TC7107ACPL Datasheet

LED Display Drivers


The TC7107ACPL digit direct display drive analog-to-digital converters allow existing 7106/ 7107 based systems to be upgraded. Each device has a precision reference with a 20ppm/°C max temperature coefficient. This represents a 4 to 7 times improvement over similar 3-1/2 digit converters. Existing 7106 and 7107 based systems may be upgraded without changing external passive component values. The TC7107A drives common anode light emitting diode (LED) displays directly with 8mA per segment. A low cost, high resolution indicating meter requires only a display, four resistors, and four capacitors.The TC7106A low power drain and 9V battery operation make it suitable for portable applications. TC7107ACPL Features • Internal Reference with Low Temperature Drift TC7106/7: 80ppm/°C Typical TC7106A/7A: 20ppm/°C Typical• Drives LCD (TC7106) or LED (TC7107) Display Directly• Zero Reading with Zero Input• Low Noise for Stable Display• Auto-Zero Cycle Eliminates Need for ZeroAdjustment• True Polarity Indication for Precision Null Applications• Convenient 9V Battery Operation (TC7106A)• High Impedance CMOS Differential Inputs: 1012Ω• Differential Reference Inputs Simplify Ratiometric Measurements• Low Power Operation: 10mW TC7107ACPL Applications • Thermometry• Bridge Readouts: Strain Gauges, Load Cells, NullDetectors• Digital Meters: Voltage/Current/Ohms/Power, pH• Digital Scales, Process Monitors• Portable Instrumentation


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Manufacturer information

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