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STMICROELECTRONICS LM139ADT Voltage Comparator

The LM139 family comprises low-power quad voltage comparators designed for precision analog signal processing in industrial applications. Operating over a wide voltage range from +2 to +36 V, these comparators feature low supply current of 1.1 mA and low input bias currents of 25 nA, ensuring high accuracy. They include ground-referenced input voltage ranges, output compatibility with TTL, DTL, ECL, MOS, and CMOS logic, and are suitable for various precision comparator circuits, level detection, and waveform shaping in industrial and electronic testing environments.

Authorized Distributors
Source:Newark
Part No:LM139ADT
Stock:5000
Inv Date:06-11-2026
Price: Unit price: $0.466
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Source:DigiKey
Part No:LM139ADT
Stock:4303
Inv Date:06-11-2026
Price: Unit price: $1.37
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Part No:LM139ADT
Stock:4687
Inv Date:06-12-2026
Price: Unit price: $1.39
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Part No:LM139ADT
Stock:5000
Inv Date:06-11-2026
Price: Unit price: $0.545
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Part No:LM139ADT
Stock:718
Inv Date:06-12-2026
Price: N/A
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STMICROELECTRONICS LM139ADT Voltage Comparator Specifications:

  • Supply Voltage Range: +2 to +36 V or +1 V to +18 V
  • Input Bias Current: 25 nA typical
  • Input Offset Voltage: 1 mV typical
  • Output Saturation Voltage: 250 mV at 4 mA sink current
  • Operating Temperature Range: -55°C to +125°C (varies by version)
  • Input Common Mode Voltage Range Includes Ground
  • Low Power Consumption: 1.1 mA supply current
  • Output Compatibility: TTL, DTL, ECL, MOS, CMOS
  • Package Options: SO14, TSSOP14, QFN16 3x3 mm
  • Maximum Differential Input Voltage: Equal to supply voltage

Buy the STMicroelectronics LM139 – Reliable Comparator for Industrial Applications

Experience precise signal comparison with the low-power, high-reliability voltage comparator designed for industrial automation, instrumentation, and electronics testing. The LM139 offers a wide voltage range, low input bias currents, and compatibility with various digital logic levels, ensuring consistent performance across diverse applications. Its multiple package options and robust construction make it ideal for high-precision applications requiring dependable and energy-efficient operation. Purchase the LM139 online today to enhance your industrial electronics projects with proven stability and accuracy.

Get STMicroelectronics LM139 today—built for precision and long-lasting durability in industrial environments.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS LM139ADT?

You can click on the BUY or RFQ button to purchase LM139ADT from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part LM139ADT?

You can download the LM139ADT datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of LM139ADT?

STMICROELECTRONICS

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