LM3302NE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
Texas Instruments LM3302NE4 is a quad voltage comparator with open-collector outputs operating from ±14 V or single 28 V supply in a 14-pin DIP package. Features low 0.5 µA input bias current and 40 mV maximum input offset voltage for threshold detection and window comparator applications. Available in tube packaging for through-hole PCB assembly in industrial and commercial designs.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- LM3302NE4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2800(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 LM3302NE4?
- Quad independent comparators in a single 14-pin DIP package, enabling 4 simultaneous threshold comparisons
- Open-collector outputs allowing wired-AND logic and direct interface to TTL or CMOS logic levels
- Wide supply range of ±14 V or single 28 V covering both dual-supply op-amp and single-supply logic systems
- Low 0.5 µA maximum input bias current at 25°C for high-impedance voltage divider threshold networks
- TTL and CMOS logic compatible output, directly driving digital inputs without pull-up resistors from an external supply
What is LM3302NE4 used for?
The LM3302NE4 is widely used in window comparators, zero-crossing detectors, and multi-level voltage threshold alarm circuits in industrial power supply monitoring and battery management systems. Its quad open-collector outputs allow flexible wired-AND combinations for simultaneous monitoring of 4 voltage rails with a single IC, reducing component count in control panels and protection circuits. The wide 28 V single-supply range makes it compatible with both 5 V logic systems and 24 V industrial control buses without additional level translation.
What are the specifications of LM3302NE4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Amplifier Type | COMPARATOR |
| Average Bias Current-Max (IIB) | 1 µA |
| Bias Current-Max (IIB) @25C | 0.5 µA |
| Input Offset Voltage-Max | 40000 µV |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e4 |
| Number of Functions | 4 |
| Output Type | OPEN-COLLECTOR |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | RAIL |
| Qualification Status | Not Qualified |
| Response Time-Nom | 1300ns |
| Screening Level | TS 16949 |
| Supply Current-Max | 3.2mA |
| Supply Voltage Limit-Max | 28V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LM3302NE4 datasheet?
LM3302NE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3302NE4?
Compatible alternatives and drop-in replacements for LM3302NE4:
Comparator, 4 Func, 40000uV Offset-Max, 1300ns Response Time, BIPolar, PDIP14
Frequently Asked Questions
How does the open-collector output of LM3302NE4 enable wired-AND logic for fault detection across multiple comparator channels?
Each of the 4 LM3302NE4 comparators has an open-collector output that pulls low when the inverting input exceeds the non-inverting input. Tying all 4 outputs to a single pull-up resistor of 10 kΩ to 5 V creates a wired-AND node that goes low if any comparator trips, providing a common fault flag from 4 independent voltage threshold monitors without additional logic gates, saving PCB space in battery protection and power rail monitoring applications.
What is the input offset voltage of LM3302NE4 and how does it affect precision threshold detection accuracy?
The LM3302NE4 specifies a maximum input offset voltage of 40 mV (40000 µV), meaning the threshold detection point can vary by up to 40 mV from the ideal setpoint. For a 5 V rail monitored with a resistor divider to a 2.5 V reference, a 40 mV offset translates to roughly 80 mV uncertainty on the monitored voltage. For tighter accuracy below 10 mV, a precision comparator like the LM393B with 2 mV offset would be more appropriate.
Can LM3302NE4 operate from a single 5 V supply in a standard digital system, and what pull-up resistor is recommended?
Yes. The LM3302NE4 operates from a single 5 V supply (within its 28 V maximum), though supply voltage as low as 3 V is typically functional. For 5 V CMOS logic interfaces, a 10 kΩ pull-up resistor to 5 V on each open-collector output sets the high-state output voltage and limits pull-up current to 0.5 mA, well within the output's 50 mA maximum sink current rating. Lower pull-up values down to 1 kΩ are acceptable for faster switching at higher sink current.
For a 4-channel battery cell voltage monitor, what threshold accuracy does LM3302NE4 provide across a 0°C to 70°C temperature range?
The LM3302NE4's input bias current of up to 1 µA maximum over temperature creates a voltage error of 1 mV across a 1 kΩ source impedance threshold divider. Combined with the 40 mV offset voltage over the 0°C to 70°C commercial temperature range, total threshold error is approximately 41 mV worst case at the comparator input. For 4.2 V lithium-ion overvoltage detection, this 41 mV window represents about 1% accuracy, acceptable for cell-level protection circuits where ±2% thresholds are standard.
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Why Buy from FindMyChip
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+ | $0.6000 | $0.60 |
| 41+ | $0.4000 | $16.40 |
| 151+ | $0.2800 | $42.28 |
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