{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMH6643MMX","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMH6643MMX","canonicalUrl":"https://icboms.com/texas-instruments/LMH6643MMX","factsUrl":"https://icboms.com/api/mcp/products/LMH6643MMX","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMH® series LMH6643MMX, dual voltage feedback op-amp, 135 V/µs slew rate, 130 MHz -3dB bandwidth, rail-to-rail output, 8-VSSOP package.","salesMarkdown":"## Dual high-speed op-amp for bandwidth-limited signal chains Each channel draws 2.7 mA quiescent current, keeping the total power budget under 8 mW per amplifier at 3 V. At 135 V/µs, this part slews a 5 Vpp output in about 37 ns, cleanly passing composite video (NTSC/PAL) and high-speed pulse trains without slew-induced distortion. For a 10-bit ADC sampling at 20 MSPS, the full-power bandwidth clears the third Nyquist zone — something a general-purpose 5 V/µs op-amp cannot touch. The trade-off: 1.6 µA input bias current and 1 mV input offset voltage are higher than CMOS-input precision amps, so DC-coupled high-gain stages need offset trimming or accept the error. ## Package and footprint notes Supplied in an 8-VSSOP (3.00 mm width MSOP) — a compact footprint for dense mixed-signal boards. The surface-mount package is MSL 1 out of the bag per the LMH® series typical rating; no bake needed before reflow if the moisture barrier pouch is intact. The bulk shipping medium means parts come loose in a bag, not on tape — plan for manual pick-and-place or tube feeding if your line is set up for reels.","metaTitle":"Texas Instruments LMH6643MMX Dual Voltage Feedback Op-Amp","metaDescription":"Dual voltage feedback op-amp from the LMH® series. 135 V/µs slew rate, 130 MHz bandwidth, rail-to-rail output in 8-VSSOP.","metaKeywords":null},"attributes":{"series":"LMH®","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"LMH®","Package":"Bulk","Slew Rate":"135V/µs","Output Type":"Rail-to-Rail","Mounting Type":"Surface Mount","-3db Bandwidth":"130 MHz","Amplifier Type":"Voltage Feedback","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"2.7mA (x2 Channels)","Number of Circuits":"2","Current - Input Bias":"1.6 µA","Operating Temperature":"-40°C ~ 85°C","Voltage - Input Offset":"1 mV","Supplier Device Package":"8-VSSOP","Current - Output / Channel":"75 mA","Voltage - Supply Span (Max)":"12.8 V","Voltage - Supply Span (Min)":"2.7 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0","stockQuantity":0,"priceTiers":[{"qty":301,"price":"$1.00000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9eda2fb058b8012870ece364218758d5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the alternatives to LMH6643MMX?","answer":"For a lower-speed, lower-power dual op-amp with wider temperature range, the TLV9362IDDFR (10.6 MHz, 25 V/µs, 2.6 mA per channel, -40°C to 125°C) is a functional alternative. For a single-channel part with higher bandwidth, the THS4215 (350 MHz, 970 V/µs) handles faster signals but at higher supply current. Neither is pin-compatible; the LMH6643MMX sits in the 135 V/µs performance tier with no exact second-source."},{"question":"Is LMH6643MMX rail-to-rail?","answer":"Yes, the output type is rail-to-rail. The input common-mode range is not rail-to-rail — it extends to 1.1 V below the positive rail in typical operation, so it cannot sense at the top rail in single-supply configurations. The output swings cleanly to within tens of millivolts of both rails under light load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMH6643MMX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMH6643MMX 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}}