ICL7135CN Display Driver 4.5 Digit 28-PDIP

The ICL7135CN is a high-performance, monolithic integrating A/D converter designed specifically for driving multiplexed seven-segment displays. This display driver is capable of handling 4.5 digits, providing a resolution of ±20,000 counts. Housed in a 28-PDIP (Plastic Dual In-line Package), it's a popular choice for digital panel meters, multimeters, and other instrumentation applications where accurate and stable display readings are essential. The ICL7135CN is known for its excellent linearity, low noise, and ease of use, making it a reliable component for both professional and hobbyist electronics projects. Its design emphasizes simplicity and accuracy in converting analog signals into digital display outputs.

The ICL7135CN operates by integrating an analog input signal over a fixed period, then converting the integrated value into a digital representation. This integration technique effectively averages out noise and provides a stable reading, even in noisy environments. The device includes an internal reference voltage, simplifying the external circuitry required for operation. It also features auto-zero and auto-polarity functions, further enhancing its accuracy and stability. The multiplexed BCD (Binary Coded Decimal) outputs are directly compatible with common seven-segment LED displays, minimizing the need for external decoding logic. The 28-PDIP package allows for easy breadboarding and through-hole mounting.

Key specifications of the ICL7135CN include a resolution of 4.5 digits (±20,000 counts), a linearity of 0.005% of reading ±1 count, and a typical input bias current of 1 pA. It operates from a dual power supply of ±5V, and its multiplexed BCD outputs are compatible with standard TTL/CMOS logic levels. The device also features an over-range indication, alerting the user when the input signal exceeds the full-scale range. The operating temperature range is 0°C to +70°C. The ICL7135CN's internal oscillator can be synchronized to an external clock for improved accuracy and stability. Its low power consumption makes it suitable for battery-powered applications.

The ICL7135CN finds applications in a wide range of instrumentation and measurement devices. It's commonly used in digital panel meters for displaying voltage, current, and resistance. It's also used in multimeters, thermometers, and other precision measurement instruments. Furthermore, the ICL7135CN is found in industrial process control systems, data acquisition systems, and laboratory equipment. Its accuracy and stability make it a preferred choice for engineers seeking a reliable display driver solution. Consider the ICL7135CN for your next project requiring precise analog-to-digital conversion and display.

In summary, the ICL7135CN display driver is a highly reliable and versatile component suitable for a wide range of applications. Its robust design, including auto-zero and auto-polarity functions, ensures dependable performance in demanding environments. With a resolution of 4.5 digits and excellent linearity, it offers the accuracy needed for precision measurement. Whether you're working on digital panel meters, multimeters, or industrial process control systems, the ICL7135CN provides a solid foundation for your display needs. Upgrade your measurement capabilities today with the ICL7135CN and experience seamless integration and reliable performance. Add the ICL7135CN to your cart now and ensure accurate display for your critical applications.