simulates a standard 6-bit ADC
bit = 6
ncomp = 0.001
ndac = 0
radix = 2
nsamp = 0
# Define ADC
myadc = SAR(bit, ncomp, ndac, nsamp, radix)
# Normalize your input
norm_input, center, maxbin = normalize_input(adcin)
# Run ADC
adcout=myadc.sarloop(norm_input)
# Rescale ADC output to original
adcout, _ , _ = normalize_input(adcout)
adcout = adcout * maxbin + center
#print it.
print(adcout)
plt.plot(adcin)
plt.show()
plt.plot(adcout)
plt.show()PLot results
