{"id":7941,"date":"2026-06-28T06:01:41","date_gmt":"2026-06-28T06:01:41","guid":{"rendered":"https:\/\/materialparts.com\/lm339n-2\/"},"modified":"2026-06-28T11:45:36","modified_gmt":"2026-06-28T11:45:36","slug":"lm339n-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/lm339n-2\/","title":{"rendered":"LM339N"},"content":{"rendered":"

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

The LM339N from Texas Instruments is a quad differential comparator with open-collector outputs, 2V-36V supply range, input common-mode range including ground, and 1.3\u00b5s response time in a 14-pin PDIP 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\n\n\n\n\n\n
Number of Comparators<\/td>\n4 (independent)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2V to 36V (single) or \u00b11V to \u00b118V (dual)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0625\u0632\u0627\u062d\u0629 \u0627\u0644\u0645\u062f\u062e\u0644\u0627\u062a<\/td>\n2mV typical, 5mV max<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u062a\u062d\u064a\u0632 \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n25nA typical<\/td>\n<\/tr>\n
Input Offset Current<\/td>\n\u00b15nA typical<\/td>\n<\/tr>\n
Input Common-Mode Range<\/td>\n0V to V+\u22121.5V (includes ground)<\/td>\n<\/tr>\n
Differential Input Voltage<\/td>\nUp to 36V<\/td>\n<\/tr>\n
\u0646\u0648\u0639 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\nOpen-collector (sinks to GND)<\/td>\n<\/tr>\n
Output Sink Current<\/td>\n6mA min, 16mA typical<\/td>\n<\/tr>\n
Output Saturation Voltage<\/td>\n250mV max @ ISINK=4mA<\/td>\n<\/tr>\n
Response Time<\/td>\n1.3\u00b5s typical<\/td>\n<\/tr>\n
Supply Current (all 4)<\/td>\n0.8mA typical<\/td>\n<\/tr>\n
Voltage Gain<\/td>\n200 V\/mV typical<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n0\u00b0C to +70\u00b0C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nPDIP-14 (19.3 x 6.35mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Four independent comparators<\/li>\n
  • Open-collector outputs for wired-AND<\/li>\n
  • Input common-mode range includes ground<\/li>\n
  • Low input offset voltage: 2mV typical<\/li>\n
  • Low supply current: 0.8mA for all four<\/li>\n
  • Wide supply range: 2V to 36V<\/li>\n
  • TTL, CMOS, MOS logic compatible output<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Voltage level detection<\/li>\n
    • Window comparator<\/li>\n
    • Oscillator (RC relaxation)<\/li>\n
    • Zero-crossing detector<\/li>\n
    • Battery monitor<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM339N from Texas Instruments is a quad differential comparator with open-collector outputs, 2V-36V supply range, input common-mode range including ground, and 1.3\u00b5s response time in a 14-pin PDIP package. Key Specifications Number of Comparators 4 (independent) Supply Voltage 2V to 36V (single) or \u00b11V to \u00b118V (dual) Input Offset Voltage 2mV typical, […]<\/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":[21,13],"tags":[],"chip_brand":[138],"class_list":["post-7941","post","type-post","status-publish","format-standard","hentry","category-audio-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Quad comparator, open-collector, 2-36V, GND-referenced input, PDIP-14","date_code":"","package_case":"PDIP-14 (19.3 x 6.35 x 4.57mm, 2.54mm pitch, through-hole)","in_stock":12000,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm339-n.pdf","price":"$0.517 @ 1ku","product_introduction":"The LM339N from Texas Instruments contains four independent precision voltage comparators in a single 14-pin PDIP package. Each comparator has an open-collector output that can sink up to 16mA, making it directly compatible with TTL, CMOS, and MOS logic. The open-collector architecture allows wired-AND connections: multiple outputs tied together with a single pull-up resistor create a logical AND \u2014 the combined output is HIGH only when all individual outputs are HIGH (i.e., all comparators see their non-inverting input above their inverting input). The input common-mode voltage range extends from ground (0V) to V+\u22121.5V, which is unique because most comparators cannot accept inputs at the negative rail. The 2mV typical input offset voltage provides excellent precision for threshold detection. The 0.8mA total supply current for all four comparators makes the LM339 ideal for battery-powered applications. The N suffix denotes the commercial temperature range (0\u00b0C to +70\u00b0C) in a PDIP-14 package.","working_principle":"Each of the four comparators in the LM339N continuously compares the voltage at its non-inverting input (+) with the voltage at its inverting input (\u2212). When V+ > V\u2212, the output transistor is OFF and the open-collector output floats (appears