max138Part #: MAX138. Download. File Size: 472Kbytes. Page: 8 Pages. Description: 3Dit AD Converters with Bandgap Refrence and Charge-Pump Voltage Converter. Manufacturer:The circuit confuration of the MAX138MAX139 results in a superior 120dB rejection of common-mode voltages applied to IN HI and IN CO. The MAX138MAX139 con- furation does