The ICL7126CPL is a low-power 3 1/2 digit A/D converter integrated circuit manufactured by Renesas Electronics. It's specifically designed for driving LCD displays, making it ideal for battery-powered applications. This device integrates all the necessary components for a complete A/D conversion system, including an on-chip clock, reference, and LCD display drivers. The ICL7126CPL is commonly used in digital multimeters, thermometers, and other portable instruments requiring low power consumption and reliable LCD display driving.

Applications

• Digital Multimeters: Used in portable multimeters to convert analog voltage and current measurements to a digital display on an LCD screen.
• Digital Thermometers: Employed in battery-powered digital thermometers to convert temperature sensor output to a digital reading on an LCD screen.
• Digital Panel Meters: Utilized in low-power panel meters to display analog signals in digital form on an LCD screen.
• Battery-Powered Instruments: Integrated into various battery-powered instruments requiring accurate A/D conversion and LCD display driving.
• Portable Scales: Used in portable digital scales to convert weight sensor output to a digital weight reading on an LCD screen.

Features

• 3 1/2 Digit A/D Converter: Provides high-resolution analog-to-digital conversion for accurate measurements.
• Direct LCD Display Drive: Directly drives LCD displays, simplifying the display interface and reducing component count.
• Low Power Consumption: Minimizes power consumption, making it ideal for battery-powered applications.
• On-Chip Clock and Reference: Includes an internal clock and reference voltage, reducing the need for external components.
• High Input Impedance: Offers high input impedance, minimizing loading effects on the analog input signal.
• Zero Drift: Low zero drift ensures accurate readings over temperature variations.
• Single Supply Operation: Operates from a single power supply, simplifying power supply requirements.

Benefits

• Extended Battery Life: Low power consumption extends battery life in portable applications.
• High Accuracy: Provides accurate and reliable analog-to-digital conversion.
• Simplified Interface: Direct LCD display drive simplifies the display interface and reduces component count.
• Stable Performance: Low zero drift ensures stable performance over temperature variations.
• Cost-Effective: Offers a cost-effective solution for LCD display applications in portable devices.

The ICL7126CPL is available in a plastic DIP package. Its low power consumption, comprehensive features, and LCD display driving capability make it a popular choice for a wide range of portable instruments.