ADC0809 (8-bit Analog To Digital Converters)

Description

ADC0809 Analog To Digital ConvertersThe ADC0809 data acquisition component is a monolithic CMOS device with an 8-bit analog-to-digital converter, 8-channel multiplexer and microprocessor compatible control logic. The 8-bit A/D converter uses successive approximation as the conversion technique. The converter features a high impedance chopper stabilized comparator, a 256R voltage divider with analog switch tree and a successive approximation register. The 8-channel multiplexer can directly access any of 8-single-ended analog signals.The device eliminates the need for external zero and full-scale adjustments. Easy interfacing to microprocessors is provided by the latched and decoded multiplexer address inputs and latched TTL TRI-STATE outputs.The design of the ADC0809 has been optimized by incorporating the most desirable aspects of several A/D conversion techniques. The ADC0809 offers high speed, high accuracy, minimal temperature dependence, excellent long-term accuracy and repeat-ability, and consumes minimal power. These features make this device ideally suited to applications from process and machine control to consumer and automotive applications.Features:Easy Interface to All Microprocessors.Operates Ratio-metrically or with 5 VDC or Analog Span Adjusted Voltage Reference.No Zero or Full-Scale Adjust Required.8-Channel Multiplexer with Address Logic.0V to VCC Input Range.Outputs meet TTL Voltage Level Specifications.ADC0809 Equivalent to MM74C949-1.Specifications: Parame