LM339AN PDIP14 Quad Precision Differential Voltage Comparator Single Supply 2V~36V Open Collector Output TI, 100% Genuine Tube Stock, Ample Inventory, One-stop full BOM supply, all parts shipped together

Quick Overview of Key Specifications

1. Basic Info: Original TI LM339AN, 14-pin plastic through-hole PDIP-14 package, four independent precision differential voltage comparators supplied in plastic tubes. It is upgraded A-version vs standard LM339N with max 2mV input offset voltage and lower temperature drift, operating temperature -25℃ ~ +85℃, universal threshold detection analog IC for industrial control, home appliances and university lab kits.
2. Power Supply Characteristics Works with single DC supply 2V~36V or dual split rails ±1V~±18V. Input common-mode range includes ground potential under single supply, enabling near-zero low signal sampling without negative bias circuits, compatible with 5V/12V/24V system power rails.
3. Upgraded Precision Electrical Performance Max input offset voltage only 2mV (typical 1.4mV) for minimal error on weak temperature, weight and current signals; typical 25nA input bias current matches high-impedance thermistor & load cell sensors; fast 1.3μs response time for zero-cross and pulse detection; ultra-low 1.1mA total quiescent current for battery-powered low-power hardware.
4. Four Fully Isolated Independent Channels Four separate differential comparator cores with individual two inputs and open-collector output per channel. One chip handles four threshold judgment tasks simultaneously, replacing four single-channel comparators to reduce component count and simplify through-hole PCB layout.
5. Open-Collector Output Feature Open-drain output requires external pull-up resistor to freely match 3.3V/5V/12V logic levels; multiple outputs can be wired-AND together for multi-condition combined alarm functions; typical saturation voltage only 250mV @ 4mA to drive LEDs, optocouplers and small relays cleanlyTI E2E sup....
6. Typical Application Fields Over/under voltage power protection, temperature threshold switches, weighing instrument signal comparison, induction cooker detection circuits, window comparators, simple analog-to-digital converters, square-wave pulse generators, student laboratory experiment boards and battery level monitoring modules.
7. Model Selection Advantages ① Precision A-grade low offset delivers higher detection accuracy than standard LM339N, ideal for load cell weighing and precision temperature control sensitive to zero drift; ② Wide single supply 2~36V covers all industrial and household equipment without complex dual-rail power design; ③ Through-hole PDIP package is easy for manual soldering, field repair replacement and teaching labs, with superior vibration resistance vs SMD chips; ④ Flexible open-collector output compatible with TTL/CMOS/MOS logic families, abundant reference design documents and ultra-low mass production cost.

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Tags: 100% genuine factory industrial threshold detection analog spare chip, LM339AN four-channel independent compare master IC, sufficient tube stock IC, one-stop full BOM supply service, standard 14-pin PDIP through-hole package, weighing & overvoltage protection core comparison chip