Table of Contents

1 Features............................................................................1

2 Applications..................................................................... 1

3 Description.......................................................................1

4 Revision History.............................................................. 2

5 Device Comparison Table...............................................4

6 Pin Configuration and Functions...................................5

7 Specifications.................................................................. 7

7.1 Absolute Maximum Ratings ....................................... 7

7.2 ESD Ratings .............................................................. 7

7.3 Recommended Operating Conditions ........................7

7.4 Thermal Information for Single Channel .................... 7

7.5 Thermal Information for Dual Channel .......................8

7.6 Electrical Characteristics ............................................9

7.7 Typical Characteristics: OPA375...............................12

7.8 Typical Characteristics: OPA2375.............................19

8 Detailed Description......................................................26

8.1 Overview................................................................... 26

8.2 Functional Block Diagram......................................... 26

8.3 Feature Description...................................................26

8.4 Device Functional Modes..........................................31

9 Application and Implementation.................................. 32

9.1 Application Information............................................. 32

9.2 Single-Supply Electret Microphone Preamplifier

With Speech Filter....................................................... 32

10 Power Supply Recommendations..............................35

11 Layout........................................................................... 36

11.1 Layout Guidelines................................................... 36

11.2 Layout Example...................................................... 37

12 Device and Documentation Support..........................39

12.1 Documentation Support.......................................... 39

12.2 Receiving Notification of Documentation Updates..39

12.3 Support Resources................................................. 39

12.4 Trademarks.............................................................39

12.5 Electrostatic Discharge Caution..............................39

12.6 Glossary..................................................................39

13 Mechanical, Packaging, and Orderable

Information.................................................................... 40

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision D (February 2021) to Revision E (August 2021)

Page

• Changed OPA2375 VSSOP (DGK) package from Preview to Active ................................................................1

• Removed preview tag for the VSSOP (DGK) package in the Device Comparison Table section...................... 4

• Added VSSOP Package thermal data for OPA2375 in the Thermal Information for Dual Channel section....... 7

Changes from Revision C (June 2020) to Revision D (February 2021)

Page

• Updated the numbering format for tables, figures, and cross-references throughout the document..................1

• Changed Operating temperature from 125 to 150 in Absolute Maximum Ratings ........................................... 7

• Added Junction temperature spec to Absolute Maximum Ratings .................................................................... 7

• Removed OPA375 Table of Graphs and OPA2375 Table of Graphs tables from the Specifications section....12

• Removed Related Links section from the Device and Documentation Support section...................................39

Changes from Revision B (January 2020) to Revision C (June 2020)

Page

• Changed OPA2375S X2QFN (RUG) package from Preview to Active ..............................................................1

• Added X2QFN Package Drawing and Pin Functions for OPA2375S in Pin Configuration and Functions

section................................................................................................................................................................ 5

• Changed typical input current noise density value from 2 fA√HZ to 23 fA√Hz................................................... 9

• Changed total supply voltage total from 5V to 5.5V in Electrical Characteristics condition statement............... 9

• Deleted "Vs = 2.25 V to 5.5 V" test conditions for common-mode rejection ratio parameter in Electrical

Characteristics ................................................................................................................................................... 9

Changes from Revision A (January 2019) to Revision B (January 2020)

Page

• Changed Low Broadband Noise specification in Features section to match OPA2375 specification ................1

• Added THD+N specification to Features section................................................................................................1

• Added supply range definition for OPA2375 and OPA4375 in Features section................................................ 1

• Changed Noise Spectral Density vs Frequency plot on front page to the OPA2375 noise plot......................... 1

OPA375, OPA2375

SBOS886E – NOVEMBER 2017 – REVISED AUGUST 2021

www.ti.com

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