Product details

Architecture FET / CMOS Input, Voltage FB Number of channels (#) 2 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) 105 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 192 Vn at flatband (Typ) (nV/rtHz) 6 Vn at 1 kHz (Typ) (nV/rtHz) 16.43 Iq per channel (Typ) (mA) 3.6 Vos (offset voltage @ 25 C) (Max) (mV) 1.5 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 Output current (Typ) (mA) 75 2nd harmonic (dBc) 99 3rd harmonic (dBc) 104 Frequency of harmonic distortion measurement (MHz) 1
Architecture FET / CMOS Input, Voltage FB Number of channels (#) 2 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) 105 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 192 Vn at flatband (Typ) (nV/rtHz) 6 Vn at 1 kHz (Typ) (nV/rtHz) 16.43 Iq per channel (Typ) (mA) 3.6 Vos (offset voltage @ 25 C) (Max) (mV) 1.5 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 Output current (Typ) (mA) 75 2nd harmonic (dBc) 99 3rd harmonic (dBc) 104 Frequency of harmonic distortion measurement (MHz) 1
SOIC (D) 8 19 mm² 4.9 x 3.9 SOT-23 (DCN) 8 8 mm² 2.9 x 2.8 VSSOP (DGK) 8 15 mm² 3 x 4.9
  • Gain-bandwidth product: 70 MHz
  • Small-signal bandwidth: 105 MHz
  • Slew rate: 192 V/µs
  • Wide supply range: 4.75 V to 27 V
  • Low noise:
    • Input voltage noise: 6 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: ±1.5 mV (maximum)
  • Offset drift: ±2 µV/°C (typical)
  • Low power: 3.6 mA/channel
  • Extended temperature operation:
    –40°C to +125°C
  • Single-channel version: OPA810
  • Gain-bandwidth product: 70 MHz
  • Small-signal bandwidth: 105 MHz
  • Slew rate: 192 V/µs
  • Wide supply range: 4.75 V to 27 V
  • Low noise:
    • Input voltage noise: 6 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: ±1.5 mV (maximum)
  • Offset drift: ±2 µV/°C (typical)
  • Low power: 3.6 mA/channel
  • Extended temperature operation:
    –40°C to +125°C
  • Single-channel version: OPA810

The OPA2810 is a dual-channel, FET-input, voltage-feedback operational amplifier with low input bias current. The OPA2810 is unity-gain stable with a small-signal unity-gain bandwidth of 105 MHz, and offers excellent DC precision and dynamic AC performance at a low quiescent current (IQ) of 3.6 mA per channel (typical). The OPA2810 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 192 V/µs, and voltage low noise of 6 nV/√Hz, the OPA2810 is well suited for use in a wide range of high fidelity data acquisition and signal processing applications.

The OPA2810 is characterized to operate over a wide supply range of 4.75 V to 27 V, and features rail-to-rail inputs and outputs. The OPA2810 amplifier delivers 75 mA of linear output current, suitable for driving optoelectronics components and analog-to-digital converter (ADC) inputs or buffering DAC outputs into heavy loads.

The OPA2810 is available in 8-pin SOIC, SOT23, and VSSOP packages and is rated to work over the extended industrial temperature range of –40°C to +125°C. The OPA810 is a single-channel variant of this device, available in 8-pin SOIC and 5-pin SOT-23 and SC70 packages.

The OPA2810 is a dual-channel, FET-input, voltage-feedback operational amplifier with low input bias current. The OPA2810 is unity-gain stable with a small-signal unity-gain bandwidth of 105 MHz, and offers excellent DC precision and dynamic AC performance at a low quiescent current (IQ) of 3.6 mA per channel (typical). The OPA2810 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 192 V/µs, and voltage low noise of 6 nV/√Hz, the OPA2810 is well suited for use in a wide range of high fidelity data acquisition and signal processing applications.

The OPA2810 is characterized to operate over a wide supply range of 4.75 V to 27 V, and features rail-to-rail inputs and outputs. The OPA2810 amplifier delivers 75 mA of linear output current, suitable for driving optoelectronics components and analog-to-digital converter (ADC) inputs or buffering DAC outputs into heavy loads.

The OPA2810 is available in 8-pin SOIC, SOT23, and VSSOP packages and is rated to work over the extended industrial temperature range of –40°C to +125°C. The OPA810 is a single-channel variant of this device, available in 8-pin SOIC and 5-pin SOT-23 and SC70 packages.

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Technical documentation

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Type Title Date
* Data sheet OPA2810 Dual-Channel, 27-V, Rail-to-Rail Input/Output FET-Input Operational Amplifier datasheet (Rev. C) PDF | HTML 11 Feb 2020
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 Pairing up Op Amp and Buffer for Higher Output Power Plus Speed in ATE 07 Jun 2019
Technical article What are the advantages of using JFET-input amplifiers in high-speed applications? 19 Jun 2018

Design & development

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

Evaluation board

OPA2810DGKEVM — OPA2810 FET-input, Voltage-feedback Operational Amplifier Evaluation Module

The OPA2810DGKEVM is an evaluation module for the dual-channel OPA2810 amplifier in the DGK (VSSOP-8) package. OPA2810 is a FET-input, voltage-feedback operational amplifier with extremely low input bias current. The OPA2810DGKEVM is designed to quickly and easily demonstrate the functionality and (...)
User guide: PDF
Not available on TI.com
Simulation model

OPA2810 Model for Curated PSpice Library (Rev. A)

SBOMB78A.ZIP (33 KB) - PSpice Model
Simulation model

OPA2810 TINA-TI Reference Design (Rev. B)

SBOMAM2B.TSC (2389 KB) - TINA-TI Reference Design
Simulation model

OPA2810 TINA-TI Spice Model (Rev. A)

SBOMAM3A.ZIP (9 KB) - TINA-TI Spice Model
Simulation model

OPA2810 for PSPICE Library

SBOMB66.ZIP (16 KB) - PSpice 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 op-amp gain with feedback (...)
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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.

(...)

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
Reference designs

TIDA-060029 — LCR meter analog front end reference design

This reference design, TIDA-060029 demonstrates an analog signal chain solution for LCR Meter applications using an auto balancing impedance measurement method.
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-060021 — Cascaded high-gain active low-pass filter reference design for high-impedance applications

This design uses an OPA2810 high-speed amplifier to provide two multiple feedback (MFB) low-pass filter boards with 1 MHz cutoff frequencies. The fourth-order board, provides a fourth-order filter with high gain and steep roll-off. The high-impedance board (High-Z), is a second-order filter meant (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
SOIC (D) 8 View options
SOT-23 (DCN) 8 View options
VSSOP (DGK) 8 View options

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