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Product details

Parameters

Output current (Typ) (mA) 45 GBW (Typ) (MHz) 6.5 Slew rate (Typ) (V/us) 32 Vos (offset voltage @ 25 C) (Max) (mV) 3.4 Offset drift (Typ) (uV/C) 4 Iq per channel (Typ) (mA) 3.2 Features Shutdown Rating Catalog Operating temperature range (C) -40 to 85 CMRR (Typ) (dB) 120 Rail-to-rail No open-in-new Find other Power op amps

Package | Pins | Size

HSOIC (DDA) 8 19 mm² 4.9 x 3.9 open-in-new Find other Power op amps

Features

  • Wide power-supply range:
    • ±6 V to ±75 V
    • 12 V to 150 V
  • High-output load drive: IO ±45 mA
  • Current limit protection
  • Thermal protection
  • Status flag
  • Independent output disable
  • Gain bandwidth: 6.5 MHz
  • Slew rate: 32 V/µs
  • Wide temperature range: –40°C to +85°C
  • 8-pin HSOIC (SO PowerPAD™) package

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Description

The OPA455 is a high-voltage (150-V), high current drive (45-mA), unity-gain stable operational amplifier with a gain-bandwidth product of 6.5 MHz and slew rate of 32 V/us. As a result of the amplifier wide output range, this device is an excellent choice for high-voltage piezo driving, avalance photodiode biasing, and high-voltage Howland current pump or voltage output stages.

The OPA455 is internally protected against overtemperature conditions and current overloads. The device is fully specified to perform over a wide power-supply range of ±6 V to ±75 V, or on a single supply of 12 V to 150 V. The status flag is an open-drain output that allows the device to be easily referenced to standard, low-voltage, logic circuitry. This high-voltage operational amplifier provides excellent accuracy and wide output swing, and is free from phase-inversion problems that are often found in similar amplifiers.

The output can be disabled using the enable-disable (E/D) pin. The E/D pin has a common return pin to allow for easy interface to low-voltage logic circuitry. This disable is accomplished without disturbing the input signal path, not only saving power but also protecting the load.

 

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Similar but not functionally equivalent to the compared device:
OPA462 ACTIVE 180-V, wide bandwidth (6.5 MHz), high-slew rate (25 V/µs) unity-gain stable op amp For higher supply voltages consider the OPA462

Technical documentation

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Type Title Date
* Datasheet OPA455 High-Voltage (150-V), Wide-Bandwidth (6.5-MHz), High Output Current (45-mA), Unity-Gain Stable Op Amp datasheet Oct. 27, 2020
More literature OPA455EVM EU Declaration of Conformity (DoC) Jul. 13, 2020
User guide OPA455 EVM User's Guide Feb. 05, 2020

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
10
Description

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost
EVALUATION BOARD Download
Description
The DIYAMP-EVM is a unique evaluation module (EVM) family that provides engineers and do it yourselfers (DIYers) with real-world amplifier circuits, enabling you to quickly evaluate design concepts and verify simulations. It is available in three industry-standard packages (SC70, SOT23, SOIC) and 12 (...)
Features
  • 3 packages to choose from: SC70-5, SOT23-5 and SOIC-8
  • 12 circuit configurations to choose from: Noninverting, Inverting, Active Filters, Difference Amp, Comparator and more!
  • Dual and single supply configurations
  • PCB designed for High performance: Optimized for each function
  • Multiple interface options (...)
EVALUATION BOARD Download
99
Description
The OPA455EVM evaluation module (EVM) provides a platform to evaluate the OPA455 high-voltage, high-current operational amplifier. Multiple component footprints allow most common circuit configurations including Howland Current Pump.
Features
  • Flexible design allows a wide variety of circuit configurations
  • Easy access to pertinent nodes with test points and terminal blocks
  • Includes protection against power supply sequencing and inductive load kickback
  • Internal power plane provides adequate heat sinking for most applications
EVALUATION BOARD Download
Description

The Universal OPAMPEVM is a series of general purpose blank circuit boards that simplify prototyping circuits for a variety of IC package types. The evaluation module board design allows many different circuits to be constructed easily and quickly. Five models are offered with each targeted for (...)

Design tools & simulation

SIMULATION MODEL Download
SBOMB80.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOMB81.ZIP (13 KB) - PSpice Model
SIMULATION MODEL Download
SBOMB82.TSC (307 KB) - TINA-TI Reference Design
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI 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 (...)
CALCULATION TOOL Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — 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 (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

CAD/CAE symbols

Package Pins Download
SO PowerPAD (DDA) 8 View options

Ordering & quality

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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