Overview
The OPA2810 is a dual-channel, FET-input, voltage-feedback operational amplifier produced by Texas Instruments. It is designed for high-performance applications requiring low input bias current and excellent DC precision along with dynamic AC performance. The OPA2810 is fabricated on Texas Instruments' proprietary high-speed SiGe BiCMOS process, which enhances its performance over comparable FET-input amplifiers at similar power levels. It operates over a wide supply range of 4.75 V to 27 V and features rail-to-rail inputs and outputs, making it suitable for a variety of high-fidelity data acquisition and signal processing applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain-Bandwidth Product (GBWP) | 70 | MHz |
| Small-Signal Bandwidth | 105 | MHz |
| Slew Rate | 192 | V/µs |
| Supply Range | 4.75 V to 27 V | V |
| Input Voltage Noise | 6 nV/√Hz (f = 500 kHz) | nV/√Hz |
| Input Current Noise | 5 fA/√Hz (f = 10 kHz) | fA/√Hz |
| Input Bias Current | 2 pA (typical) | pA |
| Linear Output Current | 75 mA | mA |
| Input Offset Voltage | ±1.5 mV (maximum) | mV |
| Offset Drift | ±2 µV/°C (typical) | µV/°C |
| Quiescent Current per Channel | 3.6 mA (typical) | mA |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Types | SOIC (8-pin), SOT23, VSSOP |
Key Features
- Unity-gain stable with a small-signal unity-gain bandwidth of 105 MHz
- Low input bias current of 2 pA (typical)
- Rail-to-rail inputs and outputs
- High linear output current of 75 mA
- Low noise: 6 nV/√Hz input voltage noise and 5 fA/√Hz input current noise
- Wide supply range of 4.75 V to 27 V
- Low power consumption of 3.6 mA per channel (typical)
- Extended temperature operation from –40°C to +125°C
Applications
- Wideband photodiode transimpedance amplifiers
- High-Z front-ends
- Impedance measurements
- Power analyzers
- Multichannel sensor interfaces
- Level shifting and buffering
- Optoelectronic drivers
Q & A
- What is the gain-bandwidth product of the OPA2810?
The gain-bandwidth product (GBWP) of the OPA2810 is 70 MHz.
- What is the small-signal bandwidth of the OPA2810?
The small-signal bandwidth of the OPA2810 is 105 MHz.
- What is the slew rate of the OPA2810?
The slew rate of the OPA2810 is 192 V/µs.
- What is the supply voltage range for the OPA2810?
The OPA2810 operates over a supply range of 4.75 V to 27 V.
- What is the input voltage noise of the OPA2810?
The input voltage noise of the OPA2810 is 6 nV/√Hz at 500 kHz.
- What is the input bias current of the OPA2810?
The input bias current of the OPA2810 is 2 pA (typical).
- What is the linear output current capability of the OPA2810?
The OPA2810 can deliver up to 75 mA of linear output current.
- What are the typical applications of the OPA2810?
The OPA2810 is used in wideband photodiode transimpedance amplifiers, high-Z front-ends, impedance measurements, power analyzers, multichannel sensor interfaces, level shifting and buffering, and optoelectronic drivers.
- What is the operating temperature range of the OPA2810?
The OPA2810 operates over an extended industrial temperature range of –40°C to +125°C.
- In what packages is the OPA2810 available?
The OPA2810 is available in 8-pin SOIC, SOT23, and VSSOP packages.
