TC7106CLW

ADCs/DACs - Special Purpose Overview

The TC7106CLW is a 3-1/2 digit dual-slope analog-to-digital converter manufactured by Microchip Technology in a 44-pin PLCC package. It features an internal reference with a typical temperature drift of 80 ppm/°C and directly drives LCD displays. The device operates on a single 5V supply, consuming approximately 10 mW. Key electrical characteristics include high-impedance CMOS differential inputs with 10^12 Ω impedance, 1 µV peak-to-peak noise, and an auto-zero cycle that eliminates the need for external zero adjustment.

ADCs/DACs - Special Purpose Feature Summary

• Directly drives LCD displays without external drivers
• Internal precision reference with 80 ppm/°C typical temperature drift
• Auto-zero cycle ensures zero reading with zero input
• High-impedance differential inputs (10^12 Ω) with low leakage current

ADCs/DACs - Special Purpose Applications

• Thermometry
• Bridge readouts including strain gauges and load cells
• Digital meters for voltage, current, ohms, power, and pH
• Portable instrumentation powered by 9V batteries

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'CLW' corresponds to the 44-pin PLCC package and commercial temperature range (0°C to +70°C). Confirm RoHS compliance status through official Microchip documentation or authorized distributors before procurement.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring direct LCD drive capability and low power consumption. Ensure the application utilizes a 5V supply. For improved temperature stability, consider the TC7106A variant which offers a lower drift reference of 20 ppm/°C.

ADCs/DACs - Special Purpose Part Context

The TC7106CLW belongs to the TC7106/A family of 3-1/2 digit ADCs. It serves as a drop-in replacement for legacy TC7106 systems, allowing upgrades to the A-series performance without changing external passive component values.

ADCs/DACs - Special Purpose Replacement Considerations

The TC7106A is a compatible upgrade within the same family offering improved reference drift specifications. Other variants like TC7107 drive LED displays instead of LCD.