TC7107CKW713

ADCs/DACs - Special Purpose Overview

The TC7107CKW713 is a 3-1/2 digit analog-to-digital converter (ADC) manufactured by Microchip Technology. It features an internal precision reference with a maximum temperature coefficient of 20 ppm/°C, offering improved stability over standard variants. The device directly drives common anode LED displays with an 8 mA segment sinking current capability. Key electrical specifications include a typical supply current of 1.8 mA, a peak-to-peak noise performance of 15 µV, and high-impedance differential inputs with 1 pA leakage current. It operates within a commercial temperature range of 0°C to +70°C.

ADCs/DACs - Special Purpose Feature Summary

• Directly drives common anode LED displays with 8 mA per segment sink current.
• Internal precision voltage reference with low temperature drift (20 ppm/°C typical).
• Dual-slope integrating architecture provides inherent noise immunity and auto-zero functionality.
• High-impedance CMOS differential inputs with 10^12 Ω impedance and 1 pA leakage.

ADCs/DACs - Special Purpose Applications

• Thermometry and temperature sensing instruments.
• Bridge readouts for strain gauges and load cells.
• Digital meters for voltage, current, ohms, and power measurements.
• Portable instrumentation powered by 9V batteries.

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific package type associated with the suffix 'KW' against official documentation, as it may differ from standard PDIP or PLCC options. Confirm the operating temperature grade ('C' for commercial vs. 'I' for industrial) required for the application environment. Ensure that the ordering suffix does not imply functional changes unless explicitly stated in the manufacturer's datasheet.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring direct LED display driving without external driver ICs. Ensure the design accommodates the 8 mA segment current requirement for the chosen LED display. Verify that the input signal range aligns with the 200 mV or 2 V full-scale options supported by the integrating resistor selection. Consider the 44-pin MQFP package constraints for PCB layout and thermal dissipation.

ADCs/DACs - Special Purpose Part Context

This part belongs to the TC7106/A and TC7107/A family of 3-1/2 digit ADCs. The TC7107 variant specifically targets LED displays, whereas the TC7106 targets LCDs. The 'A' suffix denotes the upgraded version with a lower temperature coefficient reference compared to the original TC7107. These devices serve as drop-in replacements for legacy systems while allowing upgrades in precision without changing external passive component values.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.