SBOS940B
May 2019 – December 2025
OPA818
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics: VS = ±5 V
6.7
Typical Characteristics: VS = 6 V
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Input and ESD Protection
7.3.2
Feedback Pin
7.3.3
Decompensated Architecture With Wide Gain-Bandwidth Product
7.3.4
Low Input Capacitance
7.4
Device Functional Modes
7.4.1
Split-Supply Operation (+4/–2 V to ±6.5 V)
7.4.2
Single-Supply Operation (6 V to 13 V)
8
Application and Implementation
8.1
Application Information
8.1.1
Wideband, Noninverting Operation
8.1.2
Wideband, Transimpedance Design Using the OPA818
8.2
Typical Applications
8.2.1
High-Bandwidth, 100-kΩ Gain Transimpedance Design
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curves
8.2.2
Noninverting Gain of 2 V/V
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.1.1
Thermal Considerations
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
Development Support
9.2
Documentation Support
9.2.1
Related Documentation
9.3
Receiving Notification of Documentation Updates
9.4
Support Resources
9.5
Trademarks
9.6
Electrostatic Discharge Caution
9.7
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
1
Features
High speed:
Gain-bandwidth product (GBWP): 2.7GHz
Bandwidth (G = 7V/V): 765MHz
Large-signal bandwidth (2V
PP
): 400MHz
Slew rate: 1400V/µs
Decompensated gain: 7V/V stable
Low noise:
Input voltage noise: 2.2nV/√Hz
Input current noise: 3fA/√Hz (f = 10kHz)
Input bias current: 4pA (typical)
Low input capacitance:
Common-mode: 1.9pF
Differential mode: 0.5pF
Low distortion (G = 7V/V, R
L
= 1kΩ, V
O
= 2V
PP
):
HD2, HD3 at 1MHz: –104dBc, –108dBc
HD2, HD3 at 50MHz: –57dBc, –72dBc
Wide supply range: 6V to 13V
Output swing: 8V
PP
(V
S
= 10V)
Supply current: 27.7mA
Shutdown supply current: 27µA
Performance upgrade to
OPA657