{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AD7691BCPZ-R2","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"AD7691BCPZ-R2","canonicalUrl":"https://icboms.com/analog-devices/AD7691BCPZ-R2","factsUrl":"https://icboms.com/api/mcp/products/AD7691BCPZ-R2","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices PulSAR® ADC, 18-bit, 250 kSPS, differential input, SAR architecture, single 2.3V to 5.25V supply, 10-LFCSP-WD (3x3) package, -40°C to +85°C.","salesMarkdown":"## 18-bit PulSAR ADC with single-supply flexibility The AD7691BCPZ-R2 is an 18-bit successive-approximation (SAR) ADC from the Analog Devices PulSAR® series, sampling at 250 kSPS with a true differential input. The SAR architecture delivers no pipeline delay — the conversion result corresponds to the sample instant, which matters for multiplexed or single-shot acquisitions where channel-to-channel skew cannot be tolerated. ## Supply rails and interface Both the analog and digital supply rails accept 2.3 V to 5.25 V from a single supply — no separate DVDD rail is needed. The digital interface is SPI-/QSPI-/MICROWIRE-compatible, so it ties directly to most DSP and MCU serial ports without a level translator when the digital supply matches the host I/O voltage. ## Package, footprint, and temperature grade The exposed paddle must be soldered to the PCB ground plane for thermal and electrical reference. Analog Devices lists the AD7691BCPZ-R2 as Active. The date-code and marking on incoming stock should be checked against the known ADI plant format — the laser etch on the LFCSP lid is a fingerprint for authenticity. The part is sourced through authorized and independent distribution; lot traceability and full manufacturer warranty apply when procured from an authorized channel.","metaTitle":"AD7691BCPZ-R2 18-bit SAR ADC, 250 kSPS, LFCSP-10","metaDescription":"Analog Devices AD7691BCPZ-R2 PulSAR 18-bit ADC, 250 kSPS, differential input, single 2.3-5.25V supply. Active production, LFCSP-10 package, -40 to +85°C.","metaKeywords":null},"attributes":{"series":"PulSAR®","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"PulSAR®","Package":"Bulk","Input Type":"Differential","Architecture":"SAR","Configuration":"ADC","Mounting Type":"Surface Mount","Data Interface":"DSP, MICROWIRE™, QSPI™, and SPI™","Number of Bits":"18","Package / Case":"10-VFDFN Exposed Pad, CSP","Reference Type":"External","Ratio - S/H:ADC":"0:1","lifecycle_stage":"eol_hot","Number of Inputs":"1","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"10-LFCSP-WD (3x3)","Number of A/D Converters":"1","Voltage - Supply, Analog":"2.3V ~ 5.25V","Voltage - Supply, Digital":"2.3V ~ 5.25V","Sampling Rate (Per Second)":"250k"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$19.56","stockQuantity":0,"priceTiers":[{"qty":16,"price":"$19.56000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/AD7691BCPZ-R2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/AD7691BCPZ-R2 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}}