The Renesas Electronics Intersil ICL7106 series are high performance, low power, 31 /2 digit A/D converters. Included are seven segment decoders, display drivers, a reference, and a clock. The ICL7106 is designed to interface with a liquid crystal display (LCD) and includes a multiplexed backplane drive. LCD ICL7106, LED lCL7107
Low noise - less than 15μVP-P
On chip clock and reference