
ADC0804-N Series
8-Bit, 1-Ch µP Compatible A/D Converters with 1 LSB INL
Manufacturer: Texas Instruments
Catalog
8-Bit, 1-Ch µP Compatible A/D Converters with 1 LSB INL
Key Features
• Compatible With 8080-µP Derivatives – NoInterfacing Logic Needed – Access Time 135 nsEasy Interface to All Microprocessors, or Operatesas a Stand-Alone DeivceDifferential Analog Voltage InputsLogic Inputs and Outputs Meet Both MOS andTTL Voltage-Level SpecificationsWorks With 2.5-V (LM336) Voltage ReferenceOn-Chip Clock Generator0-V to 5-V Analog Input Voltage Range WithSingle 5-V SupplyNo Zero Adjust Required0.3-Inch Standard Width 20-Pin DIP Package20-Pin Molded Chip Carrier or Small OutlinePackageOperates Ratiometrically or With 5 VDC, 2.5 VDC,or Analog Span Adjusted Voltage ReferenceKey SpecificationsResolution: 8 BitsTotal Error: ±1/4 LSB, ±1/2 LSB and ±1 LSBConversion Time: 100 µsCompatible With 8080-µP Derivatives – NoInterfacing Logic Needed – Access Time 135 nsEasy Interface to All Microprocessors, or Operatesas a Stand-Alone DeivceDifferential Analog Voltage InputsLogic Inputs and Outputs Meet Both MOS andTTL Voltage-Level SpecificationsWorks With 2.5-V (LM336) Voltage ReferenceOn-Chip Clock Generator0-V to 5-V Analog Input Voltage Range WithSingle 5-V SupplyNo Zero Adjust Required0.3-Inch Standard Width 20-Pin DIP Package20-Pin Molded Chip Carrier or Small OutlinePackageOperates Ratiometrically or With 5 VDC, 2.5 VDC,or Analog Span Adjusted Voltage ReferenceKey SpecificationsResolution: 8 BitsTotal Error: ±1/4 LSB, ±1/2 LSB and ±1 LSBConversion Time: 100 µs
Description
AI
The ADC0801, ADC0802, ADC0803, ADC0804, and ADC0805 devices are CMOS 8-bit successive approximation converters (ADC) 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 ADCs appear like memory locations or I/O ports to the microprocessor and no interfacing logic is needed.
Differential analog voltage inputs allow increasing the common-mode rejection and offsetting the analog zero input voltage value. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution.
The ADC0801, ADC0802, ADC0803, ADC0804, and ADC0805 devices are CMOS 8-bit successive approximation converters (ADC) 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 ADCs appear like memory locations or I/O ports to the microprocessor and no interfacing logic is needed.
Differential analog voltage inputs allow increasing the common-mode rejection and offsetting the analog zero input voltage value. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution.