The AD7578 is a medium speed, monolithic 12-bit CMOS A/D converter which uses the successive approximation technique to provide a conversion time of 100µs. An auto-zero cycle occurs at the start of each conversion resulting in very low system offset voltages, typically less than 100µV. The device is designed for easy microprocessor interfacing using standard control signals; CS (decoded device address), RD (READ) and WR (WRITE).
Conversion results are available in two bytes, 8LSBs and 4MSBs, over an 8-bit three state output bus. Either byte can be read first. Two converter busy flags are available to facilitate polling of the converter's status.
The analog input voltage range is 0V to +5V when using a reference voltage of +5V.
|Title||Content Type||File Type|
|AD7578: CMOS 12-Bit Siccessive Approximation ADC Data Sheet (Rev B, 10/1993) (pdf, 766 kB)||Data Sheets|
|Glossary of EE Terms||Glossary||HTML|
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