Rainbow-electronics ADC10D040 Manuale Utente Scaricare il pdf (Pagina 21)

Applications Information (Continued)

variability. The reference voltage at the V

REF

pin should be

bypassed to AGND witha5µF(orlarger) tantalum or

electrolytic capacitor and a 0.1 µF ceramic capacitor.

The circuit of Figure 6 may be used if it is desired to obtain

a precise reference voltage not available with a fixed refer-

ence source. The 604Ω and 1.40k resistors can be replaced

with a potentiometer, if desired.

20029770

FIGURE 3. Use of an input transformer for single-ended to differential conversion can simplify circuit design for

single-ended signals.

20029771

FIGURE 4. Simple Reference Biasing

ADC10D040

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Rainbow-electronics ADC10D040 Manuale Utente Pagina 21