The TSC7126CPL is a low-power, 3 1/2 digit, single-chip CMOS analog-to-digital converter (ADC) designed for driving liquid crystal displays (LCDs) directly. It incorporates all the necessary active devices for a complete measurement system, minimizing external component count and simplifying design. This converter is particularly well-suited for applications requiring high input impedance, low power consumption, and direct LCD drive capability.

Applications

• Digital Panel Meters
• Battery-Powered Instrumentation
• Remote Data Logging
• Portable Multimeters
• Thermometers

Features

• Direct LCD Drive: Eliminates the need for external LCD drivers.
• Low Power Consumption: Ideal for battery-powered applications.
• High Input Impedance: Minimizes loading of the input signal.
• On-Chip Reference: Provides a stable voltage reference for accurate measurements.
• Zero-Scale and Full-Scale Adjustments: Allow for calibration and improved accuracy.
• 3 1/2 Digit Display: Offers a clear and easy-to-read display.

Benefits

• Reduced System Cost: Integrated LCD drive and on-chip reference minimize external component count.
• Simplified Design: Integration simplifies circuit design and reduces board space requirements.
• Extended Battery Life: Low power consumption maximizes operating time in portable devices.
• Improved Accuracy: On-chip reference and calibration features ensure accurate measurements.
• Clear Display: Direct LCD drive provides a clear and easy-to-read digital display.

Additional Details

The TSC7126CPL operates from a single power supply. It provides overrange and underrange indication for reliable data acquisition. The device is typically used with an external capacitor for integration. It's commonly found in handheld instruments and panel meters where display readability and low power are critical factors. The CMOS technology ensures high noise immunity and stable performance over a wide temperature range.