{"id":7895,"date":"2026-06-28T03:21:04","date_gmt":"2026-06-28T03:21:04","guid":{"rendered":"https:\/\/ic-vendor.com\/lm393dr-3\/"},"modified":"2026-06-28T11:46:32","modified_gmt":"2026-06-28T11:46:32","slug":"lm393dr-3","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/lm393dr-3\/","title":{"rendered":"LM393DR"},"content":{"rendered":"

Productos<\/h2>\n

The LM393DR is a dual differential comparator from Texas Instruments with open-collector outputs, low offset voltage, and single\/dual supply operation in an SOIC-8 package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Number of Comparators<\/td>\n2 (dual)<\/td>\n<\/tr>\n
Supply Voltage Range<\/td>\n2V to 36V (single) or \u00b11V to \u00b118V (dual)<\/td>\n<\/tr>\n
Tensi\u00f3n de offset de entrada<\/td>\n1mV typical, 5mV max<\/td>\n<\/tr>\n
Corriente de polarizaci\u00f3n de entrada<\/td>\n25nA typical<\/td>\n<\/tr>\n
Input Common-Mode Range<\/td>\n0V to VCC-1.5V<\/td>\n<\/tr>\n
Output Type<\/td>\nOpen-collector (requires pull-up resistor)<\/td>\n<\/tr>\n
Output Sink Current<\/td>\n16mA typical<\/td>\n<\/tr>\n
Response Time<\/td>\n1.3\u00b5s typical (5mV overdrive)<\/td>\n<\/tr>\n
Supply Current<\/td>\n0.4mA typical (both comparators)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n0\u00b0C to +70\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nSOIC-8 (4.9 x 3.91mm)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Dual independent comparators in single 8-pin package<\/li>\n
  • Open-collector outputs for wire-OR and level shifting<\/li>\n
  • Wide supply range: 2V to 36V single supply<\/li>\n
  • Low input offset voltage: 1mV typical<\/li>\n
  • Input common-mode range includes ground<\/li>\n
  • 1.3\u00b5s response time at 5mV overdrive<\/li>\n
  • Low 0.4mA total supply current<\/li>\n
  • Output compatible with TTL, MOS, and CMOS<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Voltage threshold detection<\/li>\n
    • Zero-crossing detection<\/li>\n
    • Window comparators<\/li>\n
    • Oscillator and timing circuits<\/li>\n
    • Level shifting and interface<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM393DR is a dual differential comparator from Texas Instruments with open-collector outputs, low offset voltage, and single\/dual supply operation in an SOIC-8 package. Key Specifications Number of Comparators 2 (dual) Supply Voltage Range 2V to 36V (single) or \u00b11V to \u00b118V (dual) Input Offset Voltage 1mV typical, 5mV max Input Bias Current […]<\/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":[13],"tags":[],"chip_brand":[138],"class_list":["post-7895","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Dual comparator, open-collector, 2-36V, 1.3\u00b5s, SOIC-8","date_code":"","package_case":"SOIC-8 (4.9 x 3.91 x 1.58mm, 1.27mm pitch)","in_stock":22000,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm393-n.pdf","price":"$0.28 @ 1ku","product_introduction":"The LM393DR from Texas Instruments contains two independent voltage comparators in an 8-pin SOIC package. Each comparator compares the voltage at its non-inverting input (+) against the voltage at its inverting input (-) and drives an open-collector output LOW when the + input is below the - input, and HIGH (floating\/open) when the + input exceeds the - input. The open-collector output requires an external pull-up resistor and can be wire-ORed with other LM393 outputs or connected to a different voltage rail for level shifting. The device operates from a single 2V to 36V supply or dual \u00b11V to \u00b118V supplies, with only 0.4mA total quiescent current. The input common-mode range extends from ground to VCC-1.5V, allowing ground-referenced sensing. The 1.3\u00b5s response time at 5mV overdrive is suitable for moderate-speed applications. The DR suffix denotes the SOIC-8 package with tape-and-reel packaging.","working_principle":"Each of the two comparators in the LM393DR continuously monitors the voltage difference between its non-inverting (+) and inverting (-) inputs. When V+ > V-, the output transistor is OFF and the open-collector output floats (pulled HIGH by the external pull-up resistor). When V+ < V-, the output transistor turns ON and sinks current to ground, pulling the output LOW. The open-collector configuration provides several advantages: (1) multiple outputs can be wire-ORed by connecting them together with a single pull-up resistor, creating a logical AND function (any comparator pulling LOW pulls the entire line LOW); (2) the pull-up voltage can be different from the comparator supply voltage, enabling level shifting from a 5V comparator output to a 3.3V or 12V logic input; (3) the output can directly drive relay coils or LEDs with the pull-up connected to the load supply. The 1mV typical input offset voltage means the switching threshold is accurate to within 1mV of the actual comparison point. The 1.3\u00b5s response time at 5mV overdrive indicates the time from the input crossing the threshold to the output reaching 50% of its final value.","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>1IN-<\/td>Input<\/td>Comparator 1 inverting input<\/td><\/tr>\n
      3<\/td>1IN+<\/td>Input<\/td>Comparator 1 non-inverting input<\/td><\/tr>\n
      4<\/td>GND<\/td>Power<\/td>Ground \/ negative supply<\/td><\/tr>\n
      5<\/td>2IN+<\/td>Input<\/td>Comparator 2 non-inverting input<\/td><\/tr>\n
      6<\/td>2IN-<\/td>Input<\/td>Comparator 2 inverting input<\/td><\/tr>\n
      7<\/td>2OUT<\/td>Output<\/td>Comparator 2 output (open-collector)<\/td><\/tr>\n
      8<\/td>VCC<\/td>Power<\/td>Positive supply (2V to 36V)<\/td><\/tr>\n<\/table>\n

