SX8722I070LF SEMTECH [Semtech Corporation], SX8722I070LF Datasheet - Page 5

• Manufacturer Part Number: SX8722I070LF
• Description: High gain acquisition for sensor interface
• Manufacturer: SEMTECH [Semtech Corporation]

Section
13.
14.
15.
16.
17.
18.
19.
20.
ACS - Revision 4.2
©2008 Semtech Corp.
ADVANCED COMMUNICATIONS & SENSING
Table of contents
13.1. Current consumption...................................................................................................................................... 75
13.2. ZoomingADC ................................................................................................................................................. 76
14.1. Memory Map .................................................................................................................................................. 79
14.2. Register description ....................................................................................................................................... 82
15.1. Power modes transitions.............................................................................................................................. 100
15.2. Active mode ................................................................................................................................................. 101
15.3. Sleep mode.................................................................................................................................................. 101
15.4. Shutdown mode ........................................................................................................................................... 103
Typical performances ............................................................................................................................................ 75
Register Memory Map and Description ................................................................................................................. 79
Power modes....................................................................................................................................................... 100
PCB Layout Considerations................................................................................................................................. 105
How to Evaluate................................................................................................................................................... 105
Package Outline Drawing: MLPQ44-7x7mm ....................................................................................................... 105
Land Pattern Drawing: MLPQ44-7x7mm............................................................................................................. 106
Tape and Reel Specification................................................................................................................................ 107
13.2.1. Integral non-linearity ............................................................................................................................... 76
13.2.2. Differential non-linearity ......................................................................................................................... 77
13.2.3. Resolution vs acquisition time................................................................................................................. 78
14.2.1. SX8722 general configuration................................................................................................................. 82
14.2.2. Configuration 1 registers......................................................................................................................... 84
14.2.3. Configuration 2 registers......................................................................................................................... 88
14.2.4. Configuration 3 registers......................................................................................................................... 92
14.2.5. Configuration 4 registers......................................................................................................................... 96
15.2.1. Description ............................................................................................................................................ 101
15.2.2. How to set SX8722 in active mode ....................................................................................................... 101
15.3.1. Description ............................................................................................................................................ 101
15.3.2. Operating specifications of the sleep mode .......................................................................................... 101
15.3.3. SX8722 sleep current consumption below 3V Vbat.............................................................................. 102
15.3.4. SX8722 sleep current consumption with the 32.768 kHz Xtal .............................................................. 102
15.3.5. SX8722 sleep current consumption without the 32.768 KHz Xtal......................................................... 102
15.3.6. How to set SX8722 in sleep mode........................................................................................................ 102
15.3.7. Wake up from sleep mode to active mode............................................................................................ 102
15.4.1. Description ............................................................................................................................................ 103
15.4.2. Operating specifications in shutdown mode ......................................................................................... 103
15.4.3. How to set SX8722 in shutdown mode ................................................................................................. 103
15.4.4. Wake-up from shutdown mode to active mode..................................................................................... 104
15.4.5. Change from shutdown mode to sleep mode ....................................................................................... 104
October 2008
Page 5
High gain acquisition for sensor interface
DATASHEET
www.semtech.com
SX8722
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