OPA328DBVR datasheet(21/42 Pages) TI

21 / 42 page

7.3 Power Supply Recommendations

The OPAx328 are specified for operation from 2.2 V to 5.5 V (±1.1 V to ±2.75 V); many specifications apply

from –40°C to +125°C. Parameters that can exhibit significant variance with regard to operating voltage or

temperature are presented in Section 5.7.

CAUTION

Supply voltages greater than 6 V can permanently damage the device; see Section 5.1.

Place 0.1-µF bypass capacitors close to the power-supply pins to reduce errors coupling in from noisy or

high-impedance power supplies. For more detailed information on bypass capacitor placement, see Section 7.4.

7.4 Layout

7.4.1 Layout Guidelines

The OPA328 is a wideband amplifier. To realize the full operational performance of this device, use good,

high-frequency PCB layout practices. Connect the bypass capacitors between each supply pin and ground, as

close to the device as possible. Design the bypass capacitor traces for minimum inductance.

7.4.2 Layout Example

OUT A

-IN A

+IN A

V–

OUT B

-IN B

+IN B

V+

VS–

GND

Ground (GND) plane on another layer

Keep input traces short

and run the input traces

as far away from

the supply lines

as possible.

Place components

close to device and to

each other to reduce

parasitic errors.

Use low-ESR,

ceramic bypass

capacitor. Place as

close to the device

as possible.

VIN A

GND

VIN B

GND

VS+

GND

VOUT A

VOUT B

(Schematic Representation)

VIN B

VOUT B

VIN A

VOUT A

Use low-ESR,

ceramic bypass

capacitor. Place as

close to the device

as possible.

Figure 7-6. Operational Amplifier Board Layout for Noninverting Configuration

www.ti.com

OPA328, OPA2328

SBOS957D – FEBRUARY 2022 – REVISED DECEMBER 2023

Submit Document Feedback

Product Folder Links: OPA328 OPA2328

OPA328DBVR Datasheet(PDF) 21 Page - Texas Instruments

OPA328DBVR Datasheet(HTML) 21 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

Datasheet Download

Link URL