The Intersil ICL7106 and ICL7107 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; the ICL7107 will directly drive an instrument size light-emitting diode (LED) display.
The ICL7107 brings together a combination of high accuracy, versatility, and true economy. It features auto-zero to less than 10μV, zero drift of less than 1μV/oC, the input bias current of 10pA (Max), and rollover error of less than one count. True differential inputs and references are useful in all systems. It gives the designer an uncommon advantage when measuring load cells, strain gauges, and other bridge-type transducers. Finally, the true economy of a single power supply operation (ICL7106), enables a high-performance panel meter to be built with the addition of only 10 passive components and a display.