{"product_id":"lm324n-low-power-quad-operational-amplifier-14-pin-dip-package","title":"LM324N (Low Power Quad Operational Amplifier - 14-Pin DIP Package)","description":"\u003cp data-path-to-node=\"5\" id=\"p-rc_dc93f0f029b2a805-592\"\u003eWhen your electronics project requires amplifying weak analog signals, filtering audio frequencies, or reading delicate sensors, the \u003cb data-path-to-node=\"5\" data-index-in-node=\"133\"\u003eLM324\u003c\/b\u003e is the industry-standard silicon you reach for. \u003cspan class=\"citation-670 citation-end-670\"\u003eThis classic 14-pin integrated circuit houses four completely independent, high-gain, frequency-compensated operational amplifiers.\u003csup class=\"superscript\" data-turn-source-index=\"2\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e What made the LM324 a revolutionary component upon its release—and why it remains an absolute staple on every maker’s workbench today—is its ability to operate flawlessly off a \u003cb data-path-to-node=\"5\" data-index-in-node=\"496\"\u003esingle power supply\u003c\/b\u003e. \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eUnlike older op-amps (like the 741) that absolutely require a split power supply (e.g., +12V and -12V) to function correctly, the LM324 is perfectly happy running off the exact same 5V or 3.3V power rail that is powering your Arduino or ESP32. Furthermore, its input common-mode voltage range includes Ground, meaning it can sense signals all the way down to zero volts without clipping. Whether you are conditioning the signal from a tiny microphone, building an active low-pass filter for a subwoofer, or just needing four simple voltage comparators on a single chip, the LM324 is an incredibly robust, low-cost solution.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eKey Features \u0026amp; Functional Advantages:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\" id=\"p-rc_dc93f0f029b2a805-593\"\u003e\u003cspan class=\"citation-669\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-669\"\u003eQuad Amplifier Array:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-669 citation-end-669\"\u003e Packs four independent operational amplifiers into a single 14-pin footprint, saving massive amounts of board space and reducing your Bill of Materials (BOM) cost.\u003csup class=\"superscript\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\" id=\"p-rc_dc93f0f029b2a805-594\"\u003e\u003cspan class=\"citation-668\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-668\"\u003eSingle Supply Operation:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-668 citation-end-668\"\u003e Specifically designed to run from a single positive voltage rail (anywhere from 3V up to 32V), completely eliminating the need for complex, dual-rail power supply designs.\u003csup class=\"superscript\" data-turn-source-index=\"4\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\" id=\"p-rc_dc93f0f029b2a805-595\"\u003e\u003cspan class=\"citation-667\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-667\"\u003eGround-Sensing Inputs:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-667 citation-end-667\"\u003e The input common-mode voltage range includes Ground (0V), allowing it to accurately read low-level sensor signals directly referencing the negative rail.\u003csup class=\"superscript\" data-turn-source-index=\"5\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eLow Power Consumption:\u003c\/b\u003e Engineered to draw very low quiescent current (typically under 1mA for the entire chip), making it an excellent choice for battery-powered, always-on sensor nodes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eBreadboard Native (14-DIP):\u003c\/b\u003e The standard 0.1-inch pin pitch drops flawlessly into any solderless breadboard or standard 14-pin DIP socket for rapid analog prototyping.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003ePerfect For:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\"\u003e\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003eSensor Signal Conditioning:\u003c\/b\u003e The absolute standard for amplifying weak analog voltages from thermistors, photoresistors (LDRs), and piezoelectric sensors before feeding them into a microcontroller's ADC.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\"\u003e\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eActive Audio Filters:\u003c\/b\u003e Highly effective for building custom low-pass, high-pass, and band-pass filters for DIY audio synthesizers and guitar effect pedals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,2,0\" id=\"p-rc_dc93f0f029b2a805-596\"\u003e\u003cspan class=\"citation-666\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"10,2,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-666\"\u003eAnalog Comparators:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-666 citation-end-666\"\u003e While dedicated comparators exist, the LM324 is incredibly popular for acting as a basic voltage comparator in DIY circuits to trigger an event when a sensor crosses a specific threshold.\u003csup class=\"superscript\" data-turn-source-index=\"6\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,3,0\"\u003e\u003cb data-path-to-node=\"10,3,0\" data-index-in-node=\"0\"\u003eDC Gain Blocks:\u003c\/b\u003e Easily configured as an inverting or non-inverting amplifier to boost small control voltages in mechatronic and industrial control systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e\u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"0\"\u003eAmplifier Type:\u003c\/b\u003e General Purpose Operational Amplifier\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e\u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"0\"\u003eNumber of Channels:\u003c\/b\u003e 4 (Quad)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\" id=\"p-rc_dc93f0f029b2a805-597\"\u003e\u003cspan class=\"citation-665\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-665\"\u003eOperating Supply Voltage (Single):\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-665 citation-end-665\"\u003e 3V to 32V DC\u003csup class=\"superscript\" data-turn-source-index=\"7\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\" id=\"p-rc_dc93f0f029b2a805-598\"\u003e\u003cspan class=\"citation-664\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"12,3,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-664\"\u003eOperating Supply Voltage (Dual):\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-664 citation-end-664\"\u003e ±1.5V to ±16V DC\u003csup class=\"superscript\" data-turn-source-index=\"8\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,4,0\"\u003e\u003cb data-path-to-node=\"12,4,0\" data-index-in-node=\"0\"\u003eUnity Gain Bandwidth Product:\u003c\/b\u003e ~1.2 MHz (Typical)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,5,0\"\u003e\u003cb data-path-to-node=\"12,5,0\" data-index-in-node=\"0\"\u003eSlew Rate:\u003c\/b\u003e 0.5 V\/µs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,6,0\"\u003e\u003cb data-path-to-node=\"12,6,0\" data-index-in-node=\"0\"\u003eInput Bias Current:\u003c\/b\u003e 45 nA (Typical)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,7,0\"\u003e\u003cb data-path-to-node=\"12,7,0\" data-index-in-node=\"0\"\u003eSupply Current (Total):\u003c\/b\u003e 0.7 mA to 1.2 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,8,0\" id=\"p-rc_dc93f0f029b2a805-599\"\u003e\u003cspan class=\"citation-663\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"12,8,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-663\"\u003ePackage \/ Case:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-663 citation-end-663\"\u003e 14-DIP (0.300\", 7.62mm width)\u003csup class=\"superscript\" data-turn-source-index=\"9\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,9,0\"\u003e\u003cb data-path-to-node=\"12,9,0\" data-index-in-node=\"0\"\u003eMounting Type:\u003c\/b\u003e Through-Hole (PTH)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K-TECHNICS","offers":[{"title":"Default Title","offer_id":42865544495175,"sku":null,"price":0.0,"currency_code":"KES","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/7637\/2039\/files\/41YrleWmpbL._SX342___53649.1552207214.webp?v=1781079616","url":"https:\/\/www.ktechnics.com\/products\/lm324n-low-power-quad-operational-amplifier-14-pin-dip-package","provider":"K-TECHNICS","version":"1.0","type":"link"}