The ADC0844 and ADC0848 are CMOS 8-bit successive approximation A/D converters with versatile analog input multiplexers. The 4-channel or 8-channel multiplexers can be software configured for single-ended, differential or pseudo-differential modes of operation.
The differential mode provides low frequency input common mode rejection and allows offsetting the analog range of the converter. In addition, the A/D's reference can be adjusted enabling the conversion of reduced analog ranges with 8-bit resolution. The A/Ds are designed to operate from the control bus of a wide variety of microprocessors. TRI-STATE® output latches that directly drive the data bus permit the A/Ds to be config- ured as memory locations or I/O devices to the microprocessor with no interface logic necessary.
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Easy interface to all microprocessorsOperates ratiometrically or with 5 VDC voltage referenceNo zero or full-scale adjust required4-channel or 8-channel multiplexer with address logicInternal clock0V to 5V input range with single 5V power supply0.3" standard width 20-pin or 24-pin DIP28 Pin Molded Chip Carrier Package
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Supply Voltage (VCC) 6.5V
Voltage
Logic Control Inputs −0.3V to +15V
At Other Inputs and Outputs −0.3V to VCC+0.3V
Input Current at Any Pin (Note 3) 5 mA
Package Input Current (Note 3) 20 mA
Storage Temperature −65˚C to +150˚C
Package Dissipation at TA=25˚C 875 mW
ESD Susceptibility (Note 4) 800V
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