Specifications
| Type | Description |
|---|---|
| Part Number | OPA656 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | D (SOIC, 8) 4.9 mm x 6 mm; DBV (SOT-23, 5) 2.9 mm x 2.8 mm |
| Gain-Bandwidth Product | 230 MHz |
| Unity-Gain Bandwidth | 550 MHz |
| Small-Signal Bandwidth | 230 MHz |
| Small-Signal Bandwidth | 59 MHz |
| Small-Signal Bandwidth | 23 MHz |
| Bandwidth for 0.1-dB Flatness | 50 MHz |
| Large-Signal Bandwidth | 130 MHz |
| Slew Rate | 400 V/us |
| Rise-and-Fall Time | 1.3 ns |
| Settling Time | 19 ns |
| Second-Order Harmonic Distortion | -75 dBc |
| Third-Order Harmonic Distortion | -90 dBc |
| Input Voltage Noise | 6 nV/sqrt(Hz) |
| Input Current Noise | 5 fA/sqrt(Hz) |
| Input-Referred Offset Voltage | typ +/-0.2 mV, max +/-1.8 mV |
| Input Offset Voltage Drift | typ +/-2 uV/°C, max +/-12 uV/°C |
| Input Bias Current | typ +/-2 pA, max +/-20 pA |
| Input Offset Current | typ +/-1 pA, max +/-20 pA |
| Open-Loop Voltage Gain | min 60 dB, typ 75 dB |
| Common-Mode Rejection Ratio | min 80 dB, typ 90 dB |
| Common-Mode Input Impedance | 10^12 ohm || 0.4 pF |
| Differential Input Impedance | 10^10 ohm || 2.6 pF |
| Voltage Output Swing | typ +/-3.7 V, max +/-3.9 V |
| Voltage Output Swing | typ +/-3.3 V, max +/-3.5 V |
| Output Current Sourcing | min 50 mA, typ 70 mA |
| Output Current Sinking | typ -70 mA, max -50 mA |
| Closed-Loop Output Impedance | 0.01 ohm |
| Specified Operating Voltage | +/-5 V |
| Recommended Total Supply Voltage | min 8 V, nom 10 V, max 12 V |
| Maximum Operating Voltage Range | max +/-6 V |
| Quiescent Current | min 11.7 mA, typ 15 mA, max 16.7 mA |
| Positive Power-Supply Rejection Ratio | min 72 dB, typ 85 dB |
| Negative Power-Supply Rejection Ratio | min 56 dB, typ 80 dB |
| Recommended Ambient Temperature | min -40°C, nom 25°C, max +85°C |
| Absolute Maximum Supply Voltage | +/-6.5 V |
| Absolute Maximum Input Current | +/-10 mA |
| Absolute Maximum Output Current | +/-30 mA |
| Absolute Maximum Junction Temperature | 150°C |
| Storage Temperature | min -65°C, max +125°C |
| ESD Rating HBM | +/-2000 V |
| ESD Rating CDM | +/-500 V |
| Minimum Stable Gain | 1 V/V |
| Datasheet Status | request_only |
Product Overview
The OPA656 is a Texas Instruments FET-input operational amplifier in the Signal_Chain category. It is specified with a minimum stable gain of 1 V/V, 550 MHz unity-gain bandwidth at G = +1 V/V, and 230 MHz gain-bandwidth product for gains of at least 10 V/V.
Dynamic specifications include 230 MHz small-signal bandwidth at G = +2 V/V, 59 MHz at G = +5 V/V, and 23 MHz at G = +10 V/V, all with 200 mVPP output. The amplifier also provides 130 MHz large-signal bandwidth at 2 VPP, 400 V/us slew rate for a 1-V step, 1.3 ns rise-and-fall time for a 0.2-V step, and 19 ns settling to 0.02% for a 2-V step.
The device is offered in D (SOIC, 8) and DBV (SOT-23, 5) package options. Operating data is specified at ±5 V, with a recommended total supply voltage range of 8 V to 12 V and recommended ambient temperature from -40°C to +85°C. These facts support use in wideband voltage gain stages, low-bias-current signal inputs, and fast-settling analog signal paths.
Key Features
- 550 MHz unity-gain bandwidth at G = +1 V/V
- 230 MHz gain-bandwidth product for G >= 10 V/V
- 400 V/us slew rate for a 1-V output step
- 19 ns settling to 0.02% for 2-V step
- 6 nV/sqrt(Hz) input voltage noise above 100 kHz
- 5 fA/sqrt(Hz) input current noise at 100 kHz
- Typical +/-2 pA input bias current at +/-5 V
- Minimum stable gain of 1 V/V
- 130 MHz large-signal bandwidth at 2 VPP
- SOIC-8 and SOT-23-5 package options
Typical Applications
- Wideband voltage gain stages
- Low-bias-current signal inputs
- Fast-settling analog paths
- 5 MHz distortion-sensitive circuits
- Unity-gain buffer circuits
- Compact SOT-23 signal-chain designs
Procurement Notes
When requesting a quote for OPA656, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of amplifier is the OPA656?
The OPA656 is a Texas Instruments FET-input operational amplifier in the Signal_Chain category. It has a minimum stable gain of 1 V/V and is specified with ±5 V electrical characteristics.
What bandwidth specifications are provided for OPA656?
The OPA656 has 550 MHz unity-gain bandwidth at G = +1 V/V and 230 MHz gain-bandwidth product for G >= 10 V/V. Small-signal bandwidth is specified as 230 MHz at G = +2 V/V, 59 MHz at G = +5 V/V, and 23 MHz at G = +10 V/V.
Which package options are listed for OPA656?
The extracted package data lists D (SOIC, 8) measuring 4.9 mm x 6 mm and DBV (SOT-23, 5) measuring 2.9 mm x 2.8 mm.
What supply range is recommended for OPA656?
The recommended total supply voltage is 8 V minimum, 10 V nominal, and 12 V maximum. Electrical characteristics are specified at ±5 V, and the maximum operating voltage range is listed as ±6 V from -40°C to +85°C.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 13, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.