Overview
GC7137A is a high performance, low-cost three and a half A / D converter circuit. It contains seven sections of the translation Code reader, scan display drivers, reference sources and clock system that can directly drive LED display characters.
GC7137A be a good combination with high precision, versatility and low cost applications together, it has less than 10μV The auto zero function, zero drift of less than 1μV / ℃, lower than the input current 10pA, the polarity switching error is less than A word. GC7137 integrated differential input and differential reference source in a variety of systems are very easy to use. It can be widely For a variety of single-chip measurement unit and display meter.

FEATUREs
◆ When the zero level input is guaranteed,
   the reading of each range is zero.
◆ Built-in frequency calibrated clock oscillator
◆ True differential input and differential reference source
◆ Single power supply 5V or external positive
   and negative dual power supply
◆ Very low noise (less than 15μVp-p)
◆ Display scan drive without external components
◆ Low power consumption (typically less than 10mW)
◆ Built-in precision bandgap reference