XRD8799 Datasheet, PDF (15/23 Pages) Exar Corporation – LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX

XRD8799
LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX
REV. 1.00
FIGURE 17. EXAMPLE OF A REFERENCE VOLTAGE SOURCE
xr
0.1µF
+5V
5k
100k
MP5010
+
+
-
-
FIGURE 18. ±5V ANALOG INPUT
1 of 8 _{+5V R}
+
V_IN
-
+5V
+5V
R
V_REF(+)
AV_DD
A_IN1
A_IN8
V_REF(-)
AGND
DB0
For R = 5k use Beckman Instruments #694-3-R10k resistor array or equivalent.
NOTE: High R values affect the input BW of ADC due to the (R * C_IN of ADC) time constant. Therefore, for different applica-
tions the R value needs to be selected as a trade-off between A_IN settling time and power dissipation.
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