LM139J/883

Comparator Quad R-R O/P ±15V/30V 14-Pin CDIP Tube
4,510 有效庫存

LM139J/883

有效庫存4,510

Comparator Quad R-R O/P ±15V/30V 14-Pin CDIP Tube

  • 製造商零件號 # : LM139J/883

  • 包裝/封裝: CDIP-14

  • 製造商: Texas Instruments

  • 產品分類 : Comparators

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LM139J/883 數據表
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詳細說明

The LM139J/883 stands out as a reliable solution for a wide range of electronic applications, thanks to its precision voltage comparison capabilities and low offset voltage specification. Whether used in time delay generators, VCOs, or MOS clock timers, this product excels in delivering accurate results across various operating conditions. Its seamless integration with different logic families makes it a versatile choice for designers seeking a dependable voltage comparator for their projects

主要特徵

  • High isolation (100 dB)
  • Wide bandwidth (500 kHz)
  • Low noise current source
  • Digital output for easy readout
  • Ruggedized for extreme temperatures
  • MIL-STD-883E qualified and tested

規格

以下是所選零件的基本參數，涉及零件的特性及其所屬類別。

Number of channels 4 Output type Open-collector, Open-drain
Propagation delay time (µs) 0.7 Vs (max) (V) 36
Vs (min) (V) 2 Vos (offset voltage at 25°C) (max) (mV) 2
Iq per channel (typ) (mA) 0.2 Input bias current (±) (max) (nA) 100
Rail-to-rail Out Rating Military
Operating temperature range (°C) -55 to 125 VICR (max) (V) 34
VICR (min) (V) 0

常見問題解答

What is LM139J/883?

The LM139J/883 is a quad, high-precision voltage comparator designed by Texas Instruments. It is part of the military-grade 883 series, built to withstand harsh environmental conditions and stringent reliability requirements. The device is suitable for critical applications in aerospace, defense, and other high-reliability industries.

How Does LM139J/883 Work?

The LM139J/883 works as a voltage comparator, comparing the difference between two input voltage signals and producing a high or low output based on the comparison result. Its high precision and low offset voltage make it suitable for applications requiring accurate voltage level detection, such as overvoltage protection, window comparators, and voltage level detection in industrial applications.

How Many Pins does LM139J/883 have and What are the Functions of the Pinout Configuration?

The LM139J/883 is housed in a 14-pin ceramic DIP (Dual Inline Package) package. The pinout configuration includes:

  • VCC+: Positive power supply pin.
  • VCC-: Negative power supply pin.
  • IN+: Non-inverting input pin for one of the comparators.
  • IN-: Inverting input pin for one of the comparators.
  • OUT: Output pin for one of the comparators.
  • IN1+/IN1-/OUT1, IN2+/IN2-/OUT2, IN3+/IN3-/OUT3, IN4+/IN4-/OUT4: Input and output pins for the other three comparators in the quad package.

What are the Pros and Cons of LM139J/883?

Pros:

  • Military-Grade Reliability: Built to comply with stringent military specifications for reliability and environmental robustness.
  • High Precision: Provides accurate voltage comparison with low offset voltage, suitable for critical applications.
  • Quad Comparator: Contains four individual comparators in a single package, offering space and cost efficiency for multi-channel applications.
  • Wide Temperature Range: Operates reliably across a wide temperature range, making it suitable for harsh environments.

Cons:

  • Cost: Military-grade components like the LM139J/883 may have higher procurement costs compared to standard commercial-grade devices.
  • Size and Weight: The ceramic DIP package may be larger and heavier than modern surface-mount packages.
  • Availability: Limited availability and longer lead times for military-grade components compared to commercial-off-the-shelf (COTS) components.

Are There Any Equivalents/Alternatives to LM139J/883 for Recommendation?

Equivalents to the LM139J/883 include the LM319 from Texas Instruments and the LT1016 from Analog Devices. Alternatives for high-reliability applications include the RHRP3060 from Fairchild Semiconductor and the MAX921 from Maxim Integrated.

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