{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMH6646MM","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMH6646MM","canonicalUrl":"https://icboms.com/texas-instruments/LMH6646MM","factsUrl":"https://icboms.com/api/mcp/products/LMH6646MM","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMH6646MM dual voltage-feedback op-amp, 55 MHz bandwidth, 22 V/µs slew rate, rail-to-rail output, 8-VSSOP package, industrial temperature range.","salesMarkdown":"## Dual voltage-feedback amplifier with 55 MHz bandwidth The LMH6646MM is a dual-channel voltage-feedback op-amp from Texas Instruments, offering a -3 dB bandwidth of 55 MHz and a slew rate of 22 V/µs — these speed parameters suit it for signal conditioning in high-frequency analog front-ends where settling time and phase margin matter. Each channel draws 725 µA supply current, so the total quiescent for both amplifiers is 1.45 mA — low enough for multi-channel designs where the power budget is tight, such as battery-powered instrumentation or multi-zone sensor interfaces. The rail-to-rail push-pull output stage delivers ±20 mA per channel, which drives the input of an ADC or a moderate cable capacitance without external buffer stages. ## Supply flexibility and temperature grade Operating from a single supply span of 2.5 V to 12 V, the LMH6646MM covers both 3.3 V and 5 V logic rails as well as higher-voltage industrial supplies — the wide range means the same BOM position works across multiple board variants without a regulator change. Rated for -40°C to 85°C ambient, the device is specified for industrial environments — control cabinets, outdoor telecom shelters, and factory-floor sensor modules that see seasonal temperature swings. Input offset voltage is 1 mV typical, and input bias current is 650 nA — these DC specs are adequate for precision DC-coupled paths where the signal floor is above a few millivolts; for sub-millivolt sensor front-ends, a CMOS-input amplifier with picoamp bias would be a tighter fit. ## Package and lifecycle status Housed in an 8-VSSOP package (3.00 mm width, 0.118-inch pitch), the LMH6646MM uses the standard MSOP-8 footprint — the same land pattern as many other dual op-amps in this package, so a PCB already routed for a generic MSOP-8 accepts this part without layout changes. The part is marked as RoHS non-compliant, which means it contains lead (Pb) above the exemption threshold — confirm your assembly house's solder profile and the end-market RoHS exemption status before committing the BOM line.","metaTitle":"Texas Instruments LMH6646MM Dual Voltage Feedback Op-Amp","metaDescription":"Active-production dual voltage-feedback op-amp from TI. 55 MHz bandwidth, 22 V/µs slew rate, rail-to-rail output. 8-VSSOP package. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Package":"Bulk","Slew Rate":"22V/µs","Output Type":"Push-Pull, Rail-to-Rail","Mounting Type":"Surface Mount","-3db Bandwidth":"55 MHz","Amplifier Type":"Voltage Feedback","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"725µA (x2 Channels)","Number of Circuits":"2","Current - Input Bias":"650 nA","Operating Temperature":"-40°C ~ 85°C","Voltage - Input Offset":"1 mV","Supplier Device Package":"8-VSSOP","Current - Output / Channel":"20 mA","Voltage - Supply Span (Max)":"12 V","Voltage - Supply Span (Min)":"2.5 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.86","stockQuantity":30,"priceTiers":[{"qty":105,"price":"$2.86000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/48cd62e77e16af60aa60730b3c01b147.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is LMH6646MM's slew rate and bandwidth?","answer":"The LMH6646MM has a slew rate of 22 V/µs and a -3 dB bandwidth of 55 MHz, making it suitable for high-speed signal conditioning in analog front-ends."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMH6646MM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMH6646MM 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}}