参数资料
型号: SX8725CWLTDT
元件分类: ADC
英文描述: 2-CH 16-BIT PROPRIETARY METHOD ADC, SERIAL/PARALLEL ACCESS, PDSO12
封装: 4 X 4 MM, HALOGEN FREE AND ROHS COMPLIANT, MLPD-12
文件页数: 30/68页
文件大小: 1718K
代理商: SX8725CWLTDT
www.semtech.com/products/
Page 36
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
SX8725C
ZoomingADC for sensing data acquisition
Revision 1.01
January 2011
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:
Operate the acquisition chain with a reduced supply voltage VBATT.
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.
Finally, remember that power reduction is typically traded off with reduced linearity, larger noise and slower maximum
sampling speed.
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SX8725E083TRT 3-CH 16-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO12
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