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4 1/2 Digit, BCD Output, A/D Converter ICL7135 Digital Voltmeter Chip

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دائرة متكاملة IC ICL7135 تسمى digital voltmeter chip وهي عبارة عن محول A/D متجانس عالي الدقة وخاصية تحويل القراءة الى بيانات بصيغة BCD اي يمكن ربطها مع شاشة عرض ارقام لعرض الفولتية او القراءة وخاصية قراءة فرق الفولتية بين نقطتين Differential Input والقراءة تكون بالموجب والسالب. خصائصه تجعله مثاليًا للاستخدام في أنظمة التحكم في الحصول على البيانات والتحكم فيها بواسطة المعالجات الدقيقة. يتميز ICL7135 بدقة تلقائية صفرية تصل الى اقل من 10 مايكروفولت، وانحراف صفري قدره 0.5 فولت لكل درجة مئوية، وانحياز إدخال التيار لايتجاوز 10 بيكو امبير. يستخدم في صناعة اجهزة الفولتميتر الدقيقة او اجهزة قياس الضغط والحرارة والمقاومة والسرعة والوزن والتيار واجهزة قياس سمك المواد وغيرها من التطبيقات.

2,000 د.ع 3,500 د.ع

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4 1/2 Digit, BCD Output, A/D Converter ICL7135 Digital Voltmeter Chip

The Intersil ICL7135 precision A/D converter, with its multiplexed BCD output and digit drivers, combines dual-slope conversion reliability with 1 in 20,000 count accuracy and is ideally suited for the visual display DVM/DPM market. The 2.0000V full scale capability, auto-zero, and auto-polarity are combined with true radiometric operation, almost ideal differential linearity and true differential input. All necessary active devices are contained on a single CMOS lC, with the exception of display drivers, reference, and a clock.
The ICL7135 is a high precision monolithic 41/2-digit A/D converter. … This interfacing capability makes the ICL7135 an ideal device for use in microprocessor-based data acquisition and control systems. The ICL7135 has auto-zero accuracy better than 10µV, zero drift of 0.5µV/°C, input bias current of 10pA max.

Features

  • Accuracy Guaranteed to ±1 Count Over Entire ±20000 Counts (2.0000V Full Scale)
  • Guaranteed Zero Reading for 0V Input
  • 1pA Typical Input Leakage Current
  • True Differential Input
  • True Polarity at Zero Count for Precise Null Detection
  • Single Reference Voltage Required
  • Overrange and Underrange Signals Available for Auto-Range Capability
  • All Outputs TTL Compatible
  • Blinking Outputs Gives Visual Indication of Overrange
  • Six Auxiliary Inputs/Outputs are Available for Interfacing to UARTs, Microprocessors, or Other Circuitry
  • Multiplexed BCD Outputs
  • Pb-Free Plus Anneal Available (RoHS Compliant)

 

This device is used in a wide range of measurement applications involving the manipulation and display of analog data:

  • Pressure
  • Voltage
  • Resistance
  • Temperature
  • Weight
  • Current
  • Speed
  • Material Thickness

Package Includes:
1 x ICL7135 IC

SKU: 769 Categories: ,
  • Accuracy Guaranteed to ±1 Count Over Entire ±20000 Counts (2.0000V Full Scale)
  • Guaranteed Zero Reading for 0V Input
  • 1pA Typical Input Leakage Current
  • True Differential Input
  • True Polarity at Zero Count for Precise Null Detection
  • Single Reference Voltage Required
  • Overrange and Underrange Signals Available for Auto-Range Capability
  • All Outputs TTL Compatible
  • Blinking Outputs Gives Visual Indication of Overrange
  • Six Auxiliary Inputs/Outputs are Available for Interfacing to UARTs, Microprocessors, or Other Circuitry
  • Multiplexed BCD Outputs
  • Pb-Free Plus Anneal Available (RoHS Compliant)

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