{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MX7528SQ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MX7528SQ","canonicalUrl":"https://icboms.com/analog-devices/MX7528SQ","factsUrl":"https://icboms.com/api/mcp/products/MX7528SQ","rawCanonicalId":null},"summary":{"shortDescription":"MX7528SQ dual 8-bit multiplying DAC, R-2R architecture, current-unbuffered output, 350 ns settling time, parallel interface, 20-CDIP ceramic package, -55°C to +125°C military temperature range.","salesMarkdown":"## Dual 8-bit DAC in a hermetic ceramic package The MX7528SQ is a dual 8-bit multiplying DAC in a 20-pin ceramic DIP (CDIP-20). It packs two independent R-2R DACs on one die, each with its own external reference input and current output, sharing a common 8-bit parallel data bus. The 350 ns settling time to ±½ LSB means each DAC can update at roughly 2.8 MSPS when driven by a clean write strobe — fast enough for waveform generation in the audio band or for servo-loop setpoint updates in a motion controller. The -55°C to 125°C operating range and the hermetic CDIP package qualify this part for avionics, satellite, downhole instrumentation, and other high-reliability environments where plastic packages are not accepted. ## Supply rails and reference — three voltages required The MX7528SQ needs three supply rails: a +5 V analog rail (4.75-5.25 V), a +5 V digital rail (4.75-5.25 V), and a +15 V rail (14.25-15.75 V) that biases the current-steering switches. The +15 V rail is mandatory — without it the DAC outputs do not swing correctly. The reference is external and must be able to drive the R-2R ladder input impedance, typically 5-10 kΩ. The output is current-unbuffered, so an external op-amp is required to convert the current to a voltage. The op-amp's input bias current and offset voltage directly affect the system accuracy. The digital interface is parallel: all 8 data bits are latched on a single write strobe. The data bus is shared between both DACs; the chip-select and write lines determine which DAC receives the data. No serial clock is needed, but the bus uses 8 digital I/O lines plus 2 control lines. ## Linearity and monotonicity over temperature The INL and DNL are both specified at ±1 LSB maximum. The DNL spec of ±1 LSB guarantees monotonicity — the output never decreases when the digital code increases. This is critical for closed-loop control systems where a non-monotonic DAC could cause the loop to hunt or oscillate. The ±1 LSB INL means the actual output can deviate from the ideal by up to one LSB at any code. For a 5 V reference, one LSB is 19.5 mV at the output of the I-V converter. This is the dominant error source in the analog path; the op-amp and reference must be selected to keep the total error budget below the system requirement. ## RoHS non-compliant — verify end-market requirements The MX7528SQ is marked as RoHS non-compliant. The CDIP package uses lead in the solder dip and the die-attach material. This part cannot be used in assemblies that must meet RoHS exemption-free requirements. Buyers should confirm the end-market RoHS directive before committing the BOM line.","metaTitle":"MX7528SQ Dual 8-Bit Multiplying DAC, 350 ns, CDIP-20","metaDescription":"MX7528SQ dual 8-bit multiplying DAC in hermetic 20-CDIP. 350 ns settling, ±1 LSB INL, parallel interface, -55 to +125°C. Active production, RoHS non-compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Output Type":"Current - Unbuffered","Architecture":"Multiplying DAC, R-2R","INL/DNL (LSB)":"±1 (Max), ±1 (Max)","Mounting Type":"Through Hole","Settling Time":"350ns","Data Interface":"Parallel","Number of Bits":"8","Package / Case":"20-CDIP (0.300\\\", 7.62mm)","Reference Type":"External","lifecycle_stage":"eol_hot","Differential Output":"No","Operating Temperature":"-55°C ~ 125°C","Supplier Device Package":"20-CDIP","Number of D/A Converters":"2","Voltage - Supply, Analog":"4.75V ~ 5.25V, 14.25V ~ 15.75V","Voltage - Supply, Digital":"4.75V ~ 5.25V, 14.25V ~ 15.75V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$17.99","stockQuantity":0,"priceTiers":[{"qty":17,"price":"$17.99000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2ab7550b9f01492098c167c26f6be16a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What supply voltages does the MX7528SQ need?","answer":"The MX7528SQ requires three supply rails: analog +5 V (4.75-5.25 V), digital +5 V (4.75-5.25 V), and a +15 V rail (14.25-15.75 V) for the current-steering switches. All three rails are mandatory for proper operation."},{"question":"Is the MX7528SQ RoHS compliant?","answer":"No, the MX7528SQ is marked as RoHS non-compliant. The hermetic CDIP package contains lead in the solder dip and die-attach materials. Verify your end-market RoHS exemption requirements before specifying this part."},{"question":"What is the settling time of the MX7528SQ?","answer":"The settling time is 350 ns to within ±½ LSB for a full-scale code change. This supports a maximum update rate of approximately 2.8 MSPS, assuming the external current-to-voltage converter op-amp can match the settling time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MX7528SQ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MX7528SQ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}