{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC2309HF#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC2309HFPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC2309HFPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC2309HF%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC2309HF#PBF SAR ADC, 12-bit, 8-channel differential/single-ended, 14k samples/sec, I2C, 20-TSSOP, Tube.","salesMarkdown":"## Active 12-bit SAR ADC with I2C interface The LTC2309HF#PBF: The 14k samples-per-second throughput suits low-to-moderate speed industrial monitoring, temperature logging, or battery-voltage scanning where the I2C bus keeps wiring simple and the 12-bit resolution gives 1.22 mV per LSB at a 5 V reference — adequate for 0.1 % accuracy on a 0–10 V signal with external scaling. ## 8-channel input flexibility and I2C addressing The eight analog inputs can be configured as eight single-ended channels or four differential pairs, selected via the I2C-compatible interface. The selectable address feature allows up to eight LTC2309 devices on the same I2C bus, expanding to 64 single-ended or 32 differential channels without additional GPIO — useful for dense sensor arrays in a control cabinet. The reference can be internal (on-chip) or external, and the ADC operates from a single 5 V supply for both analog and digital rails — no dual-supply routing needed. The 1:1 S/H-to-ADC ratio means each conversion samples the input once, so the multiplexer settling time between channels must be respected in the firmware timing. ## 20-TSSOP package and industrial temperature range The tube packaging is typical for prototype and low-volume builds; for reel/tape quantities the ordering suffix changes. ROHS3 compliant — no exemptions for lead in solder or other restricted substances.","metaTitle":"LTC2309HF#PBF ADC 12-bit SAR 14k, I2C, 20-TSSOP","metaDescription":"LTC2309HF#PBF Analog Devices 12-bit SAR ADC, 8-channel, 14k samples/sec, I2C interface, 20-TSSOP. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Tube","Features":"Selectable Address","Input Type":"Differential, Single Ended","Architecture":"SAR","Configuration":"MUX-S/H-ADC","Mounting Type":"Surface Mount","Data Interface":"I2C","Number of Bits":"12","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width)","Reference Type":"External, Internal","Ratio - S/H:ADC":"1:1","lifecycle_stage":"eol_hot","Number of Inputs":"8","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"20-TSSOP","Number of A/D Converters":"1","Voltage - Supply, Analog":"5V","Voltage - Supply, Digital":"5V","Sampling Rate (Per Second)":"14k"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.73","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.73000","currency":"USD"},{"qty":10,"price":"$10.78000","currency":"USD"},{"qty":74,"price":"$10.33284","currency":"USD"},{"qty":148,"price":"$9.10405","currency":"USD"},{"qty":296,"price":"$8.65723","currency":"USD"},{"qty":518,"price":"$8.09869","currency":"USD"},{"qty":1036,"price":"$7.42845","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8f30a53951c549c7c1b8f4c96040534f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the data interface and how many channels does it support?","answer":"The ADC uses an I2C-compatible serial interface and supports eight analog inputs configurable as single-ended or differential. The selectable address lets multiple LTC2309 devices share the same bus."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC2309HFPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC2309HFPBF 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}}