TC7107CPL

The TC7107CPL is a 3-1/2-digit direct display drive Analog-to-digital Converter (ADC) allows existing TC7107 based systems to be upgraded. Each device has a precision reference with a 20ppm/°C maximum temperature coefficient. This represents a 4 to 7 times improvement over similar 3-1/2-digit converters. Existing TC7107 based systems may be upgraded without changing external passive component values. It drives common anode light emitting diode displays directly with 8mA per segment. A high resolution indicating meter requires only a display, four resistors and four capacitors. It reduces linearity error to less than 1 count. Rollover error - the difference in readings for equal magnitude, but opposite polarity input signals, is below ±1 count. High-impedance differential inputs offer 1pA leakage current and a 10¹²Ω input impedance. The differential reference input allows ratiometric measurements for ohms or bridge transducer measurements.

• Drives LED display directly
• Zero reading with zero input
• Low noise for stable display
• Auto-zero cycle eliminates need for zero adjustment
• True polarity indication
• Differential reference inputs simplify ratiometric measurements

Applications

Sensing & Instrumentation, Metering, Consumer Electronics, Portable Devices