sx8723c Semtech Corporation, sx8723c Datasheet - Page 36
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sx8723c
Manufacturer Part Number
sx8723c
Description
Zoomingadc For Sensing Data Acquisition
Manufacturer
Semtech Corporation
Datasheet
1.SX8723C.pdf
(67 pages)
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Revision 1.01
© Semtech
8 Application hints
8.1 Power Reduction
The ZoomingADC is particularly well suited for low-power applications. When very low power consumption is of
primary concern, such as in battery operated systems, several parameters can be used to reduce power consumption
as follows:
Finally, remember that power reduction is typically traded off with reduced linearity, larger noise and slower maximum
sampling speed.
ADVANCED COMMUNICATIONS & SENSING
Operate the acquisition chain with a reduced supply voltage V
Disable the PGAs which are not used during analog-to-digital conversion with Enable[3:0].
Disable all PGAs and the ADC when the system is idle and no conversion is performed.
Use lower bias currents in the PGAs and the ADC using the control words IbAmpPga[1:0] and IbAmpAdc[1:0].
Reduce sampling frequency.
January 2011
Page 36
ZoomingADC for sensing data acquisition
BATT
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www.semtech.com/products/
SX8723C
DATASHEET
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