ADC0800 Datasheet | National Semiconductor

Description The ADC0800 is an 8-bit monolithic A D converter using Pchannel ion-implanted MOS technology It contains a high input impedance parator 256 series resistors and analog switches control logic and output latches Conversion is performed using a successive approximation technique where the unknown analog voltage is pared to the resistor tie points using analog switches When the appropriate tie point voltage matches the unknown voltage conversion is plete and the digital outputs contain an 8-bit plementary binary word corresponding to the unknown The binary output is TRI-STATE to permit bussing on mon data lines The ADC0800PD is specified over b55 C to a 125 C and the ADC0800PCD is specified over 0 C to 70 C Features Y Y Y Y Y Y Y Y Y Y Y Y Y Low cost g 5V 10V input ranges No missing codes Ratiometric conversion TRI-STATE outputs Fast Contains output latches TTL patible Supply voltages Resolution Linearity Conversion speed Clock range TC e 50 ms 5 VDC and b12 VDC 8 bits g 1 LSB 40 clock periods 50 to 800 k Hz Block Diagram TL H 5670 - 1 (00000000 e a full-scale) TRI-STATE is a registered trademark of National Semiconductor Corp C1995 National Semiconductor Corporation TL H 5670 RRD-B30M115 Printed in U S A Absolute Maximum Ratings (Note 1) Power Dissipation (Note 3) ESD Susceptibility (Note 4) Storage Temperature Lead Temperature (Soldering 10 sec ) 875 m W 500V 150 C 300 C If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage (VDD) Supply Voltage (VGG) Voltage at Any Input Input Current at Any Pin (Note 2) Package Input Current (Note 2) VSSb22V VSSb22V VSS a 0 3V to VSSb22V 5 m A 20 m A Operating Ratings (Note 1) Temperature Range ADC0800PD ADC0800PCD TMIN s TA s TMAX b 55 C s TA s a 125 C 0 C s TA s a 70 C Electrical Characteristics These specifications apply for VSS e 5 0 VDC VGG eb12 0 VDC VDD e 0 VDC a reference voltage of 10...