AD7569 PDF Datasheet


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Description

This is 8-Bit Analog I/0 Systems. a FEATURES 2 s ADC with Track, Hold 1 s DAC with Output Amplifier AD7569, Single DAC Output AD7669, Dual DAC Output On-Chip Bandgap Reference Fast Bus Interface Single or Dual 5 V Supplies LC2MOS Complete, 8-Bit Analog I, 0 Systems AD7569, AD7669 AD7569 FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION The AD7569, AD7669 is a complete, 8-bit, analog I, O system on a single monolithic chip. The AD7569 contains a high speed successive approximation ADC with 2 s conversion time, a track, hold with 200 kH- bandwidth, a DAC and an output buffer amplifier with 1 s settling time. A temperature-compensated 1.25 V bandgap reference provides a precision reference voltage for the ADC and the DAC. The AD7669 is similar, but contains two DACs with output buffer amplifiers. A choice of analog input, output ranges is available. Using a supply voltage of +5 V, input and output ranges of zero to 1.25 V and zero to 2.5 volts may be programmed using the RANGE input pin. Using a ± 5 V supply, bipolar ra.