
AD8551/AD8552/AD8554
TABLE OF CONTENTS
Features..............................................................................................1
Rev. C | Page 2 of 24
Applications.......................................................................................1
General Description.........................................................................1
Pin Configurations...........................................................................1
Revision History...............................................................................2
Specifications.....................................................................................3
Electrical Characteristics.............................................................3
Absolute Maximum Ratings............................................................5
Thermal Characteristics..............................................................5
ESD Caution..................................................................................5
Typical Performance Characteristics.............................................6
Functional Description..................................................................14
Amplifier Architecture ..............................................................14
Basic Auto-Zero Amplifier Theory..........................................14
High Gain, CMRR, PSRR..........................................................16
Maximizing Performance Through Proper Layout...............16
1/f Noise Characteristics ........................................................... 16
Intermodulation Distortion...................................................... 17
Broadband and External Resistor Noise Considerations...... 18
Output Overdrive Recovery...................................................... 18
Input Overvoltage Protection................................................... 18
Output Phase Reversal............................................................... 19
Capacitive Load Drive............................................................... 19
Power-Up Behavior.................................................................... 19
Applications..................................................................................... 20
5 V Precision Strain Gage Circuit......................................
....
.. 20
3 V Instrumentation Amplifier................................................ 20
High Accuracy Thermocouple Amplifier....................
....
....... 21
Precision Current Meter............................................................ 21
Precision Voltage Comparator.................................................. 21
Outline Dimensions....................................................................... 22
Ordering Guide .......................................................................... 23
REVISION HISTORY
3/07—Rev. B to Rev. C
Changes to Specifications Section.................................................. 3
2/07—Rev. A to Rev. B
Updated Format..................................................................Universal
Changes to Figure 54......................................................................16
Deleted Spice Model Section.........................................................19
Deleted Figure 63, Renumbered Sequentially ............................19
Changes to Ordering Guide..........................................................24
11/02—Rev. 0 to Rev. A
Edits to Figure 60............................................................................16
Updated Outline Dimensions.......................................................20