ADC0809CCN 8-Bit uP Compatible A/D Converters with 8-Channel Multiplexer ic internal circuit
electronic integrated circuit
,linear integrated circuits
ADC0809CCN 8-Bit uP Compatible A/D Converters with 8-Channel Multiplexer
ic internal circuit
Features
►Easy interface to all microprocessors
►Operates ratiometrically 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 5V input range with single 5V power supply
►Outputs meet TTL voltage level specifications
► Standard hermetic or molded 28-pin DIP package
► 28-pin molded chip carrier package
► ADC0808 equivalent to MM74C949
►ADC0809 equivalent to MM74C949-1
Key Specifications
►Resolution: 8 Bits
► Total Unadjusted Error: ±1⁄2 LSB and ±1 LSB
► Single Supply: 5 VDC
► Low Power: 15 mW
► Conversion Time: 100 µs
General Description
The ADC0808, 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 ADC0808, ADC0809 has been optimized by incorporating the most desirable aspects of several A/D conversion techniques. The ADC0808, ADC0809 offers high speed, high accuracy, minimal temperature dependence, excellent long-term accuracy and repeatability, and consumes minimal power. These features make this device ideally suited to applications from process and machine control to consumer and automotive applications. For 16-channel multiplexer with common output (sample/hold port) see ADC0816 data sheet. (See AN-247 for more information.)
STOCK LIST
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