      LM393DR uses the SOIC-8 (D) surface-mount package with standard dual comparator pinout: Pin 1 = Output A (open-collector), Pin 2 = Inverting Input A (-), Pin 3 = Non-inverting Input A (+), Pin 4 = GND, Pin 5 = Non-inverting Input B (+), Pin 6 = Inverting Input B (-), Pin 7 = Output B (open-collector), Pin 8 = VCC. The DR suffix denotes SOIC-8 tape-and-reel from TI. Open-collector outputs require external pull-up resistors. The SOIC-8 pinout is identical to the PDIP-8 version (LM393N), enabling seamless PCB layout migration between through-hole and surface-mount. Operating voltage range is 2V-36V single supply or \u00b11V-\u00b118V dual supply.<\/p>","application_scenarios":"

        \n
      • Threshold Detect:<\/strong> Compare sensor voltage against a reference; open-collector directly drives MCU interrupt or LED indicator<\/li>\n
      • Window Comparator:<\/strong> Two comparators + 3 resistors create an in-range\/out-of-range detector for voltage monitoring<\/li>\n
      • Zero-Cross:<\/strong> Compare AC signal against ground reference for synchronization in TRIAC dimmer circuits<\/li>\n
      • Level Shift:<\/strong> Pull-up to different voltage (e.g., 3.3V) while comparator runs on 12V supply<\/li>\n
      • Wire-OR:<\/strong> Multiple comparators share one pull-up; any threshold violation pulls the line LOW for fault aggregation<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th>Package<\/th>Specs<\/th><\/tr>\n
        LM393AN<\/td>TI<\/td>Improved version with lower 2mV max offset voltage for precision threshold detection circuits<\/td>DIP-8<\/td>1.3\u00b5s\/2-36V<\/td><\/tr>\n
        LM2903N<\/td>TI<\/td>Automotive-grade -40 to +125C version for under-hood and industrial comparator applications<\/td>DIP-8<\/td>1.3\u00b5s\/-40-125C<\/td><\/tr>\n
        LM339N<\/td>TI<\/td>Quad comparator version (4 channels) in DIP-14 for multi-channel threshold detection<\/td>DIP-14<\/td>1.3\u00b5s\/4-ch<\/td><\/tr>\n
        TLV3202AIDR<\/td>TI<\/td>High-speed 40ns dual comparator with push-pull output for fast signal detection<\/td>SOIC-8<\/td>40ns\/2.7-5.5V<\/td><\/tr>\n
        LTC6702IS8<\/td>ADI<\/td>Micro-power 18-bit configurable comparator with 200nA supply for battery monitoring<\/td>SOIC-8<\/td>18-bit\/200nA<\/td><\/tr>\n<\/table>\n

        LM393 is the industry-standard dual voltage comparator with open-drain output and 2-36V supply range. The 1.3\u00b5s response time suits general-purpose threshold detection. LM393AN offers lower offset voltage. LM339 provides 4 comparators in DIP-14. For high-speed applications, TLV3202 offers 40ns response with push-pull output at 2.7-5.5V supply.<\/p>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/7895","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/comments?post=7895"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/7895\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=7895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=7895"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=7895"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=7895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}