ZSC31150 Datasheet

© 2016 Integrated Device Technology, Inc.

13

December 6, 2016

Figure 2.2 Measurement Cycle

Start Routine

1

Temperature auto-zero



n

Bridge sensor measurement



1

Temperature measurement



n

Bridge sensor measurement



1

Bridge sensor auto-zero



n

Bridge sensor measurement



1

CMV



n

Bridge sensor measurement



1

SSC/SCC+



n

Bridge sensor measurement



1

SSC/SCC-



n

Bridge sensor measurement

2.3.4 Analog-to-Digital Converter

The ADC is an integrating analog-to-digital converter in full differential switched capacitor technique.

The ADC can be used as a first or second order converter. In the first order mode, it is inherently monotone and insensitive to short and

long-term instability of the clock frequency. The conversion cycle time depends on the desired resolution and can be roughly calculated by the















2

2

t

ADC_1

OSC

r

f

ADC

In the second order mode, two conversions are stacked with the advantage of a much shorter conversion cycle time but the drawback of a

calculated by the following equation:

















2

2

t

2

/

)

3

(

ADC_2

OSC

r

f

ADC

Spreadsheet for detailed calculations for sampling time and bandwidth.