24-Bit, Single-Channel, Ultra Low Power, Sigma Delta A/D Converter
The device operates from an internal clock. Therefore, the user does not have to supply a clock source to the device. The output data rate is 16.6 Hz which gives simultaneous 50 Hz/60 Hz rejection. Power supply monitoring can also be performed with the part.
The part can be used in single conversion mode whereby the device powers up, performs a single conversion and then returns to powerdown mode. Alternatively, it can be operated in continuous mode. In continuous conversion mode, the part can be configured to continuously read i.e. the conversions are placed on the serial bus automatically as soon as a conversion is complete (the user does not need to write to the ADC to read the data), assuming that the serial clock is applied to the device.
The AD7788/AD7789 is housed in a 10-lead MSOP package.
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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.