OPA4188 Datasheet, PDF (24/35 Pages) Texas Instruments – Zero-Drift Operational Amplifiers

OPA4188
SBOS641C – JUNE 2012 – REVISED NOVEMBER 2015
11.2 Layout Example
VIN A
RG
+
RF
VIN B
VOUT A
RG
+
RF
VOUT B
VIN C
RG
+
RF
VIN D
VOUT C
RG
(Schematic Representation)
+
RF
VOUT D
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RF
GND
RG
VIN A
GND
VIN B
RG
GND
RF
Place components
close to device and to
each other to reduce
parasitic errors
Output A
-In A
+In A
V+
+In B
-In B
Output B
Output D
-In D
+In D
V-
+In C
-In C
Output C
Keep input traces short
and run the input traces
as far away from
the supply lines
as possible
Ground (GND) plane on another layer
Figure 48. OPA4188 Layout Example
RF
GND
RG
VIN D
GND
VIN C
RG
GND
RF
Use low-ESR,
ceramic bypass
capacitor. Place as
close to the device
as possible
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