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ADC081C027 - 12-Bit Analog-to-Digital Converter

Download the ADC081C027 datasheet PDF. This datasheet also covers the ADC081C021 variant, as both devices belong to the same 12-bit analog-to-digital converter family and are provided as variant models within a single manufacturer datasheet.

General Description

The ADC121C021 is a low-power, monolithic, 12-bit, analogto-digital converter(ADC) that operates from a +2.7 to 5.5V supply.

The converter is based on a successive approximation register architecture with an internal track-and-hold circuit that can handle input frequencies up to 11MHz.

Key Features

  • an I2C-compatible serial interface that operates in all three speed modes, including high speed mode (3.4MHz). The ADC's Alert feature provides an interrupt that is activated when the analog input violates a programmable upper or lower limit value. The device features an automatic conversion mode, which frees up the controller and I2C interface. In this mode, the ADC continuously monitors the analog input for an "out-of-range" condition and provides an interrupt if the measured voltage goes out-.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ADC081C021_NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
ADC081C027 8-Bit Analog-to-Digital Converter Texas Instruments
ADC081C021 8-Bit Analog-to-Digital Converter Texas Instruments
ADC08100 A/D Converter Texas Instruments
ADC081000 A/D Converter Texas Instruments
ADC08131 8-Bit High-Speed Serial I/O A/D Converters Texas Instruments

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
ADC081C021 12-Bit Analog-to-Digital Converter
ADC08100 A/D Converter
ADC081000 1 GSPS A/D Converter
ADC0811 8-Bit Serial I/O A/D Converter
ADC08131 8-Bit High-Speed Serial I/O A/D Converters

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
ADC121C021/ADC121C027 I2C-Compatible, 12-Bit Analog-to-Digital Converter (ADC) with Alert January 17, 2008 ADC121C021/ADC121C027 I2C-Compatible, 12-Bit Analog-to-Digital Converter (ADC) with Alert Function General Description The ADC121C021 is a low-power, monolithic, 12-bit, analogto-digital converter(ADC) that operates from a +2.7 to 5.5V supply. The converter is based on a successive approximation register architecture with an internal track-and-hold circuit that can handle input frequencies up to 11MHz. The ADC121C021 operates from a single supply which also serves as the reference. The device features an I2C-compatible serial interface that operates in all three speed modes, including high speed mode (3.4MHz).