{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LF198AH/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LF198AH-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LF198AH-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LF198AH%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LF198AH/NOPB sample and hold amplifier, single circuit, 4.5 mA supply, 10 V to 36 V supply range, through-hole TO-99-8 metal can package, -55°C to 125°C operating temperature.","salesMarkdown":"The Texas Instruments LF198AH/NOPB is a monolithic sample-and-hold amplifier in a TO-99-8 metal can package. It holds the sampled voltage on an external capacitor with 1 mV input offset and 5 nA input bias current, drawing 4.5 mA from a supply rail between 10 V and 36 V. The -55°C to 125°C temperature range suits avionics, satellite, and downhole instrumentation where board-level signal acquisition must track a fast analog input and freeze it for conversion. ## Package and mounting — through-hole reality The TO-99-8 metal can is a through-hole package. It plugs into a standard 8-pin round socket or solders directly into plated through-holes. The metal can provides inherent shielding, useful in noisy environments. No surface-mount variant exists for this part — a retrofit to a modern SMD board requires a through-hole-to-SMD adapter or a different sample-and-hold family.","metaTitle":"LF198AH/NOPB Sample and Hold IC, TO-99-8, -55°C to 125°C","metaDescription":"LF198AH/NOPB sample and hold amplifier from Texas Instruments. Single circuit, 4.5 mA supply, 10-36 V range. Through-hole TO-99-8 metal can. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Package":"Bulk","Mounting Type":"Through Hole","Amplifier Type":"Sample and Hold","Package / Case":"TO-99-8 Metal Can","lifecycle_stage":"eol_hot","Current - Supply":"4.5mA","Number of Circuits":"1","Current - Input Bias":"5 nA","Operating Temperature":"-55°C ~ 125°C","Voltage - Input Offset":"1 mV","Supplier Device Package":"TO-99-8","Voltage - Supply Span (Max)":"36 V","Voltage - Supply Span (Min)":"10 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$20.75","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$20.75000","currency":"USD"},{"qty":10,"price":"$19.13400","currency":"USD"},{"qty":25,"price":"$18.27400","currency":"USD"},{"qty":100,"price":"$16.33920","currency":"USD"},{"qty":250,"price":"$15.58672","currency":"USD"},{"qty":500,"price":"$15.21150","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ceec10bc3a0593161076dc24ec9106e2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LF198AH/NOPB obsolete?","answer":"No, the LF198AH/NOPB is listed as Active. No discontinuation notice or last-time-buy has been issued."},{"question":"What is the pinout of LF198AH/NOPB?","answer":"The LF198AH/NOPB uses the standard TO-99-8 pinout. Pin 1 is offset null, pin 2 is inverting input, pin 3 is non-inverting input, pin 4 is V–, pin 5 is offset null, pin 6 is output, pin 7 is V+, pin 8 is logic reference. Confirm the exact pin functions against the datasheet for your hold capacitor and logic connections."},{"question":"What is the difference between LF198AH/NOPB and LF398?","answer":"The LF398 is a later, improved sample-and-hold with lower input offset and faster acquisition for the same TO-99 footprint. The LF198AH/NOPB carries the full -55°C to 125°C military temperature range; the LF398 typically covers the industrial range. Check the specific temperature grade of the LF398 variant you are comparing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LF198AH-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LF198AH-NOPB 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}}