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Analog Devices Current Output D/A Converters: What is the code vs. output voltage relationship for a multiplying DAC using the LTC2758A?
The formula for calculating the multiplication DAC output voltage is for the standard application described in the datasheet (because it varies depending on the external circuit).
■ Unipolar: VOUT = VREF × D/2^n
■ Bipolar: VOUT＝((VREF×D/2^(n－1))－VREF)÷2
where n is 18 since the LTC2758A is 18 bits. If the output span setting is
・In case of ±2.5V, 0-5V above
・In the case of ±5V, 0-10V, VREF is ×2 above
please do
(Published in August 2021)
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