The ADC, ADC, ADC, ADC and. ADC are CMOS 8-bit successive approximation A/D converters that use a differential potentiometric. ADC datasheet, ADC circuit, ADC data sheet: NSC – 8 BIT UP COMPATIBLE A/D CONVERTERS,alldatasheet, datasheet, Datasheet search site. ADC ADC – 8-Bit µP Compatible A/D Converters, Package: Mdip, Pin Nb= The ADC, ADC and ADC are CMOS 8-bit successive.
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The output data latch is not updated if the conversion in progress is not completed. As long as the analog V IN does not exceed the supply voltage by more than. With an asynchronous start pulse, up to 8 clock periods may be required before the internal clock phases are proper to start the conversion.
In addition, the voltage reference input can be. See Figure 17 for details. DGND, being careful to avoid ground loops. In ratiometric converter applications. For example, if the span is reduced to 2.
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The data from the previous conversion remain in this latch. Output Short Circuit Current.
The differential analog voltage input has good common- mode-rejection and permits offsetting the analog zero-input- voltage value. However, if an all zero code is desired for an analog input other than 0V, or if a narrow full scale span exists for example: The converter can be operated in a pseudo-ratiometric mode.
As can be seen, this reduces the allowed initial tolerance of the refer- ence voltage and requires correspondingly less absolute change with temperature variations.
In absolute conversion applicatIons, both the initial.
In reduced span applica. If the minimum analog input voltage value, V lN MlNis not ground, a zero offset can be done. See the Zero Error description in this data sheet. Errors due to an improper value of reference. Users should follow proper IC Handling Procedures.
V REF The full scale adjustment can be made by applying a. The differential analog voltage input has good common. IC voltage regulators may be used for references if the. The converter can be made to output. Two on-chip diodes are tied to each analog input see Block Diagram which.
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An arbitrarily wide pulse width will hold the converter in a reset mode and the start of conversion is initiated by the low to high transition of the WR pulse see Timing Diagrams. This WR and INTR node should be momentarily forced to logic low following a power- up cycle to insure circuit operation. However, if an all zero code is desired for an analog input other than 0V, or if a narrow full scale span. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution.
To achieve an absolute 0V to 5V input voltage range will therefore require a minimum supply volt. These converters appear to the.
ADC0802 Datasheet PDF
Note that spans smaller than 2. Zero error is the difference.
Note that spans smaller. With an asynchronous start pulse, up to 8 clock periods may be required before the internal clock phases are proper to start the conversion process. An arbitrarily wide pulse. The output data latch is not updated if the.
In general, the reference voltage will require an initial adjustment. The data from the. Restart During a Conversion. IC voltage regulators may be used for references if the ambient temperature changes are not excessive.
The separate AGND point should always be wired to the. In general, daatsheet reference voltage will require an initial. As long as the analog V IN does not exceed the supply voltage by more than 50mV, the output code xdc0802 be correct. In this application, the CS input is grounded and the WR.