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High-speed op amps (GBW ≥ 50 MHz)

OPA2863A

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Dual, high-precision, low-power, 105MHz, 12V RRIO voltage-feedback amplifier

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Data sheet

OPA2863A

ACTIVE
Data sheet Order now

Product details

Architecture Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.6 GBW (typ) (MHz) 50 BW at Acl (MHz) 105 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 100 Vn at flatband (typ) (nV√Hz) 5.9 Vn at 1 kHz (typ) (nV√Hz) 5.9 Iq per channel (typ) (mA) 0.75 Vos (offset voltage at 25°C) (max) (mV) 0.095 Rail-to-rail In, Out Features Output short-circuit protection, Overload power limit, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 120 Input bias current (max) (pA) 730000 Offset drift (typ) (µV/°C) 0.3 Iout (typ) (mA) 30 2nd harmonic (dBc) 129 3rd harmonic (dBc) -138 Frequency of harmonic distortion measurement (MHz) 0.02
Architecture Voltage FB Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.6 GBW (typ) (MHz) 50 BW at Acl (MHz) 105 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 100 Vn at flatband (typ) (nV√Hz) 5.9 Vn at 1 kHz (typ) (nV√Hz) 5.9 Iq per channel (typ) (mA) 0.75 Vos (offset voltage at 25°C) (max) (mV) 0.095 Rail-to-rail In, Out Features Output short-circuit protection, Overload power limit, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 120 Input bias current (max) (pA) 730000 Offset drift (typ) (µV/°C) 0.3 Iout (typ) (mA) 30 2nd harmonic (dBc) 129 3rd harmonic (dBc) -138 Frequency of harmonic distortion measurement (MHz) 0.02
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) USON (DSN) 10 9 mm² (3 mm × 3 mm)
  • Gain-bandwidth product: 50MHz
  • High precision:
    • Input offset voltage: 95µV (maximum)
    • Offset drift: 1.2µV/°C (maximum)
  • Low power:
    • Quiescent current: 800µA/ch (typical)
    • Supply voltage: 2.7V to 12.6V
  • Input voltage noise: 6.3nV/√Hz
  • Slew rate: 100V/µs
  • Rail-to-rail input and output
  • HD2 and HD3:
    • –129dBc and –138dBc at 20kHz (2VPP)
  • Operating temperature range: –40°C to +125°C
  • Additional features:
    • Overload power limit
    • Output short-circuit protection
  • Gain-bandwidth product: 50MHz
  • High precision:
    • Input offset voltage: 95µV (maximum)
    • Offset drift: 1.2µV/°C (maximum)
  • Low power:
    • Quiescent current: 800µA/ch (typical)
    • Supply voltage: 2.7V to 12.6V
  • Input voltage noise: 6.3nV/√Hz
  • Slew rate: 100V/µs
  • Rail-to-rail input and output
  • HD2 and HD3:
    • –129dBc and –138dBc at 20kHz (2VPP)
  • Operating temperature range: –40°C to +125°C
  • Additional features:
    • Overload power limit
    • Output short-circuit protection

The OPA863A and OPA2863A devices (OPAx863A) are low-power, unity-gain stable, rail-to-rail input and output, voltage-feedback operational amplifiers. These devices are trimmed in package to offer high-precision performance with a maximum input offset voltage of 95µV and offset drift of 1.2µV/°C for high accuracy measurements over temperature.

Consuming only 800µA per channel, the OPAx863A offer a gain-bandwidth product of 50MHz, slew rate of 100V/µs, and a voltage noise density of 6.3nV/√Hz. The rail-to-rail input stage with 2.7V 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 excellent performance with wide-input dynamic range.

The OPAx863A 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 these devices conducive to ruggedized environments.

The OPA863A and OPA2863A devices (OPAx863A) are low-power, unity-gain stable, rail-to-rail input and output, voltage-feedback operational amplifiers. These devices are trimmed in package to offer high-precision performance with a maximum input offset voltage of 95µV and offset drift of 1.2µV/°C for high accuracy measurements over temperature.

Consuming only 800µA per channel, the OPAx863A offer a gain-bandwidth product of 50MHz, slew rate of 100V/µs, and a voltage noise density of 6.3nV/√Hz. The rail-to-rail input stage with 2.7V 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 excellent performance with wide-input dynamic range.

The OPAx863A 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 these devices conducive to ruggedized environments.
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Technical documentation

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* Data sheet OPAx863A High-Precision, 105MHz, Rail-to-Rail Input/Output Amplifiers datasheet (Rev. G) PDF | HTML Dec 24, 2024
Circuit design Circuit for driving high-voltage SAR ADC with a buffered instrumentation (Rev. A) PDF | HTML Sep 20, 2024
Circuit design Inverting circuit for high-to-low voltage level translation to drive ADC (Rev. A) PDF | HTML Sep 19, 2024
Circuit design Driving a low-voltage single-ended SAR ADC circuit with high-voltage input (Rev. A) PDF | HTML Sep 19, 2024
Application brief How to Design MFB Filters with Amplifier Bandwidth Limitations PDF | HTML Jan 4, 2024
Certificate DEM-OPA-DSN-EVM EU RoHS Declaration of Conformity (DoC) Dec 6, 2021
Application brief Higher accuracy using an external amplifier in ultrasonic flow measurement Feb 5, 2019
Design guide High-Speed, High-Side Current Sense Reference Design Jul 19, 2017
Application note ADC Input Protection Sep 4, 2013
Application note A Walk Along the Signal Path (High-Speed Signal Path) Mar 30, 2005

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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Simulation model

OPA2863A PSpice Model (Rev. H)

SBOMBG1H.ZIP (22 KB) - PSpice model
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Simulation model

OPA2863A TINA-TI Reference Design (Rev. D)

SBOMBH9D (23 KB) - TINA-TI reference design
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Calculation tool

ANALOG-ENGINEER-CALC — PC software 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 operational-amplifier (...)

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Package Pins CAD symbols, footprints & 3D models
VSSOP (DGK) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
USON (DSN) 10 Ultra Librarian
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