{"id":6598,"date":"2026-06-18T15:31:22","date_gmt":"2026-06-18T15:31:22","guid":{"rendered":"https:\/\/materialparts.com\/lm393n\/"},"modified":"2026-06-18T15:31:22","modified_gmt":"2026-06-18T15:31:22","slug":"lm393n","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/lm393n\/","title":{"rendered":"LM393N"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The LM393N from Texas Instruments is a dual differential comparator with open-collector outputs, operating from 2V to 36V. With 1.3us typical response time and 0.4mA supply current, it is the industry standard for voltage comparison and threshold detection. Packaged in 8-PDIP.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0642\u0646\u0648\u0627\u062a<\/td>\n2 (Dual)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2V to 36V (single) or +\/-1V to +\/-18V<\/td>\n<\/tr>\n
Response Time<\/td>\n1.3us (typ)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0625\u0632\u0627\u062d\u0629 \u0627\u0644\u0645\u062f\u062e\u0644\u0627\u062a<\/td>\n+\/-1mV (typ)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u062a\u062d\u064a\u0632 \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n25nA (typ)<\/td>\n<\/tr>\n
Supply Current<\/td>\n0.4mA (typ, both comparators)<\/td>\n<\/tr>\n
\u0646\u0648\u0639 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\nOpen-collector (NPN)<\/td>\n<\/tr>\n
Output Sink Current<\/td>\n16mA (typ)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n8-PDIP<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n0 to +70 C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Wide supply voltage: 2V to 36V single supply<\/li>\n
  • Open-collector outputs for wired-OR<\/li>\n
  • Low input offset: +\/-1mV typical<\/li>\n
  • 1.3us typical response time<\/li>\n
  • 0.4mA total supply current<\/li>\n
  • Output compatible with TTL, MOS, and CMOS logic<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Voltage threshold detection<\/li>\n
    • Window comparator circuits<\/li>\n
    • Oscillator and timer circuits<\/li>\n
    • Sensor signal conditioning<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM393N from Texas Instruments is a dual differential comparator with open-collector outputs, operating from 2V to 36V. With 1.3us typical response time and 0.4mA supply current, it is the industry standard for voltage comparison and threshold detection. Packaged in 8-PDIP. Key Specifications Channels 2 (Dual) Supply Voltage 2V to 36V (single) or […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[],"chip_brand":[138],"class_list":["post-6598","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Dual comparator, open-collector output, 2-36V, 1.3us response, 8-PDIP","date_code":"","package_case":"8-PDIP","in_stock":11642,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm393-n.pdf","price":"$0.25 @ 1ku","product_introduction":"The LM393N from Texas Instruments is the industry standard dual differential comparator with open-collector outputs. It operates from a single 2V to 36V supply and features 1.3us typical response time, +\/-1mV typical input offset voltage, and only 0.4mA total supply current. The open-collector outputs allow wired-OR connections and interface with any logic voltage from 0 to VCC through external pull-up resistors. When the non-inverting input exceeds the inverting input, the output transistor turns off (high impedance); when the inverting input is higher, the output transistor turns on, sinking current to ground. This flexible output structure makes the LM393N suitable for a wide range of threshold detection, window comparison, and oscillator applications.","working_principle":"The LM393N uses a differential input stage followed by a gain stage and an open-collector NPN output transistor. The differential pair compares the two input voltages: when IN+ > IN-, the gain stage turns off the output transistor (output is high impedance, pulled high by external resistor); when IN+ < IN-, the gain stage turns on the output transistor (output saturates to near ground). The open-collector structure means the output can only sink current (pull to ground), never source it. This allows multiple comparator outputs to be wire-ORed together and the output pull-up voltage to be different from the comparator supply voltage. The 1.3us response time is the propagation delay from input crossing to output transition.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>1OUT<\/td>Channel 1 output (open collector)<\/td><\/tr>
      2<\/td>1IN-<\/td>Channel 1 inverting input<\/td><\/tr>
      3<\/td>1IN+<\/td>Channel 1 non-inverting input<\/td><\/tr>
      4<\/td>GND<\/td>Ground \/ negative supply<\/td><\/tr>
      5<\/td>2IN+<\/td>Channel 2 non-inverting input<\/td><\/tr>
      6<\/td>2IN-<\/td>Channel 2 inverting input<\/td><\/tr>
      7<\/td>2OUT<\/td>Channel 2 output (open collector)<\/td><\/tr>
      8<\/td>VCC<\/td>Positive supply (2-36V)<\/td><\/tr><\/table>","application_scenarios":"
      • Voltage threshold detection with hysteresis for sensor signal conditioning<\/li>
      • Window comparator circuits using two channels for over\/under voltage detection<\/li>
      • Oscillator circuits with open-collector output driving LEDs or relays<\/li>
      • Wired-OR fault detection with multiple comparator outputs on a shared bus<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        LM339N<\/td>TI<\/td>Quad comparator, same architecture<\/td><\/tr>
        LM2903N<\/td>TI<\/td>Automotive grade, -40 to +125C<\/td><\/tr>
        LMV393<\/td>TI<\/td>Low voltage (2.7-5V), lower power<\/td><\/tr>
        TS881<\/td>ST<\/td>Nanopower comparator, 210nA<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6598","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=6598"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6598\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6598"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6598"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}