ADVANCED COMMUNICATIONS & SENSING

V1.5 © 2007 Semtech Corp.

www.semtech.com

3

SX8723

ZoomingADC™ for Pressure and Temperature Sensing

Registers Settings ................................................................................................................................................. 33

Schematic.............................................................................................................................................................. 34

Input Impedance.................................................................................................................................................... 35

Switched Capacitor Principle ................................................................................................................................ 36

PGA Settling or Input Channel Modifications ........................................................................................................ 37

PGA Gain & Offset, Linearity and Noise ............................................................................................................... 37

Frequency Response ............................................................................................................................................ 38

Power Reduction ................................................................................................................................................... 39

Typical Performance ............................................................................................................................................40

Linearity ................................................................................................................................................................. 40

Integral Non-Linearity............................................................................................................................................ 40

Differential Non-Linearity....................................................................................................................................... 43

Noise ..................................................................................................................................................................... 44

Gain Error and Offset Error ................................................................................................................................... 46

Power Consumption .............................................................................................................................................. 47

PCB Layout Considerations................................................................................................................................49

How to Evaluate....................................................................................................................................................49

Package Outline Drawing: MLPD-W-12 4x4.......................................................................................................50

Land Pattern Drawing: MLPD-W-12 4x4.............................................................................................................51

Tape and Reel Specification ...............................................................................................................................52