12-bit 16-channel 1 MSPS R/2R DAC

The 16 channels 12-bit R/2R DAC contains a three principal blocks: adjustable bias, DAC core and logic block. DAC core consist of 16 identical R/2R DAC, each of which include differential R/2R ladder and output operational amplifier AB class. There is a possibility to turn off each output channels and whole scheme Digital control register adj<15:4> sets optimal mode by reducing current consumption. It corrects output buffers current, common mode and swing output signal. DAC requires 1.62 ÷ 1.98 V (port Vdd18) analog supply and 0.9 ÷ 1.1 V (port Vdd) digital supply.

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