Product details

Architecture Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 12.6 GBW (Typ) (MHz) 50 BW @ Acl (MHz) 110 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 105 Vn at flatband (Typ) (nV/rtHz) 5.9 Vn at 1 kHz (Typ) (nV/rtHz) 5.9 Iq per channel (Typ) (mA) 0.7 Vos (offset voltage @ 25 C) (Max) (mV) 1.3 Rail-to-rail In, Out Features Shutdown, Overload power limit, Output short-circuit protection Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 120 Input bias current (Max) (pA) 730000 Offset drift (Typ) (uV/C) 0.9 Output current (Typ) (mA) 30 2nd harmonic (dBc) -129 3rd harmonic (dBc) -138 @ MHz 0.02
Architecture Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 12.6 GBW (Typ) (MHz) 50 BW @ Acl (MHz) 110 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 105 Vn at flatband (Typ) (nV/rtHz) 5.9 Vn at 1 kHz (Typ) (nV/rtHz) 5.9 Iq per channel (Typ) (mA) 0.7 Vos (offset voltage @ 25 C) (Max) (mV) 1.3 Rail-to-rail In, Out Features Shutdown, Overload power limit, Output short-circuit protection Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 120 Input bias current (Max) (pA) 730000 Offset drift (Typ) (uV/C) 0.9 Output current (Typ) (mA) 30 2nd harmonic (dBc) -129 3rd harmonic (dBc) -138 @ MHz 0.02
SOT-23 (DBV) 6
  • Wide-bandwidth
    • Unity-gain bandwidth: 110-MHz (AV= 1 V/V)
    • Gain-bandwidth product: 50-MHz
  • Low power
    • Quiescent current: 700-µA/ch (typical)
    • Power down mode: 1.4-µA (maximum)
    • Supply voltage: 2.7-V to 12.6-V
  • Input voltage noise: 5.9-nV/√ Hz
  • Slew rate: 105-V/µs
  • Rail-to-rail input and output
  • HD2/HD3: –129 dBc/–138 dBc at 20 kHz (2-VPP)
  • Operating temperature range: –40°C to +125°C
  • Additional features:
    • Overload power limit
    • Output short-circuit protection
  • Wide-bandwidth
    • Unity-gain bandwidth: 110-MHz (AV= 1 V/V)
    • Gain-bandwidth product: 50-MHz
  • Low power
    • Quiescent current: 700-µA/ch (typical)
    • Power down mode: 1.4-µA (maximum)
    • Supply voltage: 2.7-V to 12.6-V
  • Input voltage noise: 5.9-nV/√ Hz
  • Slew rate: 105-V/µs
  • Rail-to-rail input and output
  • HD2/HD3: –129 dBc/–138 dBc at 20 kHz (2-VPP)
  • Operating temperature range: –40°C to +125°C
  • Additional features:
    • Overload power limit
    • Output short-circuit protection

The OPAx863 devices are low-power, unity-gain stable, rail-to-rail input or output, voltage-feedback operational amplifiers designed to operate over a power supply range of 2.7-V to 12.6-V. Consuming only 700-µA per channel, the OPAx863 devices offer a gain-bandwidth product of 50-MHz, slew rate of 105-V/µs with a voltage noise density of 5.9-nV/√ Hz.

The rail-to-rail input stage with 2.7-V supply operation is useful in portable battery powered applications. The differential input stages are well matched for gain-bandwidth product and noise across the full input common-mode voltage range, enabling superior performance with wide-input dynamic range. The OPA863 features a power-down (PD) mode with a PD quiescent current of 1.4-µA (maximum) with turn-on or turn-off within 6.5-µs (typical).

The OPAx863 devices include overload power limiting to limit the increase in quiescent current with saturated outputs, thereby preventing excessive dissipation critical in battery-powered systems. The output stage is short-circuit protected, making it a rugged amplifier for general-purpose usage.

The OPAx863 devices are low-power, unity-gain stable, rail-to-rail input or output, voltage-feedback operational amplifiers designed to operate over a power supply range of 2.7-V to 12.6-V. Consuming only 700-µA per channel, the OPAx863 devices offer a gain-bandwidth product of 50-MHz, slew rate of 105-V/µs with a voltage noise density of 5.9-nV/√ Hz.

The rail-to-rail input stage with 2.7-V supply operation is useful in portable battery powered applications. The differential input stages are well matched for gain-bandwidth product and noise across the full input common-mode voltage range, enabling superior performance with wide-input dynamic range. The OPA863 features a power-down (PD) mode with a PD quiescent current of 1.4-µA (maximum) with turn-on or turn-off within 6.5-µs (typical).

The OPAx863 devices include overload power limiting to limit the increase in quiescent current with saturated outputs, thereby preventing excessive dissipation critical in battery-powered systems. The output stage is short-circuit protected, making it a rugged amplifier for general-purpose usage.

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Technical documentation

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Type Title Date
* Data sheet OPAx863 Low-Power, 110-MHz, Rail-to-Rail Input and Output, Voltage-Feedback Amplifier datasheet (Rev. D) 16 Jul 2021
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
Technical article How to minimize filter loss when you drive an ADC 20 Oct 2016
User guide DEM-OPA-SOT-1A User's Guide (Rev. B) 12 Apr 2012
Application note Noise Analysis for High Speed Op Amps (Rev. A) 17 Jan 2005

Design & development

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Evaluation board

DEM-OPA-SOT-1A — Single op amp evaluation module for SOT23-5/6 package

The DEM-OPA-SOT-1A is a demonstration fixture that helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the SOT(DBV) package.

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Simulation model

OPA863 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 (...)
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 (...)
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 (...)
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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