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AD7569AR

  

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ADI
Analog Devices
AD7569AR -0.3 to +7V; 450mW; LC2MOS complete, 8-bit analog I/O system

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 µs conversion time, a track/
hold with 200 kHz bandwidth, a DAC and an output buffer amplifier with 1 µs 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 in
put pin. Using a ±5 V supply, bipolar ranges of ±1.25 V or ±2.5 V may be programmed.
Digital interfacing is via an 8-bit I/O port and standard micro processor control lines. Bus interface timing is extremely fast, allowing easy connection to all popular 8-bit microprocessors. A separate start convert line controls the track/hold and ADC to give precise control of the sampling period.
The AD7569/AD7669 is fabricated in Linear-Compatible CMOS (LC2MOS), an advanced, mixed technology process combining precision bipolar circuits with low power CMOS logic. The AD7569 is packaged in a 24-pin, 0.3" wide “skinny” DIP, a 24-terminal SOIC and 28-terminal PLCC and LCCC packages. The AD7669 is available in a 28-pin, 0.6" plastic DIP, 28-terminal SOIC and 28-terminal PLCC package.

FEATURES
2 ms ADC with Track/Hold
1 ms 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


other parts : AD7569  AD7569AN  AD7569AQ  AD7569BN  AD7569BQ  AD7569BR  AD7569JN  AD7569JP  AD7569JR  AD7569KN  
AD7569AR PDF

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