HIGH when a pull-up resistor is connected to a positive supply). When V+ < V\u2212, the output transistor turns ON and sinks current to ground, pulling the output LOW. There is no feedback \u2014 the comparator operates in open-loop, providing a digital (HIGH\/LOW) output based on the relative input voltages. The output cannot source current; it can only sink. A pull-up resistor (typically 1k\u03a9 to 10k\u03a9) from the output to the logic supply voltage is always required. For a voltage threshold detector, a reference voltage is applied to the inverting input (e.g., from a voltage divider) and the signal is applied to the non-inverting input. When the signal exceeds the reference, the output goes HIGH. For a window comparator, two comparators are used: one detects the upper limit and the other detects the lower limit; their open-collector outputs are tied together so the combined output is HIGH only when the input is within the window.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      1<\/td>1OUT<\/td>Output<\/td>Comparator 1 output (open-collector)<\/td><\/tr>\n
      2<\/td>2OUT<\/td>Output<\/td>Comparator 2 output (open-collector)<\/td><\/tr>\n
      3<\/td>VCC<\/td>Power<\/td>Positive supply (2V to 36V)<\/td><\/tr>\n
      4<\/td>2IN\u2212<\/td>Input<\/td>Comparator 2 inverting input<\/td><\/tr>\n
      5<\/td>2IN+<\/td>Input<\/td>Comparator 2 non-inverting input<\/td><\/tr>\n
      6<\/td>1IN\u2212<\/td>Input<\/td>Comparator 1 inverting input<\/td><\/tr>\n
      7<\/td>1IN+<\/td>Input<\/td>Comparator 1 non-inverting input<\/td><\/tr>\n
      8<\/td>3IN\u2212<\/td>Input<\/td>Comparator 3 inverting input<\/td><\/tr>\n
      9<\/td>3IN+<\/td>Input<\/td>Comparator 3 non-inverting input<\/td><\/tr>\n
      10<\/td>4IN\u2212<\/td>Input<\/td>Comparator 4 inverting input<\/td><\/tr>\n
      11<\/td>4IN+<\/td>Input<\/td>Comparator 4 non-inverting input<\/td><\/tr>\n
      12<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>\n
      13<\/td>4OUT<\/td>Output<\/td>Comparator 4 output (open-collector)<\/td><\/tr>\n
      14<\/td>3OUT<\/td>Output<\/td>Comparator 3 output (open-collector)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Voltage Monitor:<\/strong> IN+ = battery voltage divider; IN\u2212 = TL431 reference (2.5V); output LOW when battery drops below threshold; drives LED indicator<\/li>\n
      • Window Comparator:<\/strong> Two comparators with different thresholds; open-collector outputs tied together; HIGH only when input is within range<\/li>\n
      • RC Oscillator:<\/strong> Positive feedback through resistor divider; RC on negative input; self-oscillating at ~1\/(2\u00d7R\u00d7C\u00d7ln(3))<\/li>\n
      • Zero-Crossing:<\/strong> IN+ at GND; IN\u2212 from AC via resistor; output transitions at each zero crossing of the AC waveform<\/li>\n
      • Motor Control:<\/strong> Multiple comparators sense current shunt voltages; open-collector outputs wired-AND for overcurrent shutdown<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th>Package<\/th>Specs<\/th><\/tr>\n
        LM339AN<\/td>TI<\/td>Improved version with lower 2mV max offset voltage for precision multi-channel comparison<\/td>DIP-14<\/td>1.3\u00b5s\/4-ch<\/td><\/tr>\n
        LM2901N<\/td>TI<\/td>Automotive-grade -40 to +125C version with enhanced ESD for harsh automotive environments<\/td>DIP-14<\/td>1.3\u00b5s\/-40-125C<\/td><\/tr>\n
        LM393N<\/td>TI<\/td>Dual comparator version in DIP-8 for applications requiring only two comparator channels<\/td>DIP-8<\/td>1.3\u00b5s\/2-ch<\/td><\/tr>\n
        TLV3204AIDR<\/td>TI<\/td>Quad 40ns high-speed comparator with push-pull output for fast multi-signal detection<\/td>SOIC-14<\/td>40ns\/2.7-5.5V<\/td><\/tr>\n
        TSX3704IPT<\/td>ST<\/td>Quad micropower comparator with 10\u00b5A supply current per comparator for battery systems<\/td>TSSOP-14<\/td>10\u00b5A\/2.5-6V<\/td><\/tr>\n<\/table>\n

        LM339N is the industry-standard quad voltage comparator in DIP-14 with open-drain outputs and 2-36V supply range. All four comparators share common power rails. LM339AN offers lower 2mV offset. For automotive use, LM2901 extends temperature to 125C. For high-speed applications, TLV3204 provides 40ns response at 2.7-5.5V. The dual version LM393 provides 2 channels in DIP-8.<\/p>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7941","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=7941"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7941\/revisions"}],"predecessor-version":[{"id":8230,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7941\/revisions\/8230"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7941"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7941"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}