OPA322-Q1_17 Datasheet, PDF (24/39 Pages) Texas Instruments – 20-MHz, Low-Noise, 1.8-V, RRI/O, CMOS Operational Amplifier

OPA322-Q1
OPA2322-Q1
OPA4322-Q1
SLOS856B – JUNE 2013 – REVISED MAY 2017
11 Layout
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11.1 Layout Guidelines
The OPAx322-Q1 is a wideband amplifier. To realize the full operational performance of the device, follow good
high-frequency printed-circuit board (PCB) layout practices. The bypass capacitors must be connected between
each supply pin and ground as close as possible to the device. The bypass capacitor traces must be designed
for minimum inductance.
11.2 Layout Example
VOUT
Use a low-ESR,
ceramic bypass
capacitor.
GND
VS+
VS±
OUT
V+
V±
Use a low-ESR,
ceramic bypass
GND
capacitor.
VIN
+IN
RG
±IN
GND
Run the input traces
as far away from
the supply lines
as possible.
RF
Place components
close to the device
and to each other to
reduce parasitic
errors.
Copyright © 2017, Texas Instruments Incorporated
Figure 37. Layout Example
24
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