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ADC121C021 Datasheet 12-bit Analog-to-digital Converter

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: ADC121C021/ADC121C027 I2C-patible, 12-Bit Analog-to-Digital Converter (ADC) with Alert January 17, 2008 ADC121C021/ADC121C027 I2C-patible, 12-Bit Analog-to-Digital Converter (ADC) with Alert.

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.

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-.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Texas Instruments Logo ADC121C021 12-Bit Analog-to-Digital Converter Texas Instruments
Texas Instruments Logo ADC121C021Q 12-Bit Analog-to-Digital Converter Texas Instruments

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ADC121C021 Distributor