Product details

Architecture FET / CMOS Input, Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 4.75 Total supply voltage (Max) (+5V=5, +/-5V=10) 27 GBW (Typ) (MHz) 70 BW @ Acl (MHz) 140 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 200 Vn at flatband (Typ) (nV/rtHz) 6.3 Vn at 1 kHz (Typ) (nV/rtHz) 9.5 Iq per channel (Typ) (mA) 3.7 Vos (offset voltage @ 25 C) (Max) (mV) 0.5 Rail-to-rail In, Out Features C-Load Drive Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 100 Input bias current (Max) (pA) 20 Offset drift (Typ) (uV/C) 2.5 Output current (Typ) (mA) 75 2nd harmonic (dBc) 101 3rd harmonic (dBc) 101 Frequency of harmonic distortion measurement (MHz) 1
Architecture FET / CMOS Input, Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 4.75 Total supply voltage (Max) (+5V=5, +/-5V=10) 27 GBW (Typ) (MHz) 70 BW @ Acl (MHz) 140 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 200 Vn at flatband (Typ) (nV/rtHz) 6.3 Vn at 1 kHz (Typ) (nV/rtHz) 9.5 Iq per channel (Typ) (mA) 3.7 Vos (offset voltage @ 25 C) (Max) (mV) 0.5 Rail-to-rail In, Out Features C-Load Drive Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 100 Input bias current (Max) (pA) 20 Offset drift (Typ) (uV/C) 2.5 Output current (Typ) (mA) 75 2nd harmonic (dBc) 101 3rd harmonic (dBc) 101 Frequency of harmonic distortion measurement (MHz) 1
SOIC (D) 8 19 mm² 4.9 x 3.9 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 SOT-SC70 (DCK) 5 4 mm² 2 x 2.1
  • Gain-Bandwidth Product: 70 MHz
  • Small-Signal Bandwidth: 140 MHz
  • Slew Rate: 200 V/µs
  • Wide Supply Range: 4.75 V to 27 V
  • Low Noise:
    • Input Voltage Noise: 6.3 nV/√ Hz (f = 500 kHz)
    • Input Current Noise: 5 fA/√ Hz (f = 10 kHz)
  • Rail-to-Rail Input and Output:
    • FET Input Stage: 2-pA Input Bias Current (Typical)
    • High Linear Output Current: 75 mA
  • Input Offset: ±500 µV (Maximum)
  • Offset Drift: ±2.5 µV/°C (Typical)
  • Low Power: 3.7 mA/Channel
  • Extended Temperature Operation: –40°C to +125°C
  • Dual-Channel Version: OPA2810
  • Gain-Bandwidth Product: 70 MHz
  • Small-Signal Bandwidth: 140 MHz
  • Slew Rate: 200 V/µs
  • Wide Supply Range: 4.75 V to 27 V
  • Low Noise:
    • Input Voltage Noise: 6.3 nV/√ Hz (f = 500 kHz)
    • Input Current Noise: 5 fA/√ Hz (f = 10 kHz)
  • Rail-to-Rail Input and Output:
    • FET Input Stage: 2-pA Input Bias Current (Typical)
    • High Linear Output Current: 75 mA
  • Input Offset: ±500 µV (Maximum)
  • Offset Drift: ±2.5 µV/°C (Typical)
  • Low Power: 3.7 mA/Channel
  • Extended Temperature Operation: –40°C to +125°C
  • Dual-Channel Version: OPA2810

The OPA810 is a single-channel, field-effect transistor (FET)-input, voltage-feedback operational amplifier with bias current in the picoampere (pA) range. The OPA810 is unity-gain stable with a small-signal, unity-gain bandwidth of 140 MHz, and offers excellent DC precision and dynamic AC performance at a low quiescent current (IQ) of 3.7 mA per channel. The OPA810 is fabricated on Texas Instrument’s proprietary, high-speed SiGe BiCMOS process and achieves significant performance improvements over comparable FET-input amplifiers at similar levels of quiescent power. With a gain-bandwidth product (GBWP) of 70 MHz, slew rate of 200 V/µs, and low-noise voltage of 6.3 nV/√ Hz, the OPA810 is well suited for use in a wide range of high-fidelity data acquisition and signal processing applications.

The OPA810 features rail-to-rail inputs and outputs and delivers 75 mA of linear output current, suitable for driving optoelectronics components and analog-to-digital converter (ADC) inputs or buffering digital-to-analog converter (DAC) outputs into heavy loads.

The OPA810 is rated over the extended industrial temperature range of –40°C to +125°C. The OPA2810 is a dual-channel variant of this device, available in 8-pin SOIC, SOT-23, and VSSOP packages.

The OPA810 is a single-channel, field-effect transistor (FET)-input, voltage-feedback operational amplifier with bias current in the picoampere (pA) range. The OPA810 is unity-gain stable with a small-signal, unity-gain bandwidth of 140 MHz, and offers excellent DC precision and dynamic AC performance at a low quiescent current (IQ) of 3.7 mA per channel. The OPA810 is fabricated on Texas Instrument’s proprietary, high-speed SiGe BiCMOS process and achieves significant performance improvements over comparable FET-input amplifiers at similar levels of quiescent power. With a gain-bandwidth product (GBWP) of 70 MHz, slew rate of 200 V/µs, and low-noise voltage of 6.3 nV/√ Hz, the OPA810 is well suited for use in a wide range of high-fidelity data acquisition and signal processing applications.

The OPA810 features rail-to-rail inputs and outputs and delivers 75 mA of linear output current, suitable for driving optoelectronics components and analog-to-digital converter (ADC) inputs or buffering digital-to-analog converter (DAC) outputs into heavy loads.

The OPA810 is rated over the extended industrial temperature range of –40°C to +125°C. The OPA2810 is a dual-channel variant of this device, available in 8-pin SOIC, SOT-23, and VSSOP packages.

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Technical documentation

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Type Title Date
* Data sheet OPA810 140-MHz, Rail-to-Rail Input/Output, FET-Input Operational Amplifier datasheet (Rev. D) 21 Jul 2020
Design guide LCR Meter Analog Front-End Reference Design (Rev. B) PDF | HTML 21 Dec 2021
Application note Optimizing LCR Meter Front-End Design for Accurate Impedance Measurements PDF | HTML 20 Jan 2021
Design guide Cascaded high-gain active LPF reference design for high-impedance applications (Rev. B) PDF | HTML 26 Sep 2019
Application note Noise Analysis for High Speed Op Amps (Rev. A) 17 Jan 2005

Design & development

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Evaluation board

DEM-OPA-SO-1A — Single op-amp evaluation module for SO-8 package

The DEM-OPA-SO-1A demonstration fixture 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 8-lead SOIC (D) package.

User guide: PDF
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Simulation model

Impedance Spectroscopy TINA-TI Reference Design (Differential)

SBOMBM0.TSC (94 KB) - TINA-TI Reference Design
Simulation model

OPA810 PSpice Model (Rev. A)

SBOMB73A.ZIP (25 KB) - PSpice Model
Simulation model

TINA-TI Reference Circuit (Rev. B)

SBOMB00B.TSC (3670 KB) - TINA-TI Spice Model
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 operational-amplifier (...)
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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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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 (...)
User guide: PDF
Package Pins Download
SC70 (DCK) 5 View options
SOIC (D) 8 View options
SOT-23 (DBV) 5 View options

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