AD8138
ABSOLUTE MAXIMUM RATINGS1
PIN CONFIGURATION
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5.5 V
VOCM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±VS
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . 550 mW
+IN
NC
–IN
1
2
3
4
8
7
6
5
2 (SOIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155∞C/W
V
OCM
JA
Operating Temperature Range . . . . . . . . . . . –40∞C to +85∞C
Storage Temperature Range . . . . . . . . . . . . –65∞C to +150∞C
Lead Temperature (Soldering 10 sec) . . . . . . . . . . . . . . 300∞C
V+
V–
+OUT
–OUT
AD8138
NOTES
NC = NO CONNECT
1 Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational section
of this specification is not implied. Exposure to Absolute Maximum Ratings for
extended periods may affect device reliability.
PIN FUNCTION DESCRIPTIONS
Pin No. Mnemonic Function
2 Thermal resistance measured on SEMI standard four-layer board.
1
2
–IN
Negative Input Summing Node
R
= 499⍀
F
VOCM
Voltage applied to this pin sets the
common-mode output voltage with a
ratio of 1:1. For example, 1 V dc on
VOCM will set the dc bias level on +OUT
and –OUT to 1 V.
R
= 499⍀
= 499⍀
G
49.9⍀
R
= 499⍀
AD8138
L,dm
R
G
24.9⍀
R
= 499⍀
F
3
4
V+
Positive Supply Voltage
+OUT
Positive Output. Note that the voltage at
–DIN is inverted at +OUT. (See Figure 2.)
Figure 1. Basic Test Circuit
5
–OUT
Negative Output. Note that the voltage
at +DIN is inverted at –OUT. (See
Figure 2.)
6
7
8
V–
Negative Supply Voltage
No Connect
NC
+IN
Positive Input Summing Node
ORDERING GUIDE
Temperature
Range
Package
Description
Package
Option
Branding
Information
Model
AD8138AR
–40∞C to +85∞C
8-Lead SOIC
8-Lead SOIC
8-Lead SOIC
8-Lead MSOP
8-Lead MSOP
8-Lead MSOP
Evaluation Board
R-8
AD8138AR-REEL
AD8138AR-REEL7
AD8138ARM
AD8138ARM-REEL
AD8138ARM-REEL7
AD8138-EVAL
–40∞C to +85∞C
–40∞C to +85∞C
–40∞C to +85∞C
–40∞C to +85∞C
–40∞C to +85∞C
13" Tape and Reel
7" Tape and Reel
RM-8
13" Tape and Reel
7" Tape and Reel
HBA
HBA
HBA
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
AD8138 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid performance degradation or loss of functionality.
–4–
REV. E
ADI [ ADI ]
