I2c-compatible, 12-bit Analog-to-digital Converter (adc) With Alert Function - National Semiconductor

The ADC121C021 is a low-power, monolithic, 12-bit, analog- to-digital converter(ADC) that operates from a +2.7 to 5.5V supply. The converter is based on a successive approxima- tion 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). The ADC's Alert feature provides an interrupt that is activated when the Analog input violates a programmable upper or low- er 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 mea- sured voltage goes out-of-range. The ADC121C021 comes in a small TSOT-6 package with an alert output. The ADC121C027 comes in a small TSOT-6 package with an address selection input. The ADC121C027 provides three pin-selectable addresses. Pin-compatible al- ternatives are available with additional address options. Normal power consumption using a +3V or +5V supply is 0.26mW or 0.78mW, respectively. The Automatic power- down feature reduces the power consumption to less than 1W while not converting. Operation over the industrial tem- perature range of 40C to +105C is guaranteed. Their low power consumption and small packages make this family of ADCs an excellent choice for use in battery operated equip- ment. The ADC121C021 and ADC121C027 are part of a family of pin-compatible ADCs that also provide 8 and 10 bit resolution. For 8-bit ADCs see the ADC081C021 and ADC081C027. For 10-bit ADCs see the ADC101C021 and ADC101C027. By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
ADC121C021CIMK/NOPB Texas Instruments I2C-Compatible, 12-Bit Analog-to-Digital Converter with Alert Pin 6-SOT-23-THIN -40 to 105
ADC121C021CIMMX/NOPB Texas Instruments I2C-Compatible, 12-Bit Analog-to-Digital Converter with Alert Pin 8-VSSOP -40 to 105
ADC121C021QIMKX/NOPB Texas Instruments Automotive I2C-Compatible, 12-Bit Analog-to-Digital Converter with Alert Pin 6-SOT-23-THIN -40 to 105
ADC121C021QIMK/NOPB Texas Instruments Automotive I2C-Compatible, 12-Bit Analog-to-Digital Converter with Alert Pin 6-SOT-23-THIN -40 to 105
ADC121C021CIMM/NOPB Texas Instruments I2C-Compatible, 12-Bit Analog-to-Digital Converter with Alert Pin 8-VSSOP -40 to 105
ADC121C021CIMKX/NOPB Texas Instruments I2C-Compatible, 12-Bit Analog-to-Digital Converter with Alert Pin 6-SOT-23-THIN -40 to 105
ADC121C021 's PackagesADC121C021 's pdf datasheet



ADC121C021 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
ADC121C021 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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