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!Part Number!!Marking!!Package!!Function!!Datasheet
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|'''Analog Devices AD7543JN'''||"AD7543JN"||16-DIP||CMOS 12-bit '''serial-input''' monolithic multiplying DAC, R-2R ladder. Has an internal 12-bit serial-in parallel-out shift register (Register A) plus a separate 12-bit DAC input register (Register B), so the chip accepts serial setpoint data directly from the μC — no external shift register required. The two-register architecture lets the μC clock in a new code while the DAC continues to hold the previous value, then transfer it cleanly with a LOAD pulse. Asynchronous CLEAR input zeroes Register B for safe initialization. With 12-bit resolution this gives '''~0.7 V resolution at 3000 V full-scale''' — consistent with Bio-Rad's published 1 V step granularity. The "multiplying" feature is convenient because V<sub>REF</sub> can be scaled by an external precision reference for absolute-voltage trim.||[https://www.analog.com/en/products/ad7543.html AD7543 product page] · [[:Filehttps://wiki.recessim.com/w/images/f/fc/AD7543.PDF|PDF]]
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