ADC0809-N Series
8-bit, 1-Ch µP Compatible A/D Converters with 1.25 LSB INL
Manufacturer: Texas Instruments
Catalog
8-bit, 1-Ch µP Compatible A/D Converters with 1.25 LSB INL
Key Features
• Easy Interface to All MicroprocessorsOperates Ratiometrically or with 5 VDCor Analog Span Adjusted Voltage ReferenceNo Zero or Full-Scale Adjust Required8-Channel Multiplexer with Address Logic0V to VCCInput RangeOutputs meet TTL Voltage Level SpecificationsADC0808 Equivalent to MM74C949ADC0809 Equivalent to MM74C949-1Key SpecificationsResolution: 8 BitsTotal Unadjusted Error: ±½ LSB and ±1 LSBSingle Supply: 5 VDCLow Power: 15 mWConversion Time: 100 μsAll trademarks are the property of their respective owners.Easy Interface to All MicroprocessorsOperates Ratiometrically or with 5 VDCor Analog Span Adjusted Voltage ReferenceNo Zero or Full-Scale Adjust Required8-Channel Multiplexer with Address Logic0V to VCCInput RangeOutputs meet TTL Voltage Level SpecificationsADC0808 Equivalent to MM74C949ADC0809 Equivalent to MM74C949-1Key SpecificationsResolution: 8 BitsTotal Unadjusted Error: ±½ LSB and ±1 LSBSingle Supply: 5 VDCLow Power: 15 mWConversion Time: 100 μsAll trademarks are the property of their respective owners.
Description
AI
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 (Literature Number SNOA595) for more information.)
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 (Literature Number SNOA595) for more information.)
