{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX931CSA+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX931CSAT","canonicalUrl":"https://icboms.com/analog-devices/MAX931CSAT","factsUrl":"https://icboms.com/api/mcp/products/MAX931CSA%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX931CSA+T, single comparator with integrated voltage reference, 4µA quiescent current, 12µs propagation delay, 50mV hysteresis, CMOS/TTL output, 8-SOIC package, Tape & Reel.","salesMarkdown":"## Comparator with on-chip voltage reference The MAX931CSA+T is a single comparator from Analog Devices that integrates a precision voltage reference on-chip, eliminating the need for an external reference diode in threshold-detection circuits. It draws a maximum quiescent current of 4µA, making it suitable for battery-powered or always-on monitoring where supply current is the binding constraint. The 12µs propagation delay sets the response ceiling — for a 50/60 Hz line monitor or a slow-changing sensor threshold, this is more than adequate; for a high-speed overcurrent trip, a faster comparator would be needed. ## Supply range and output drive The single-supply range spans 2.5V to 11V, or ±1.25V to ±5.5V in split-supply mode, covering common 3.3V, 5V, and ±5V rails without an extra regulator. The CMOS/TTL output sinks or sources 0.015mA typical at 5V — enough to drive a logic gate input or a low-power LED indicator, but not a relay coil directly. Built-in 50mV hysteresis prevents output chatter when the input signal crosses the threshold slowly or carries noise — a common issue in battery-monitor and thermostat circuits. ## Package and temperature grade Housed in an 8-SOIC package (0.154\" body width, 3.90mm), the footprint matches the industry-standard SOIC-8 land pattern — no special pad geometry or thermal vias required. CMRR and PSRR are both 80dB typical, meaning the threshold accuracy holds up well against common-mode shifts and supply ripple — relevant when the comparator shares a rail with a switching regulator.","metaTitle":"MAX931CSA+T Analog Devices Comparator, 12µs, 8-SOIC","metaDescription":"MAX931CSA+T single comparator with integrated voltage reference. 4µA quiescent current, 12µs propagation delay, 50mV hysteresis. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"with Voltage Reference","Package":"Tape & Reel (TR); Cut Tape (CT)","Hysteresis":"50mV","Output Type":"CMOS, TTL","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","CMRR, PSRR (Typ)":"80dB CMRR, 80dB PSRR","Number of Elements":"1","Operating Temperature":"0°C ~ 70°C","Current - Output (Typ)":"0.015mA @ 5V","Propagation Delay (Max)":"12µs","Supplier Device Package":"8-SOIC","Current - Quiescent (Max)":"4µA","Voltage - Input Offset (Max)":"10mV @ 5V","Voltage - Supply, Single/Dual (±)":"2.5V ~ 11V, ±1.25V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.16","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.16000","currency":"USD"},{"qty":10,"price":"$5.52900","currency":"USD"},{"qty":25,"price":"$5.22680","currency":"USD"},{"qty":100,"price":"$4.52980","currency":"USD"},{"qty":250,"price":"$4.29756","currency":"USD"},{"qty":500,"price":"$3.85618","currency":"USD"},{"qty":1000,"price":"$3.25220","currency":"USD"},{"qty":2500,"price":"$3.08959","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3ff20f9570cb1853014861278f49fdfd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the propagation delay and why does it matter?","answer":"The maximum propagation delay is 12µs. This sets the fastest input transition the comparator can track — for a 50/60 Hz line monitor or a slow battery-voltage threshold, it is fine; for a high-speed overcurrent trip or a fast PWM cycle, a faster comparator is needed."},{"question":"Does MAX931CSA+T include an internal voltage reference?","answer":"Yes, the device integrates a voltage reference on-chip, so no external reference diode or resistor divider is needed for threshold detection. The reference is part of the comparator's internal architecture."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX931CSAT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX931CSAT 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}}