LP339D Texas Instruments comparators (SOIC-14) In Stock
LP339D is a quad voltage comparator from Texas Instruments with open-collector outputs, operating on 2V–36V single or dual supply, in SOIC-14. From $0.41/unit, in-stock, ships globally, MOQ 1.
- Manufacturer
- Texas Instruments
- Package
- SOIC-14
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- LP339D Datasheet PDF
- Category
- comparators
- Price
- From $0.1932(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LP339D?
- Quad independent comparators in a single SOIC-14 package
- Wide supply range: 2V–36V single supply or ±1V–±18V dual supply
- Open-collector outputs for flexible logic interfacing and wired-OR connections
- Ultra-low supply current: 0.8mA typical across all 4 comparators
- Input common-mode range includes ground — ideal for single-supply designs
- Industrial temperature grade: –40°C to +85°C
- RoHS compliant, Pb-free
What is LP339D used for?
LP339D is widely used in battery-powered equipment, automotive body electronics, and industrial control systems where multiple threshold detection or window comparator circuits are required. Its open-collector outputs simplify level shifting and bus sharing in mixed-voltage designs.
What are the specifications of LP339D?
| Supply Voltage | 2 to 36V |
| Number of Comparators | 4 |
| Supply Current (typical) | 0.8mA |
| Input Offset Voltage | 2mV |
| Output Type | Open Collector |
| Operating Temperature | -40 to +85°C |
| Package | SOIC-14 |
| Pin Count | 14 |
| Package | SOIC-14 |
Compliance & Regulatory
| RoHS Status | Compliant |
Where can I find the LP339D datasheet?
LP339D Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LP339D?
Compatible alternatives and drop-in replacements for LP339D:
Pin-compatible quad comparator, same SOIC-14 package; higher 2mA supply current but otherwise identical function
Pin-compatible quad comparator with extended –40°C to 125°C temperature range, suitable for harsh industrial environments
Pin-compatible quad comparator in SOIC-14; ON Semiconductor second source with wide 2V–36V supply range
Frequently Asked Questions
How does LP339D compare to LM339D?
LP339D is the low-power version of the classic LM339 quad comparator. It draws only 0.8mA total supply current across all four comparators (vs ~2mA for LM339), making it better suited for battery-powered and energy-sensitive applications. Both share the same pin-compatible SOIC-14 footprint and open-collector outputs, so LP339D is a drop-in replacement for LM339D in most designs.
Can LP339D operate from a single 3.3V or 5V supply?
Yes. LP339D supports single-supply operation from 2V to 36V, so it works with 3.3V and 5V rails. Its input common-mode range extends down to ground (0V), allowing it to compare signals that swing near the negative rail — a key advantage in single-supply systems where the LM339 family has traditionally excelled.
What output drive capability do the LP339D comparators have?
Each comparator output is an open-collector NPN transistor capable of sinking up to 16mA when low (V_OL < 400mV at 4mA). Because the output is open-collector, you must add an external pull-up resistor to your logic supply rail. This topology also allows multiple comparator outputs to be wire-OR'd together on a single bus.
Which packages is LP339D available in besides SOIC-14?
Texas Instruments offers the LP339 family in several packages: LP339D (SOIC-14, 3.9mm body), LP339DR (SOIC-14 tape-and-reel for automated assembly), LP339PW (TSSOP-14 for space-constrained designs), and LP339N (PDIP-14 for through-hole prototyping). All variants share identical electrical characteristics.
What are the closest pin-compatible alternatives to LP339D?
The most common pin-compatible alternatives are LM339D (standard-power version by TI), LM2901D (wider –40°C to 125°C industrial range by TI/ON Semi), and MC3302D (Motorola/ON Semi equivalent). For lower voltage operation (1.8V logic), consider the TLV7031 or ADCMP600 series, though those require footprint verification.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4140 | $0.41 |
| 59+ | $0.2760 | $16.28 |
| 218+ | $0.1932 | $42.12 |
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