TC7117

TC7116/A/TC7117/A 3-1/2 Digit Analog-to-Digital Converters with Hold Features: Low Temperature Drift Internal Reference: - TC7116/TC7117 80 ppm/°C, Typ. - TC7116A/TC7117A 20 ppm/°C, Typ. Display Hold Function Directly Drives LCD or LED Display Zero Reading with Zero Input Low Noise for Stable Display: - 2V or 200mV Full Scale Range (FSR) Auto-Zero Cycle Eliminates Need for Zero Adjustment Potentiometer True Polarity Indication for Precision Null Applications Convenient 9V Battery Operation: (TC7116/TC7116A) High-Impedance CMOS Differential Inputs: 1012 Low-Power Operation: 10mW Applications: Thermometry Bridge Readouts: Strain Gauges, Load Cells, Null Detectors Digital Meters: Voltage/Current/Ohms/Power, pH Digital Scales, Process Monitors Portable Instrumentation Device Selection Table Package Code Package Temperature Range CPL IJL CKW CLW 40-Pin PDIP 40-Pin CERDIP 44-Pin PQFP 44-Pin PLCC 0C to +70C -25C to +85C 0C to +70C 0C to +70C General Description: The TC7116A/TC7117A are 3-1/2 digit CMOS Analogto-Digital Converters (ADCs) containing all the active components necessary to construct a 0.05% resolution measurement system. Seven-segment decoders, polarity and digit drivers, voltage reference, and clock circuit are integrated on-chip. The TC7116A drives Liquid Crystal Displays (LCDs) and includes a backplane driver. The TC7117A drives common anode Light Emitting Diode (LED) displays directly with an 8mA drive current per ...