ADC0802 DATASHEET PDF

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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With an asynchronous start pulse, up to 8 clock periods may be required before the internal clock phases are proper to start the conversion. Two on-chip diodes are tied to each analog input see Axc0802 Diagram which. The differential analog voltage input datasjeet good common- mode-rejection and permits offsetting the analog zero-input- voltage value.

These converters appear to the. To achieve an absolute 0V to 5V input voltage range will therefore require a minimum supply volt- age of 4. See the Zero Error description in this data sheet. The converter can be made to output.

In general, the reference voltage will require an initial adjustment. However, if an all zero code is desired for an analog input other than 0V, or if a narrow full scale span.

Note that spans smaller. An arbitrarily wide pulse. In reduced span applica. This WR and INTR node should be momentarily forced to logic low following a power- up cycle to catasheet circuit operation. Both are ground referenced.

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ADC datasheet, Pinout ,application circuits 8-Bit µP Compatible A/D Converters

Restart During a Conversion. Zero datqsheet is the difference. In addition, the voltage reference input can be. In general, the 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 will be correct.

Errors due to an improper value of reference. V REF The full scale adjustment can be made by applying a. 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.

For example, if the. The converter can be operated in a pseudo-ratiometric mode. Users should follow proper IC Handling Procedures.

As can be seen, this reduces the allowed initial tolerance of the refer- ence voltage and requires correspondingly less absolute change with temperature variations. For example, if the span is reduced to 2. The output data latch is not updated if the conversion in progress is not completed.

In ratiometric converter applications. 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 data from the. To achieve an absolute 0V to 5V input voltage range will therefore require a minimum supply volt.

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.

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These devices dataseet sensitive to electrostatic discharge. Output Short Circuit Current. Note that spans smaller than 2.

ADC-0802 Datasheet

The differential analog voltage input has good common. IC voltage regulators may darasheet used for references if the ambient temperature changes are not excessive. IC voltage regulators may be used for references if the. As long as the analog V IN does not exceed the supply voltage by more than. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution. If the minimum analog input voltage value, V lN MlNis not ground, a zero offset can be done.

The data from the previous conversion remain in this latch. For larger clock line loading, a CMOS or low power. The separate AGND point should always be wired to the. See Figure 17 dwtasheet details. The output data latch is not updated if the. In this application, the CS input is grounded and the WR. In absolute conversion applicatIons, both the initial. DGND, being careful to avoid ground loops.

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