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High-speed op amps (GBW>=50MHz)

OPA818

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2.7-GHz, 13-V, decompensated 7-V/V, FET-input operational amplifier

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Data sheet
2.7-GHz, 13-V, decompensated 7-V/V, FET-input operational amplifier

OPA818

ACTIVE
Data sheet Order now

Product details

Architecture FET / CMOS Input, Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 6 Total supply voltage (Max) (+5V=5, +/-5V=10) 13 GBW (Typ) (MHz) 2700 BW @ Acl (MHz) 765 Acl, min spec gain (V/V) 7 Slew rate (Typ) (V/us) 1400 Vn at flatband (Typ) (nV/rtHz) 2.2 Vn at 1 kHz (Typ) (nV/rtHz) 8.5 Iq per channel (Typ) (mA) 27.7 Vos (offset voltage @ 25 C) (Max) (mV) 1.25 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 90 Input bias current (Max) (pA) 25 Offset drift (Typ) (uV/C) 3 Output current (Typ) (mA) 60 2nd harmonic (dBc) -84 3rd harmonic (dBc) -106 @ MHz 1
Architecture FET / CMOS Input, Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 6 Total supply voltage (Max) (+5V=5, +/-5V=10) 13 GBW (Typ) (MHz) 2700 BW @ Acl (MHz) 765 Acl, min spec gain (V/V) 7 Slew rate (Typ) (V/us) 1400 Vn at flatband (Typ) (nV/rtHz) 2.2 Vn at 1 kHz (Typ) (nV/rtHz) 8.5 Iq per channel (Typ) (mA) 27.7 Vos (offset voltage @ 25 C) (Max) (mV) 1.25 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 90 Input bias current (Max) (pA) 25 Offset drift (Typ) (uV/C) 3 Output current (Typ) (mA) 60 2nd harmonic (dBc) -84 3rd harmonic (dBc) -106 @ MHz 1
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WSON (DRG) 8 9 mm² 3 x 3
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Technical documentation

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Type Title Date
* Data sheet OPA818 2.7-GHz, High-Voltage, FET-Input, Low Noise, Operational Amplifier datasheet (Rev. A) 07 Jan 2020
Application note High Speed ADCs and Amplifiers for Flow Cytometry Applications 12 Oct 2020
Technical article 3 common questions when designing with high-speed amplifiers 17 Jul 2020
User guide OPA818DRGEVM Evaluation Module (Rev. A) 26 Feb 2020
Technical article How to reduce distortion in high-voltage, high-frequency signal generation for AWGs 30 Oct 2018
Technical article What are the advantages of using JFET-input amplifiers in high-speed applications? 19 Jun 2018
Technical article Unique active mux capability combines buffer and switch into one solution 10 Oct 2017
Application note Noise Analysis for High Speed Op Amps (Rev. A) 17 Jan 2005

Design & development

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Evaluation board

OPA818DRGEVM — OPA818 Evaluation Module

The OPA818DRG EVM is an evaluation module for the single OPA818 in the DRG (8-pin WSON) package. The OPA818DRG EVM is designed to quickly demonstrate the functionality and versatility of the amplifier. The EVM is ready to connect to power, signal source, and test instruments by using on-board (...)
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Simulation model

OPA818 TINA-TI Spice Model (Rev. A)

SBOMAZ1A.TSM (14 KB) - TINA-TI Spice Model
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Simulation model

OPA818 Unencrypted TINA-TI Reference Design Package (Rev. A)

SBOMB21A.TSC (172 KB) - TINA-TI Reference Design
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Simulation model

PSPICE Circuit Containing OPA818 Model (Rev. A)

SBOMB74A.ZIP (69 KB) - PSpice Model
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
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Calculation tool

VOLT-DIVIDER-CALC — Voltage Divider Determines A Set of Resistors for a Voltage Divider

VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.

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