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| AMC7834 Datasheet, PDF (45/93 Pages) Texas Instruments – AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities | |||
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AMC7834
SLAS972B â NOVEMBER 2014 â REVISED MARCH 2016
7.3.7.2 External Reference Operation
The AMC7834 device can also operate from an external reference. The external reference can be applied to the
REF_IN pin and is used to drive both the ADC and the eight DACs through separate buffers (see Figure 61). As
with the internal-reference case a compensation capacitor (4.7 μF, typical) should be connected between the
REF_CMP pin and the AGND4 pin. The REF_OUT pin can be left floating if unused.
C > 4.7 µF
(Minimize
inductance to pin)
REF_CMP
Internal
Reference
(2.5 V)
REF_OUT
REF_IN
External
Reference
(2.5 V)
ADC1
ADC2
ADC
12-b
DAC Reference
DAC1
12-b
DAC2
12-b
ADC4
AUXDAC4
12-b
Figure 61. External Reference Operation
Copyright © 2014â2016, Texas Instruments Incorporated
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