{"id":6790,"date":"2026-06-21T12:24:46","date_gmt":"2026-06-21T12:24:46","guid":{"rendered":"https:\/\/materialparts.com\/lm293dr\/"},"modified":"2026-06-21T12:24:46","modified_gmt":"2026-06-21T12:24:46","slug":"lm293dr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/lm293dr\/","title":{"rendered":"LM293DR"},"content":{"rendered":"

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

The LM293DR from Texas Instruments is a dual differential comparator with low input offset voltage, operating from single 2V to 36V or dual +\/-1V to +\/-18V supplies in an SOIC-8 package.<\/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
\u0627\u0644\u0646\u0648\u0639<\/td>\nDual Differential Comparator<\/td>\n<\/tr>\n
\u0627\u0644\u0642\u0646\u0648\u0627\u062a<\/td>\n2<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2 V to 36 V (single) or +\/-1 V to +\/-18 V<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0625\u0632\u0627\u062d\u0629 \u0627\u0644\u0645\u062f\u062e\u0644\u0627\u062a<\/td>\n1 mV (typical)<\/td>\n<\/tr>\n
Response Time<\/td>\n1.3 us (typical)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u062a\u062d\u064a\u0632 \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n25 nA (typical)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n16 mA (sink)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-8<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-25C to +85C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Wide 2 V to 36 V single supply range<\/li>\n
  • Low 1 mV typical input offset voltage<\/li>\n

Fast 1.3 us response time<\/li>\n
  • Open-collector outputs for wire-OR<\/li>\n
  • Input common-mode range includes ground<\/li>\n
  • Low input bias current (25 nA typical)<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Zero-crossing detection<\/li>\n
    • Voltage level comparison and monitoring<\/li>\n
    • Oscillator and timing circuits<\/li>\n
    • Window comparators and threshold detectors<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM293DR from Texas Instruments is a dual differential comparator with low input offset voltage, operating from single 2V to 36V or dual +\/-1V to +\/-18V supplies in an SOIC-8 package. Key Specifications Type Dual Differential Comparator Channels 2 Supply Voltage 2 V to 36 V (single) or +\/-1 V to +\/-18 V […]<\/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-6790","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Dual Diff Comparator, 2-36V, 1mV Vos, 1.3us, Open-Collector, SOIC-8","date_code":"","package_case":"SOIC-8 (4.9 x 3.9 x 1.5 mm)","in_stock":21345,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm393-n.pdf","price":"$0.22 @ 1ku","product_introduction":"The LM293DR from Texas Instruments is a dual differential comparator designed for operation from a single 2 V to 36 V supply or dual +\/-1 V to +\/-18 V supplies. The device features low 1 mV typical input offset voltage and fast 1.3 us response time, making it suitable for precision voltage comparison applications. The open-collector outputs allow wire-OR connection and interface with logic families from 5 V to 36 V. The input common-mode voltage range includes ground, enabling single-supply operation without level shifting. The LM293 is the industrial temperature grade of the popular LM393\/LM293\/LM393 family.","working_principle":"The LM293DR contains two independent voltage comparators. Each comparator has inverting (-) and non-inverting (+) inputs and an open-collector output. When the voltage at the non-inverting input exceeds the voltage at the inverting input, the output transistor turns off, and the output goes HIGH (determined by the external pull-up resistor). When the inverting input voltage exceeds the non-inverting input, the output transistor turns on, pulling the output LOW. The open-collector output configuration allows the output to sink up to 16 mA and enables wire-OR connections where multiple comparator outputs share a single pull-up resistor. The input stage uses PNP transistors, allowing the common-mode input range to extend to ground (0 V) for single-supply operation.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>1OUT<\/td>Output<\/td>Comparator 1 output (open-collector)<\/td><\/tr>
      2<\/td>1IN-<\/td>Input<\/td>Comparator 1 inverting input<\/td><\/tr>
      3<\/td>1IN+<\/td>Input<\/td>Comparator 1 non-inverting input<\/td><\/tr>
      4<\/td>GND<\/td>Power<\/td>Ground \/ negative supply<\/td><\/tr>
      5<\/td>2IN+<\/td>Input<\/td>Comparator 2 non-inverting input<\/td><\/tr>
      6<\/td>2IN-<\/td>Input<\/td>Comparator 2 inverting input<\/td><\/tr>
      7<\/td>2OUT<\/td>Output<\/td>Comparator 2 output (open-collector)<\/td><\/tr>
      8<\/td>V+<\/td>Power<\/td>Positive supply (2-36V)<\/td><\/tr><\/table>","application_scenarios":"
      • AC zero-crossing detector for TRIAC phase control<\/li>
      • Battery low-voltage monitoring with hysteresis<\/li>
      • Window comparator for over\/under voltage protection<\/li>
      • Relaxation oscillator for LED flasher circuits<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LM393DR<\/td>SOIC-8<\/td>0-70C commercial grade<\/td><\/tr>
        TI<\/td>LM2903DR<\/td>SOIC-8<\/td>Automotive grade, same family<\/td><\/tr>
        ST<\/td>LM293DT<\/td>SOIC-8<\/td>Pin-compatible equivalent<\/td><\/tr>
        onsemi<\/td>LM293DR2G<\/td>SOIC-8<\/td>Pin-compatible equivalent<\/td><\/tr>
        Microchip<\/td>MCP6541T-I\/SN<\/td>SOIC-8<\/td>CMOS, push-pull, lower power<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6790","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=6790"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6790\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6790"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6790"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}