ADC1005

ADC1005 10-Bit µP Compatible A/D Converter June 1999 ADC1005 10-Bit µP Compatible A/D Converter General Description The ADC1005 is a CMOS 10-bit successive approximation A/D converter. The 20-pin ADC1005 outputs 10-bit data in a two-byte format for interface with 8-bit microprocessors. The ADC1005 has differential inputs to permit rejection of common-mode signals, allow the analog input range to be offset, and also to permit the conversion of signals not referred to ground. In addition, the reference voltage can be adjusted, allowing smaller voltage spans to be measured with 10-bit resolution. Features n Easy interface to all microprocessors n Differential analog voltage inputs n Operates ratiometrically or with 5 VDC voltage reference or analog span adjusted voltage reference n 0V to 5V analog input voltage range with single 5V supply n On-chip clock generator n TLL/MOS input/output compatible n 0.3" standard width 20-pin DIP Key Specifications n Resolution n Linearity Error n Conversion Time 10 bits ± 1⁄2 LSB and ± 1 LSB 50 µs Connection Diagram ADC 1005 (for an 8–bit data bus) Dual-In-Line Package DS005261-1 Top View Ordering Information Part Number ADC1005BCJ-1 ADC1005BCJ ADC1005CCJ-1 ADC1005CCJ Package Outline J20A J20A J20A J20A Temperature Range 0˚C to +70˚C −40˚C to +85˚C 0˚C to +70˚C −40˚C to +85˚C Linearity Error ± 1⁄2 LSB ± 1 LSB TRI-STATE ® is a registered trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS005...