{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1231BCEG+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1231BCEG","canonicalUrl":"https://icboms.com/analog-devices/MAX1231BCEG","factsUrl":"https://icboms.com/api/mcp/products/MAX1231BCEG%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1231BCEG+ 12-bit SAR ADC, 300k sampling rate, 8/16 differential/single-ended inputs, SPI interface, 24-QSOP package, tube.","salesMarkdown":"## 12-bit SAR ADC with on-chip temperature sensor The MAX1231BCEG+ is a 12-bit successive-approximation register (SAR) ADC from Analog Devices, sampling at 300k samples per second. The SAR architecture gives you a deterministic conversion time with no pipeline delay — the output for a given input appears on the next SPI frame, not several clocks later. It accepts either 8 differential or 16 single-ended inputs via an internal mux, configurable through the SPI interface. The on-chip temperature sensor lets the ADC report its own die temperature — useful for thermal compensation in a system that already polls the ADC channel sequence. ## Supply and signal chain integration The external or internal reference option lets you trade accuracy for BOM count: use the internal reference for a standalone channel, or drive an external precision reference when the system already has one. The 24-QSOP package (3.90 mm wide SSOP footprint) is a compact surface-mount option for dense mixed-signal boards. The 0.154-inch body width fits standard SSOP land patterns; the tube shipment means the parts arrive aligned for pick-and-place without tape-and-reel handling. Not specified for the -40°C industrial tail; if the end system sees freezing ambient, a wider-temp variant from the same family is the safer call.","metaTitle":"MAX1231BCEG+ Analog Devices 12-Bit SAR ADC, 300k, 24-QSOP","metaDescription":"MAX1231BCEG+ 12-bit SAR ADC, 300k samples/sec, 8/16 inputs, SPI, 24-QSOP. Active production, 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":"Tube","Features":"Temperature Sensor","Input Type":"Differential, Single Ended","Architecture":"SAR","Configuration":"S/H-ADC","Mounting Type":"Surface Mount","Data Interface":"SPI","Number of Bits":"12","Package / Case":"24-SSOP (0.154\\\", 3.90mm Width)","Reference Type":"External, Internal","Ratio - S/H:ADC":"1:1","lifecycle_stage":"eol_hot","Number of Inputs":"8, 16","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"24-QSOP","Number of A/D Converters":"1","Voltage - Supply, Analog":"2.7V ~ 3.6V","Voltage - Supply, Digital":"2.7V ~ 3.6V","Sampling Rate (Per Second)":"300k"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$18.26","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$18.26000","currency":"USD"},{"qty":10,"price":"$16.78300","currency":"USD"},{"qty":25,"price":"$16.08760","currency":"USD"},{"qty":100,"price":"$14.17460","currency":"USD"},{"qty":250,"price":"$13.47896","currency":"USD"},{"qty":500,"price":"$12.60934","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7ea35c5bc80b7e0ef367fd8c1d6ed694.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the MAX1231BCEG+ sampling rate and resolution?","answer":"It is a 12-bit SAR ADC with a 300k samples-per-second maximum sampling rate. The SAR architecture provides a deterministic conversion time with no pipeline delay."},{"question":"Does the MAX1231BCEG+ support differential inputs?","answer":"Yes, it accepts either 8 differential or 16 single-ended inputs, configurable through the SPI interface."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1231BCEG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1231BCEG 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}}