
AD8138
TABLE OF CONTENTS
Features..............................................................................................1
Rev. F | Page 2 of 24
Applications.......................................................................................1
Pin Configuration.............................................................................1
Typical Application Circuit.............................................................1
General Description.........................................................................1
Revision History...............................................................................2
Specifications.....................................................................................3
±D
IN
to ±OUT Specifications......................................................3
V
OCM
to ±OUT Specifications.....................................................4
±D
IN
to ±OUT Specifications......................................................5
V
OCM
to ±OUT Specifications.....................................................6
Absolute Maximum Ratings............................................................7
Thermal Resistance......................................................................7
ESD Caution..................................................................................7
Pin Configuration and Function Descriptions.............................8
Typical Performance Characteristics.............................................9
Test Circuits.....................................................................................15
Operational Description................................................................16
Definition of Terms....................................................................16
Theory of Operation...................................................................... 17
Analyzing an Application Circuit ............................................ 17
Setting the Closed-Loop Gain.................................................. 17
Estimating the Output Noise Voltage...................................... 17
The Impact of Mismatches in the Feedback Networks......... 18
Calculating an Application Circuit’s Input Impedance......... 18
Input Common-Mode Voltage Range in Single-Supply
Applications ................................................................................ 18
Setting the Output Common-Mode Voltage.......................... 18
Driving a Capacitive Load......................................................... 18
Layout, Grounding, and Bypassing.............................................. 19
Balanced Transformer Driver....................................................... 20
High Performance ADC Driving................................................. 21
3 V Operation................................................................................. 22
Outline Dimensions....................................................................... 23
Ordering Guide .......................................................................... 23
REVISION HISTORY
1/06—Rev. E to Rev. F
Changes to Features.......................................................................... 1
Added Thermal Resistance Section and Maximum Power
Dissipation Section........................................................................... 7
Changes to Balanced Transformer Driver Section.....................20
Changes to Ordering Guide..........................................................23
3/03—Rev. D to Rev. E
Changes to Specifications................................................................ 2
Changes to Ordering Guide............................................................ 4
Changes to TPC 16........................................................................... 6
Changes to Table I............................................................................ 9
Added New Paragraph after Table I.............................................10
Updated Outline Dimensions.......................................................14
7/02—Rev. C to Rev. D
Addition of TPC 35 and TPC 36.....................................................8
6/01—Rev. B to Rev. C
Edits to Specifications ......................................................................2
Edits to Ordering Guide...................................................................4
12/00—Rev. A to Rev. B
9/99—Rev. 0 to Rev. A
3/99—Rev. 0: Initial Version