Product details

Architecture Voltage FB Number of channels (#) 2 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) 1 Output current (Typ) (mA) 30 2nd harmonic (dBc) -129 3rd harmonic (dBc) -138 @ MHz 0.02
Architecture Voltage FB Number of channels (#) 2 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) 1 Output current (Typ) (mA) 30 2nd harmonic (dBc) -129 3rd harmonic (dBc) -138 @ MHz 0.02
VSSOP (DGK) 8 15 mm² 3 x 4.9
  • 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: 1.5-µA (maximum, VS= 3 V)
    • 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: 1.5-µA (maximum, VS= 3 V)
    • 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 and 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 rail-to-rail input stage is 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 (IQ) of 1.5-µA (maximum) with turn-on or turn-off within 6.5-µs with a 3-V supply.

The OPAx863 devices include overload power limiting to limit the increase in IQ with saturated outputs, thereby preventing excessive power dissipation in power conscious battery-operated systems. The output stage is short-circuit protected, making it conducive to ruggedized environments.

The OPAx863 devices are low-power, unity-gain stable, rail-to-rail input and 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 rail-to-rail input stage is 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 (IQ) of 1.5-µA (maximum) with turn-on or turn-off within 6.5-µs with a 3-V supply.

The OPAx863 devices include overload power limiting to limit the increase in IQ with saturated outputs, thereby preventing excessive power dissipation in power conscious battery-operated systems. The output stage is short-circuit protected, making it conducive to ruggedized environments.

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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 Amplifier datasheet (Rev. E) 22 Nov 2021
User guide OPA2863DGK Evaluation Module 07 Oct 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
Technical article How to minimize filter loss when you drive an ADC 20 Oct 2016
User guide DEM-OPA-MSOP-2A User's Guide (Rev. A) 25 May 2006

Design & development

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Evaluation board

DEM-OPA-DSN-EVM — Evaluation module for dual OP AMP in DSN package

The DEM-OPA-DSN-EVM evaluation module (EVM) is a demonstration fixture that helps designers evaluate the operation and performance of  Texas Instruments Incorporated high-speed, wide bandwidth operational amplifiers. This unpopulated PC board is compatible with dual channel amplifier products (...)

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Evaluation board

DEM-OPA-MSOP-2A — Dual op amp evaluation module for MSOP-8 package

The DEM-OPA-MSOP-2A demonstration fixture helps designers evaluate the operation and performance of TI's dual, high speed, wideband operational amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead MSOP (DGK) package.
 
For more information on these types of op amps, (...)
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Evaluation board

OPA2863DGKEVM — Evaluation module for OPA2863 very low-power BJT-input, wide-supply range, RRIO high-speed op amp

The OPA2863DGKEVM is an evaluation module (EVM) for the dual-channel OPA2863 amplifier in the DGK (VSSOP-8) package. The OPA2863 is a low-power, unity-gain stable, rail-to-rail input/output, voltage-feedback operational amplifier designed to operate over a power-supply range of 2.7 V to 12.6 V. (...)
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Simulation model

OPA2863 PSpice Model (Rev. C)

SBOMBG1C.ZIP (23 KB) - PSpice Model
Simulation model

OPA2863 TINA-TI Reference Design (Rev. B)

SBOMBH9B.TSC (23 KB) - TINA-TI Reference Design
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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