ML2280

May 1997 ML2280*, ML2283** Serial I/O 8-Bit A/D Converters GENERAL DESCRIPTION The ML2280 and ML2283 are 8-bit successive approximation A/D converters with serial I/O and configurable input multiplexers with up to 4 input channels. All errors of the sample-and-hold incorporated on the ML2280 and ML2283 are accounted for in the analog-todigital converters accuracy specification. The voltage reference can be externally set to any value between GND and VCC, thus allowing a full conversion over a relatively small voltage span if desired. The ML2283 is an enhanced double polysilicon, CMOS, pin-compatible second source for the ADC0833 A/D converter. All parameters are guaranteed over temperature with a power supply voltage of 5V ±10%. FEATURES s s s Conversion time: 6µs ML2280 capable of digitizing a 5V, 40kHz sine wave Total unadjusted error with external reference: ±1/2LSB or ±1LSB Sample-and-hold: 375ns acquisition 0 to 5V analog input range with single 5V power supply 2.5V reference provides 0 to 5V analog input range No zero- or full-scale adjust required Low power: 12.5mW MAX Analog input protection: 25mA (min) per input Differential analog voltage inputs (ML2280) Programmable multiplexer with differential or single ended analog inputs (ML2283) 0.3" width 8- or 14-pin DIP, or 8-Pin SOIC (ML2280) Superior pin-compatible replacement for ADC0833 s s s s s s s s s s * This Part Is Obsolete ** This Part Is End Of Life As Of August 1, 2000 BLOCK DIAGRAM ML2281 CONTROL AND T...