{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MCP3201-CI/P","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MCP3201-CI-P","canonicalUrl":"https://icboms.com/microchip/MCP3201-CI-P","factsUrl":"https://icboms.com/api/mcp/products/MCP3201-CI%2FP","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology MCP3201-CI/P 12-bit SAR ADC, 100k SPS, SPI, Pseudo-Differential Input, 2.7-5.5V, 8-DIP (0.300\", 7.62mm), Tube.","salesMarkdown":"## 12-bit SAR ADC with a breadboard-friendly DIP footprint The MCP3201-CI/P is a 12-bit successive-approximation (SAR) ADC from Microchip Technology that samples at 100k samples per second over an SPI bus — fast enough for most sensor readouts, audio capture, or control-loop feedback in a microcontroller project. It runs on a single 2.7V to 5.5V supply (both analog and digital rails share the same range), so it fits comfortably in a 3.3V or 5V system without needing a separate reference rail — just one external voltage reference for the conversion span. The 8-pin DIP package (0.300\" width, 7.62mm pitch) is the kind you can drop into a breadboard or perfboard and hand-solder in a few minutes — no hot-air station or fine-pitch work required. ## What the pseudo-differential input means on your bench Pseudo-differential input means the ADC measures the voltage on the IN+ pin relative to the IN- pin, but IN- is typically tied to a fixed reference (often analog ground) rather than driven by a separate signal — it rejects common-mode noise on the signal pair better than a true single-ended input, without needing a fully differential front end. For a single sensor reading, you connect the sensor output to IN+ and ground IN- to the same analog ground plane — the 1:1 S/H-to-ADC ratio means each sample is a fresh conversion with no pipeline delay, so the output at the SPI bus is the current reading, not a delayed one.","metaTitle":"Microchip MCP3201-CI/P 12-bit SAR ADC, 100k SPS, 8-DIP","metaDescription":"12-bit SAR ADC, 100k samples per second, SPI interface, 2.7-5.5V supply, 8-DIP through-hole package. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Input Type":"Pseudo-Differential","Architecture":"SAR","Configuration":"S/H-ADC","Mounting Type":"Through Hole","Data Interface":"SPI","Number of Bits":"12","Package / Case":"8-DIP (0.300\\\", 7.62mm)","Reference Type":"External","Ratio - S/H:ADC":"1:1","lifecycle_stage":"eol_hot","Number of Inputs":"1","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"8-PDIP","Number of A/D Converters":"1","Voltage - Supply, Analog":"2.7V ~ 5.5V","Voltage - Supply, Digital":"2.7V ~ 5.5V","Sampling Rate (Per Second)":"100k"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.28","priceTiers":[{"qty":1,"price":"$3.28000","currency":"USD"},{"qty":25,"price":"$2.72440","currency":"USD"},{"qty":100,"price":"$2.48040","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f0d83c70e91d3e04375cca43c8831474.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MCP3201-CI%2FP/alternatives.json"},"ai":{"faq":[{"question":"What is the MCP3201-CI/P's input type and how does it affect my circuit?","answer":"It uses a pseudo-differential input — you connect the signal to IN+ and a reference (typically analog ground) to IN-. This gives better common-mode noise rejection than a pure single-ended input without needing a differential driver, which is handy when your sensor signal shares a ground with noisy digital lines."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MCP3201-CI-P","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MCP3201-CI-P 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}}