ADC0803 Datasheet PDF

●DESCRIPTION

●The ADC0801, ADC0802, ADC0803, ADC0804 and ADC0805 are CMOS 8-bit successive approximation A/D converters that use a differential potentiometric ladder — similar to the 256R products. These converters are designed to allow operation with the NSC800 and INS8080A derivative control bus with TRI-STATE output latches directly driving the data bus. These A/Ds appear like memory locations or I/O ports to the microprocessor and no interfacing logic is needed.

●FEATURES

●• Compatible with 8080 µP derivatives – no interfacing logic needed – access time 135 ns

●• Easy interface to all microprocessors, or operates “stand alone”

●• Differential analog voltage inputs

●• Logic inputs and outputs meet both MOS and TTL voltage level specifications

●• Works with 2.5V (LM336) voltage reference

●• On-chip clock generator

●• 0V to 5V analog input voltage range with single 5V supply

●• No zero adjust required

●• 0.3" standard width 20-pin DIP package

●• 20-pin molded chip carrier or small outline package

●• Operates ratiometrically or with 5 VDC , 2.5 VDC, or analog span adjusted voltage reference