{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AD7705BRUZ-REEL","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"AD7705BRUZ-REEL","canonicalUrl":"https://icboms.com/analog-devices/AD7705BRUZ-REEL","factsUrl":"https://icboms.com/api/mcp/products/AD7705BRUZ-REEL","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices AD7705BRUZ-REEL, 16-bit sigma-delta ADC, 2 differential inputs, PGA, SPI/DSP interface, 500 SPS, 2.7V-5V supply, -40°C to 85°C, 16-TSSOP, Tape & Reel.","salesMarkdown":"## What the AD7705BRUZ-REEL is and where it fits The Analog Devices AD7705BRUZ-REEL is a 16-bit sigma-delta ADC in a 16-TSSOP package, built around a MUX-PGA-ADC architecture. It accepts two differential inputs through an on-chip multiplexer and programmable gain amplifier (PGA), then digitises at a maximum sampling rate of 500 SPS. The serial interface supports SPI and DSP protocols, so it ties directly to the SPI port of most microcontrollers or DSPs without external logic. The dual supply range — 2.7 V to 3.3 V or 5 V on both analog and digital rails — means it can run from a single 3.3 V or 5 V supply in many designs. The industrial temperature grade of -40°C to 85°C suits it for factory-floor instrumentation, weigh scales, pressure transmitters, and other low-speed precision measurement applications. ## 500 SPS — what the sampling rate means for the design At 500 SPS this is a low-bandwidth ADC, not a high-speed acquisition part. The 16-bit resolution and sigma-delta architecture trade conversion speed for noise rejection. ## Package and supply — what to check on the layout The 16-TSSOP body is 4.40 mm wide — a compact footprint that fits tight analog front-end sections. The supply pins accept 2.7 V to 3.3 V or 5 V on both analog and digital sides, so a single 3.3 V rail works if the reference voltage and input signals stay within that range. The reference is external (not on-chip), so the layout needs a clean reference voltage source — a precision shunt or series reference — placed close to the REF IN pins. The SPI/DSP interface runs at the master clock rate; keep the serial clock trace short and away from the analog input traces to avoid coupling noise into the sigma-delta modulator.","metaTitle":"AD7705BRUZ-REEL 16-bit sigma-delta ADC, 500 SPS, TSSOP-16","metaDescription":"ADI AD7705BRUZ-REEL 16-bit sigma-delta ADC, 2-ch differential, PGA, SPI/DSP, 500 SPS, -40°C to 85°C, 16-TSSOP. Active, RoHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"PGA","Input Type":"Differential","Architecture":"Sigma-Delta","Configuration":"MUX-PGA-ADC","Mounting Type":"Surface Mount","Data Interface":"SPI, DSP","Number of Bits":"16","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","Reference Type":"External","lifecycle_stage":"eol_hot","Number of Inputs":"2","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"16-TSSOP","Number of A/D Converters":"1","Voltage - Supply, Analog":"2.7V ~ 3.3V, 5V","Voltage - Supply, Digital":"2.7V ~ 3.3V, 5V","Sampling Rate (Per Second)":"500"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.92","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$12.92000","currency":"USD"},{"qty":10,"price":"$11.87100","currency":"USD"},{"qty":25,"price":"$11.37920","currency":"USD"},{"qty":100,"price":"$10.02600","currency":"USD"},{"qty":250,"price":"$9.53388","currency":"USD"},{"qty":500,"price":"$8.91880","currency":"USD"},{"qty":1000,"price":"$8.18070","currency":"USD"},{"qty":2500,"price":"$7.87315","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/AD7705_7706.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between AD7705BRUZ-REEL and AD7705BRUZ?","answer":"The AD7705BRUZ-REEL ships in Tape & Reel packaging; the AD7705BRUZ (without the -REEL suffix) typically ships in tube or tray. The die, package, and electrical specifications are identical."},{"question":"Is AD7705BRUZ-REEL compatible with 3.3V systems?","answer":"Yes. The analog and digital supply ranges both cover 2.7 V to 3.3 V, so a single 3.3 V rail meets the supply requirement. The SPI interface levels follow the digital supply voltage."},{"question":"When sourcing AD7705BRUZ-REEL, what is the closest functional second-source?","answer":"The AD7705BRZ-REEL is the same die in an alternate reel format — functionally identical pinout and package. For a 24-bit alternative with three differential inputs, the AD7799BRUZ-REEL is a higher-resolution option but shares the same SPI interface and package footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/AD7705BRUZ-REEL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/AD7705BRUZ-REEL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-13T23:52:34.506Z","lastPublished":"2026-07-13T23:52:34.506Z","indexable":true}}