{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1228BEEP+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1228BEEP","canonicalUrl":"https://icboms.com/analog-devices/MAX1228BEEP","factsUrl":"https://icboms.com/api/mcp/products/MAX1228BEEP%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1228BEEP+ 12-bit SAR ADC, 300kSPS, 6/12-channel differential/single-ended input, SPI interface, 20-QSOP package, Tube.","salesMarkdown":"## 12-bit SAR ADC with on-chip temperature sensor The MAX1228BEEP+ is a 12-bit successive-approximation (SAR) ADC from Analog Devices, sampling at 300 kSPS over an SPI interface. It integrates a 6- or 12-channel input multiplexer configurable for differential or single-ended inputs, plus an on-chip temperature sensor — a combination that suits multi-sensor data-acquisition systems where one ADC digitises both external signals and die temperature for compensation. The single 5 V supply (analog and digital) keeps the power rail simple, and the 1:1 S/H-to-ADC ratio means the sample-and-hold is dedicated per conversion, not shared across channels — no throughput penalty when scanning multiple inputs. ## Channel count and input configuration The MUX-S/H-ADC architecture routes 6 differential or 12 single-ended inputs into the converter. Differential mode rejects common-mode noise on long sensor leads; single-ended mode doubles the channel count for monitoring local references or thermistors where common-mode is not a concern. Both external and internal reference options are available — the internal reference saves a BOM resistor and capacitor, while an external reference lets the system scale the full-scale range to match the sensor output span. Shipping in Tube format — the standard QSOP carrier for pick-and-place or hand-assembly runs.","metaTitle":"MAX1228BEEP+ ADC, 12-Bit SAR, 300kSPS, 20-QSOP","metaDescription":"MAX1228BEEP+ 12-bit SAR ADC from Analog Devices, 300kSPS, 6/12-channel MUX, SPI, industrial temp. Active, ROHS3. Quoted 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":"MUX-S/H-ADC","Mounting Type":"Surface Mount","Data Interface":"SPI","Number of Bits":"12","Package / Case":"20-SSOP (0.154\\\", 3.90mm Width)","Reference Type":"External, Internal","Ratio - S/H:ADC":"1:1","lifecycle_stage":"eol_hot","Number of Inputs":"6, 12","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"20-QSOP","Number of A/D Converters":"1","Voltage - Supply, Analog":"5V","Voltage - Supply, Digital":"5V","Sampling Rate (Per Second)":"300k"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$20.9","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$20.90000","currency":"USD"},{"qty":10,"price":"$19.27200","currency":"USD"},{"qty":25,"price":"$18.40640","currency":"USD"},{"qty":100,"price":"$16.45730","currency":"USD"},{"qty":250,"price":"$15.69944","currency":"USD"},{"qty":500,"price":"$14.94154","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MAX1228BEEP+?","answer":"The MAX1228 family shares the same pinout and function; confirm the specific variant suffix for your BOM line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1228BEEP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1228BEEP 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}}