TC7106/A/TC7107/A is a 3-1/2 digit direct display drive analog-to-digital converter with features such as internal reference with low temperature drift, driving LCD or LED displays, zero reading with zero input, low noise for stable display, auto-zero cycle, true polarity indication, convenient 9V battery operation, high impedance CMOS differential inputs, simplified ratiometric measurements with differential reference inputs, and low power operation.