Table of Contents

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

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

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

4 Device Comparison Table...............................................2

5 Pin Configuration and Functions...................................3

6 Specifications.................................................................. 4

6.1 Absolute Maximum Ratings........................................ 4

6.2 ESD Ratings............................................................... 4

6.3 Recommended Operating Conditions.........................4

6.4 Thermal Information....................................................4

6.5 Electrical Characteristics ............................................5

6.6 Typical Characteristics................................................ 7

7 Parameter Measurement Information............................ 9

8 Detailed Description......................................................10

8.1 Overview................................................................... 10

8.2 Functional Block Diagram......................................... 10

8.3 Feature Description...................................................11

8.4 Device Functional Modes..........................................12

9 Application and Implementation.................................. 12

9.1 Power Supply Recommendations.............................13

9.2 Layout....................................................................... 14

10 Device and Documentation Support..........................16

10.1 Device Support....................................................... 16

10.2 Documentation Support.......................................... 16

10.3 Receiving Notification of Documentation Updates..16

10.4 Support Resources................................................. 16

10.5 Trademarks.............................................................16

10.6 Electrostatic Discharge Caution..............................16

10.7 Glossary..................................................................16

11 Revision History.......................................................... 16

12 Mechanical, Packaging, and Orderable

Information.................................................................... 17

4 Device Comparison Table

DEVICE

INPUT TYPE

MINIMUM STABLE

GAIN (V/V)

VOLTAGE NOISE

(nV/√Hz)

CURRENT NOISE

(pA/√Hz)

INPUT

CAPACITANCE (pF)

GAIN BANDWIDTH

(GHz)

OPA955

Bipolar

7

0.79

0.55

1.1

11

OPA855

Bipolar

7

0.98

2.5

0.8

8

OPA856

Bipolar

1

0.9

2.5

1.1

1.1

OPA858

CMOS

7

2.5

0.055

0.8

5.5

OPA859

CMOS

1

3.3

0.055

0.8

0.9

LMH6629

Bipolar

10

0.69

2.6

2.1

4

OPA818

JFET

7

2.2

0.145

2.4

2.7

OPA955

SLOSEE6 – JULY 2026

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