{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX543BCSA+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX543BCSAT","canonicalUrl":"https://icboms.com/analog-devices/MAX543BCSAT","factsUrl":"https://icboms.com/api/mcp/products/MAX543BCSA%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX543BCSA+T, 12-bit multiplying DAC, R-2R architecture, current-unbuffered output, 1µs settling, SPI interface, 8-SOIC package, Tape & Reel / Cut Tape.","salesMarkdown":"## 12-bit R-2R DAC with a 1 µs settling window The MAX543BCSA+T is a 12-bit multiplying DAC built on a classic R-2R ladder architecture, delivering a current-unbuffered output that settles in 1 µs. The SPI data interface keeps the pin count low — three wires (data, clock, chip-select) carry the conversion word, which fits a standard MCU SPI port without level-shifting gymnastics. The current-unbuffered output is the raw R-2R ladder current — no internal op-amp. This means the output impedance is code-dependent, and the load must be an external op-amp configured as a transimpedance amplifier (or a resistor to ground for a voltage output with known scaling). The advantage: the user controls the gain and the output swing, and the DAC's linearity is not compromised by an internal buffer's offset or drift. ## Supply rails and temperature envelope The DAC operates from dual supplies: a 5 V rail and a higher-voltage rail from 11.4 V to 15.75 V, with both analog and digital supplies sharing the same voltage range. The 5 V rail typically powers the digital interface and the R-2L ladder reference; the higher rail sets the output compliance range for the current output. INL and DNL are both specified at ±1 LSB maximum — this is a 12-bit accuracy spec that guarantees monotonicity over temperature. A ±1 LSB DNL means no missing codes, which is the minimum requirement for a DAC in a closed-loop control or precision voltage-source application.","metaTitle":"MAX543BCSA+T Analog Devices 12-Bit R-2R DAC, 1µs, SPI","metaDescription":"MAX543BCSA+T from Analog Devices is a 12-bit, current-unbuffered R-2R DAC with 1µs settling time and SPI interface. Active, ROHS3 compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Current - Unbuffered","Architecture":"R-2R","INL/DNL (LSB)":"±1 (Max), ±1 (Max)","Mounting Type":"Surface Mount","Settling Time":"1µs","Data Interface":"SPI","Number of Bits":"12","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Reference Type":"External","lifecycle_stage":"eol_hot","Differential Output":"No","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"8-SOIC","Number of D/A Converters":"1","Voltage - Supply, Analog":"5V, 11.4V ~ 15.75V","Voltage - Supply, Digital":"5V, 11.4V ~ 15.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.89","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$14.89000","currency":"USD"},{"qty":10,"price":"$13.68400","currency":"USD"},{"qty":25,"price":"$13.11680","currency":"USD"},{"qty":100,"price":"$11.55700","currency":"USD"},{"qty":250,"price":"$10.98980","currency":"USD"},{"qty":500,"price":"$10.28080","currency":"USD"},{"qty":1000,"price":"$9.42997","currency":"USD"},{"qty":2500,"price":"$9.07546","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/607e17245e2d02fe93174fb3489ee82d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What does the current-unbuffered output mean for my circuit design?","answer":"The output is the raw current from the R-2R ladder — it is not buffered by an internal op-amp. You must connect an external operational amplifier configured as a transimpedance amplifier (or a resistor to ground) to convert the current to a voltage. This gives you control over the gain and output swing, but requires an additional active component on the board."},{"question":"What package is the MAX543BCSA+T available in?","answer":"The supplier device package is also 8-SOIC. It is offered in Tape & Reel for volume assembly or Cut Tape for prototyping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX543BCSAT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX543BCSAT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}