AS1524/AS1525
Datasheet
Contents
1 General Description ............................................................................................................................. 1
2 Key Features ........................................................................................................................................ 1
3 Applications .......................................................................................................................................... 1
4 Pinout ................................................................................................................................................... 3
Pin Assignment ................................................................................................................................................... 3
Pin Description ..................................................................................................................................................... 3
5 Absolute Maximum Ratings ................................................................................................................. 4
6 Electrical Characteristics ...................................................................................................................... 5
Timing Characteristics ......................................................................................................................................... 7
7 Typical Operating Characteristics ........................................................................................................ 8
8 Detailed Description ........................................................................................................................... 11
True Differential Analog Input Track/Hold .......................................................................................................... 11
Selecting AIN1 or AIN2 (AS1525) ......................................................................................................................11
Selecting Unipolar or Bipolar Conversions (AS1524) .........................................................................................12
Input Bandwidth ..................................................................................................................................................13
Analog Input Protection ......................................................................................................................................13
Internal Clock ......................................................................................................................................................13
Output Data Format ............................................................................................................................................13
Transfer Function ................................................................................................................................................13
9 Application Information .......................................................................................................................15
Automatic Shutdown Mode .................................................................................................................................15
External Reference .............................................................................................................................................15
Performing a Conversion ....................................................................................................................................15
Standard Interface Connections ..........................................................................................................................15
SPI and Microwire Interface........................................................................................................................... 15
QSPI Interface ................................................................................................................................................16
PIC16 and SSP Module and PIC17 Interface ................................................................................................17
Layout and Grounding Considerations .............................................................................................................. 19
10 Package Drawings and Markings .................................................................................................... 20
11 Ordering Information ........................................................................................................................ 21
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