TC7117
FEATURES s Low Temperature Drift Internal Reference TC7116/TC7117 80 ppm/°C Typ TC7116A/TC7117A 20 ppm/°C Typ s Display Hold Function s Directly Drives LCD or LED Display s Guaranteed Zero Reading With Zero Input s Low Noise for Stable Display 2V or 200 m V Full-Scale Range (FSR) s Auto-Zero Cycle Eliminates Need for Zero Adjustment Potentiometer s True Polarity Indication for Precision Null Applications s Convenient 9V Battery Operation (TC7116/TC7116A) s High Impedance CMOS Differential Inputs .... 1012Ω s Low Power Operation 10 m W
GENERAL DESCRIPTION
The TC7116A/TC7117A are 3-1/2 digit CMOS analogto-digital converters (ADCs) containing all the active ponents 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)...
