Datasheet Details
| Part number | ADC121C021 |
|---|---|
| Manufacturer | National Semiconductor (now Texas Instruments) |
| File Size | 600.13 KB |
| Description | 12-Bit Analog-to-Digital Converter |
| Datasheet |
 ADC121C021 Datasheet
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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-.
