sx8724c Semtech Corporation, sx8724c Datasheet - Page 59

• Manufacturer Part Number: sx8724c
• Description: Zoomingadc For Sensing Data Acquisition
• Manufacturer: Semtech Corporation

Revision 1.01
© Semtech
As shown in
bias currents of the PGAs and the ADC with registers IbAmpPga and IbAmpAdc. (In
'00' for fs = 500, 250, 62.5 kHz respectively. The Charge Pump is forced ON for V
4.2V.
ADVANCED COMMUNICATIONS & SENSING
Figure
52, if lower sampling frequency is used, the current consumption can be lowered by reducing the
Figure 52. Current Consumption vs Temperature and ADC Sampling Frequency
January 2011
1'100
1'000
900
800
700
600
500
400
300
200
2.0
62.5Khz, Ibias = 0.25
125Khz, Ibias = 0.25
250Khz, Ibias = 0.5
500Khz, Ibias = 1
2.5
3.0
Page 59
3.5
V
BATT
[V]
4.0
ZoomingADC for sensing data acquisition
4.5
5.0
BATT
Figure
< 4.2V and forced OFF for V
5.5
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52, IbAmpPga/Adc = '11' , '10' ,
SX8724C
DATASHEET
BATT
>