OPA810 High-performance, low-power, wide supply range, rail-to-rail input | TI.com

This product is prototype/experimental and has not been released to the market. Testing and final processes may not be complete. This product may be subject to further changes or possible discontinuation.
High-performance, low-power, wide supply range, rail-to-rail input


Sample Availability

Prototype samples are available (XOPA810IDT). Request Now


The OPA810 is a single-channel, field-effect transistor (FET)-input, voltage-feedback operational amplifier with low input bias current. The OPA810 is unity-gain stable with a small-signal, unity-gain bandwidth of 125 MHz, and offers excellent DC precision and dynamic AC performance at a low quiescent current (IQ) of 3.7 mA per channel (typical). 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 192 V/µs, and low-noise voltage of 6 nV/√Hz, the OPA810 is well suited for use in a wide range of high-fidelity data acquisition and signal processing applications.

The OPA810 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 OPA810 amplifier 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 available in an 8-pin SOIC package and 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, SOT23, and VSSOP packages.


  • Gain-bandwidth product: 70 MHz
  • Small-signal bandwidth: 125 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: ±1.5 µV/°C (typical)
  • Low power: 3.7 mA/channel
  • Extended temperature operation:
    –40°C to +125°C
  • Dual-channel version: OPA2810

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Part number Order Architecture Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) GBW (Typ) (MHz) BW @ Acl (MHz) Acl, min spec gain (V/V) Slew rate (Typ) (V/us) Vn at flatband (Typ) (nV/rtHz) Vn at 1 kHz (Typ) (nV/rtHz) Iq per channel (Typ) (mA) Vos (offset voltage @ 25 C) (Max) (mV) Rail-to-rail Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) CMRR (Typ) (dB) Input bias current (Max) (pA) Offset drift (Typ) (uV/C) Output current (Typ) (mA) 2nd harmonic (dBc) 3rd harmonic (dBc) @ MHz
OPA810 Order now FET / CMOS Input
Voltage FB    
1     4.75     27     70     105     1     192     6     16.43     3.7     1.5     In
C-Load Drive     Catalog     -40 to 125     SOIC | 8     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)     100       1.5     75     99     104     1    
OPA2810 Order now FET / CMOS Input
Voltage FB    
2     4.75     27     70     105     1     192     6     16.43     3.6     1.5     In
C-Load Drive     Catalog     -40 to 125     SOIC | 8
SOT-23 | 8
VSSOP | 8    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
100     20     2     75     99     104     1