OPA691 datasheet(29/39 Pages) TI

Part #	OPA691

Description	OPA2675 Dual, High Output Current Operational Amplifier With Active Off-Line Control

PDF	39 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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29 / 39 page

11.2 Layout Example

Place bypass capacitor

close to power pins

Connect the thermal pad to a heat

spreading plane; the plane must be at

the same potential as VS–

Thermal Pad

Ground and power plane removed

from inner layers. Ground fill on

outer layers also removed.

Ground and power plane exist on

inner layers.

Bias

Control

CBYP

+ IN A

Place the feedback resistors, RF

and RG, and the source resistors,

RS, as close to the device

pins as possible to minimize parasitics

Considering high power capabilities,

use wide supply traces to the bypass

capacitors to minimize inductance

Place as many vias as possible under

the thermal pad and connect them to a

heat spreading plane that is at the

same potential as VS–

- IN A

Layout Recommendations have been shown for Channel A only, follow similar precautions for Channel B.

Figure 11-1. Layout Recommendations

www.ti.com

OPA2675

SBOSAA5B – APRIL 2022 – REVISED SEPTEMBER 2022

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OPA691 Datasheet(PDF) 29 Page - Texas Instruments