{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADS1256IDBR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ADS1256IDBR","canonicalUrl":"https://icboms.com/texas-instruments/ADS1256IDBR","factsUrl":"https://icboms.com/api/mcp/products/ADS1256IDBR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ADS1256IDBR, 24-bit Sigma-Delta ADC, 30 kSPS, SPI, PGA, 8-channel differential/single-ended, SSOP-28, -40°C to 85°C.","salesMarkdown":"The Texas Instruments ADS1256IDBR is a 24-bit Sigma-Delta ADC with an integrated programmable gain amplifier (PGA) and an input multiplexer (MUX-PGA-ADC configuration). It samples at 30 kSPS and communicates over an SPI interface. The 24-bit resolution gives this ADC a theoretical dynamic range of about 138 dB, making it suitable for precision measurement applications like weigh scales, pressure transducers, and thermocouple interfaces where microvolt-level signals need to be resolved. The 30 kSPS sampling rate is fast enough for multiplexing across all eight inputs (single-ended) or four differential pairs without dropping below 3.75 kSPS per channel, which covers most industrial sensor readout rates. ## Supply rails and signal interface — what to budget on the board The PGA feature (listed as a key feature) provides gain settings that amplify small sensor signals before conversion, reducing the noise contribution from downstream stages. The input multiplexer accepts both differential and single-ended signals, with up to four differential or eight single-ended channels.","metaTitle":"ADS1256IDBR 24-Bit Sigma-Delta ADC, 30 kSPS, SPI, SSOP-28","metaDescription":"TI ADS1256IDBR 24-bit Sigma-Delta ADC, 30 kSPS, SPI, PGA, 8-channel, -40°C to 85°C, SSOP-28.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"PGA","Input Type":"Differential, Single Ended","Architecture":"Sigma-Delta","Configuration":"MUX-PGA-ADC","Mounting Type":"Surface Mount","Data Interface":"SPI","Number of Bits":"24","Package / Case":"28-SSOP (0.209\\\", 5.30mm Width)","Product Status":"Active","Reference Type":"External","Ratio - S/H:ADC":"-","lifecycle_stage":"eol_hot","Number of Inputs":"4, 8","Base Product Number":"ADS1256","Operating Temperature":"-40°C~85°C","Supplier Device Package":"28-SSOP","Number of A/D Converters":"1","Voltage - Supply, Analog":"5V","Voltage - Supply, Digital":"1.8V ~ 3.6V","Sampling Rate (Per Second)":"30k"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$16.8300","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/63bebeea41a62d0fa4265864be01e5cb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can ADS1256IDBR replace ADS1256IDB?","answer":"The ADS1256IDBR and ADS1256IDB share the same base product number (ADS1256) and identical electrical specifications. The difference is packaging: the 'R' suffix indicates tape-and-reel (suitable for pick-and-place), while the non-R variant typically ships in tubes. They are functionally identical and pin-compatible."},{"question":"What is the resolution of ADS1256IDBR?","answer":"The ADS1256IDBR is a 24-bit ADC. This means it can resolve the analog input into 16,777,216 discrete steps, providing microvolt-level sensitivity when used with the internal PGA."},{"question":"What is the accuracy of ADS1256IDBR?","answer":"Accuracy depends on the external reference voltage and the PGA gain setting. With a 5 V reference and the PGA set to unity gain, the least significant bit (LSB) size is approximately 0.298 µV. The Sigma-Delta architecture provides excellent noise shaping, but the effective number of bits (ENOB) will be lower than 24 bits at the full 30 kSPS rate — typically around 20 to 21 bits for most applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ADS1256IDBR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ADS1256IDBR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}