GENERAL DESCRIPTION
●The TC14433 is a low power, high-performance, monolithic CMOS 3-1/2 digit A/D converter. The TC14433 combines both analog and digital circuits on a single IC, thus minimizing the number of external components. This dual slope A/D converter provides automatic polarity and zero correction with the addition of two external resistors and two capacitors. The full-scale voltage range of this ratiometric IC extends from 199.9 millivolts to 1.999 volts. The TC14433 can operate over a wide range of power supply voltages, including batteries and standard 5-volt supplies.
●FEATURES
●■ Accuracy ...................±0.05% of Reading ±1 Count
●■ Two Voltage Ranges .............1.999V and 199.9 mV
●■ Up to 25 Conversions Per Second
●■ ZIN> 1000M Ohms
●■ Single Positive Voltage Reference
●■ Auto-Polarity and Auto-Zero
●■ Overrange and Underrange Signals Available
●■ Operates in Auto-Ranging Circuits
●■ Uses On-Chip System Clock or External Clock
●■ Wide Supply Range .................... e.g., ±4.5V to ±8V
●■ Package Available .................................. 24-Pin DIP
● 24-Pin CerDIP, 28-Pin SOIC and 28-Pin PLCC
●APPLICATIONS
●■ Portable Instruments
●■ Digital Voltmeters
●■ Digital Panel Meters
●■ Digital Scales
●■ Digital Thermometers
●■ Remote A/D Sensing Systems
●■ MPU Systems
●■ See Application Notes 19 and 21
