{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX40658ETA+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX40658ETAT","canonicalUrl":"https://icboms.com/analog-devices/MAX40658ETAT","factsUrl":"https://icboms.com/api/mcp/products/MAX40658ETA%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX40658ETA+T, Transimpedance Amplifier, 1 Circuit, Differential Output, 520 MHz Gain Bandwidth, 3.3 V Supply, 8-TDFN (3x3), -40°C to 85°C.","salesMarkdown":"## What this transimpedance amplifier does The MAX40658ETA+T from Maxim Integrated is a single-channel transimpedance amplifier designed to convert photodiode current into a differential voltage output. Its 520 MHz gain-bandwidth product supports high-speed optical receivers, LIDAR front-ends, and fiber-optic links where bandwidth and low noise are critical. The differential output drives ADCs or subsequent stages with common-mode rejection, reducing susceptibility to ground bounce and coupled noise on the board. ## 520 MHz GBW — what it means for the link budget A 520 MHz gain-bandwidth product sets the usable transimpedance gain before the closed-loop bandwidth rolls off. For a typical photodiode capacitance of 1 pF, this part maintains a flat gain up to several hundred MHz, which is the difference between a clean eye diagram and a closed one in 1 Gbps optical links. The single 3.3 V supply simplifies rail design in systems that already run 3.3 V logic and FPGAs. ## Package and mounting The 8-TDFN (3x3) footprint keeps the signal path short — critical for preserving bandwidth and minimizing parasitic inductance from the photodiode to the input. Surface-mount assembly is standard for reflow processes. The exposed pad must be soldered to a ground plane for thermal and electrical performance; a via array under the pad helps pull heat into the inner layers. ## Temperature range and environment Rated for -40°C to 85°C, this amplifier suits industrial optical sensors, outdoor fiber-to-the-antenna equipment, and automotive LIDAR modules that see under-hood or cabin temperature swings. The 21 mA supply current is typical for a wideband TIA — budget for it in the power tree alongside the photodiode bias and ADC supply. ## Lifecycle and sourcing Maxim lists the MAX40658ETA+T as Active and ROHS3 compliant.","metaTitle":"MAX40658ETA+T Transimpedance Amplifier, 520 MHz GBW, 8-TDFN","metaDescription":"MAX40658ETA+T is a 520 MHz transimpedance amplifier with differential output in 8-TDFN. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Differential","Mounting Type":"Surface Mount","Amplifier Type":"Transimpedance","Package / Case":"8-WDFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Supply":"21mA","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C","Gain Bandwidth Product":"520 MHz","Supplier Device Package":"8-TDFN (3x3)","Voltage - Supply Span (Max)":"3.3 V","Voltage - Supply Span (Min)":"3.3 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.4","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.40000","currency":"USD"},{"qty":10,"price":"$5.74500","currency":"USD"},{"qty":25,"price":"$5.43120","currency":"USD"},{"qty":100,"price":"$4.70710","currency":"USD"},{"qty":250,"price":"$4.46572","currency":"USD"},{"qty":500,"price":"$4.00708","currency":"USD"},{"qty":1000,"price":"$3.37946","currency":"USD"},{"qty":2500,"price":"$3.21049","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6f3e27daa0287dcbcf541cd10ea6a392.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is MAX40658ETA+T obsolete or active?","answer":"The MAX40658ETA+T is listed as Active with no end-of-life notice. It is safe to use in new designs and ongoing production without LTB risk."},{"question":"What is a direct replacement for MAX40658ETA+T?","answer":"No direct pin-compatible replacement is listed in the available records. The MAX40658ETA+T is a current-production part, so the recommended path is to source the original through the RFQ process."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX40658ETAT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX40658ETAT 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}}