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sampler: unroll conversion for speed
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@ -23,10 +23,16 @@ def adc_mu_to_volt(data, gain=0):
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:param gain: PGIA gain setting (0: 1, ..., 3: 1000)
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:return: Voltage in Volts
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"""
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input_span = 20.
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for i in range(gain):
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input_span /= 10.
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volt_per_lsb = input_span/(1 << 16)
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if gain == 0:
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volt_per_lsb = 20./(1 << 16)
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elif gain == 1:
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volt_per_lsb = 2./(1 << 16)
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elif gain == 2:
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volt_per_lsb = .2/(1 << 16)
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elif gain == 3:
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volt_per_lsb = .02/(1 << 16)
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else:
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raise ValueError("invalid gain")
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return data*volt_per_lsb
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