THS1030 Datasheet, PDF (13/22 Pages) Texas Instruments – 2.7 V . 5.5 V, 10-BIT, 30 MSPS CMOS ANALOG-TO-DIGITAL CONVERTER

V_REF-pin reference (continued)
THS1030
2.7 V – 5.5 V, 10-BIT, 30 MSPS
CMOS ANALOG-TO-DIGITAL CONVERTER
SLAS243A – NOVEMBER 1999 – REVISED JANUARY 2000
PRINCIPLES OF OPERATION
THS1030
ADC/DAC
REF
+
_
+
VBG _–
VREF = 1 V
REFSENSE
AGND
Figure 10. V_REF 1-V Reference Mode
D 2-V reference: The internal reference may be set to 2 V by connecting REFSENSE to AGND.
THS1030
ADC/DAC
REF
+
_
+
VBG _–
VREF = 2 V
REFSENSE
AGND
Figure 11. V_REF 2-V Reference Mode
D External divider: The internal reference can be set to a voltage between 1 V and 2 V by adding external
resistors.
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