{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1229BEEP+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1229BEEP","canonicalUrl":"https://icboms.com/analog-devices/MAX1229BEEP","factsUrl":"https://icboms.com/api/mcp/products/MAX1229BEEP%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1229BEEP+ 12-bit SAR ADC, 300kSPS sampling rate, 6/12-channel differential/single-ended input, SPI interface, 20-QSOP package, tube.","salesMarkdown":"## 12-bit SAR ADC with on-chip temperature sensor The MAX1229BEEP+: The SAR architecture gives you a deterministic conversion time — no pipeline delay — so each sample is ready when the SPI bus reads it, which matters for control loops where latency is part of the timing budget. ## Input mux and channel count The front-end is a MUX-S/H-ADC with 12 single-ended or 6 differential inputs, configurable per the application. The 1:1 S/H-to-ADC ratio means the sample-and-hold is dedicated to each conversion — no shared hold capacitor between channels, so you don't get cross-talk from the previous channel's charge. The on-chip temperature sensor (a feature listed in the spec) lets you monitor die temperature without an external thermistor — useful for thermal compensation or fault detection in a sealed enclosure where adding a sensor is a board spin. ## Package and board-fit for field replacement Housed in a 20-pin QSOP (3.90 mm wide, 0.154-inch body), the MAX1229BEEP+ is a surface-mount part that reworks with a standard hot-air station — no bottom-side paddle to preheat, no BGA alignment. The tube packaging means the parts arrive in a rigid carrier, not a tape reel, so they stay oriented for hand placement if you are swapping one on a bench without a pick-and-place. The part is a current-design-in candidate; no pin-compatible successor or cross-reference is listed by the manufacturer, so the BOM position is locked to this order code.","metaTitle":"MAX1229BEEP+ ADC, 12-Bit SAR, 300kSPS, 20-QSOP","metaDescription":"MAX1229BEEP+ 12-bit SAR ADC, 300kSPS, 6/12-channel MUX, SPI interface, -40 to 85°C. Active production, ROHS3 compliant. Request a quote.","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":"2.7V ~ 3.6V","Voltage - Supply, Digital":"2.7V ~ 3.6V","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":"https://cdn.icboms.com/7ea35c5bc80b7e0ef367fd8c1d6ed694.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the sampling rate and resolution?","answer":"The ADC samples at 300 kSPS with 12-bit resolution using a SAR architecture. The SPI data interface reads the conversion result on each cycle."},{"question":"Does it have an on-chip temperature sensor?","answer":"Yes, the MAX1229BEEP+ includes an on-chip temperature sensor as a listed feature, allowing die-temperature monitoring without an external thermistor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1229BEEP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1229BEEP 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}}