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STMICROELECTRONICS LM339ADT Voltage Comparator

The LM339 family consists of four independent, precision-operational comparators designed for single or split power supply operation, ranging from +2 to +36 V or +1 to +18 V. They feature low supply current of 1.1 mA, low input bias current of 25 nA, and a low input offset voltage of 1 mV. Designed for high accuracy, these comparators support wide input voltage ranges that include ground, making them suitable for various precision applications including threshold detection, oscillators, and signal comparison. Robust and versatile, they are compatible with TTL, DTL, ECL, MOS, and CMOS outputs, ensuring broad usability.

Authorized Distributors
Source:Newark
Part No:LM339ADT
Stock:657500
Inv Date:06-11-2026
Price: Unit price: $0.132
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Source:DigiKey
Part No:LM339ADT
Stock:269
Inv Date:06-11-2026
Price: Unit price: $0.36
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Part No:LM339ADT
Stock:740
Inv Date:06-12-2026
Price: Unit price: $0.36
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Part No:LM339ADT
Stock:10000
Inv Date:06-11-2026
Price: Unit price: $0.127
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Part No:LM339ADT
Stock:3500
Inv Date:06-12-2026
Price: N/A
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STMICROELECTRONICS LM339ADT Voltage Comparator Specifications:

  • Supply Voltage Range: +2 to +36 V or +1 to +18 V
  • Supply Current: 1.1 mA
  • Input Bias Current: 25 nA
  • Input Offset Voltage: ±1 mV
  • Input Common-Mode Voltage Range includes ground
  • Output Compatibility: TTL, DTL, ECL, MOS, CMOS
  • Differential Input Voltage Range: equal to supply voltage
  • Output Saturation Voltage: 250 mV (typ) at 4 mA sink
  • Temperature Range: -55°C to +125°C depending on variants
  • Package options: Plastic Micropackage, TSSOP14, QFN16 3x3 mm
  • Operating temperature: from -55°C to +125°C based on model
  • Maximum Reverse Voltage for Input: ±36 V

Buy the ST Series LM339: Precision Quad Voltage Comparator Part 339

Enhance your electronic projects with the ST Microelectronics LM339AD voltage comparator. Designed for precision, reliability, and low power usage, it offers four independent comparators suitable for threshold detection, oscillators, or signal comparison. Its wide input voltage range includes ground, making it ideal for various industrial and consumer applications. Available in compact packages like TSSOP14 and QFN16, this device ensures easy integration into your designs. Order online now for fast delivery and get dependable performance in your essential electronic components.

Get ST Microelectronics LM339AD precision quad voltage comparator today—built for accuracy, low power consumption, and reliable performance in your circuits.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS LM339ADT?

You can click on the BUY or RFQ button to purchase LM339ADT from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part LM339ADT?

You can download the LM339ADT datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of LM339ADT?

STMICROELECTRONICS

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