INA351 datasheet(30/48 Pages) TI2

Part #	INA351

Description	INA351 Cost and Size Optimized, Low Power, 1.8V to 5.5V Selectable Gain Instrumentation Amplifier with Integrated Reference Buffer

PDF	48 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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30 / 48 page

8.4 Layout

8.4.1 Layout Guidelines

Attention to good layout practices is always recommended. For best operational performance of the device, use

the following PCB layout practices:

• Make sure that both input paths are well-matched for source impedance and capacitance to avoid converting

common-mode signals into differential signals.

• Use bypass capacitors to reduce the coupled noise by providing low-impedance power sources local to the

analog circuitry.

– Connect low-ESR, 0.1-µF ceramic bypass capacitors between each supply pin and ground, placed as

close to the device as possible. A single bypass capacitor from V+ to ground is applicable for single-

supply applications.

• Route the input traces as far away from the supply or output traces as possible to reduce parasitic coupling. If

these traces cannot be kept separate, crossing the sensitive trace perpendicular is much better than crossing

in parallel with the noisy trace.

• Place the external components as close to the device as possible.

• Keep the traces as short as possible.

INA351

SBOSAD5D – DECEMBER 2022 – REVISED NOVEMBER 2024

www.ti.com

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INA351 Datasheet(PDF) 30 Page - Texas Instruments