Figure 4. simple reference biasing, Figure 3, Figure 4 – Rainbow Electronics ADC10D040 User Manual
Page 21: Applications information
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Applications Information
(Continued)
variability. The reference voltage at the V
REF
pin should be
bypassed to AGND with a 5 µF (or larger) 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 604
Ω 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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