OPA657U/2K5

Instrumentation, Op Amps, Buffer Amps Overview

The OPA657U/2K5 is a single-channel, high-speed voltage feedback operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 1.6 GHz and a slew rate of 700 V/µs. The device operates within a supply voltage range of 8 V to 12 V, consuming 14 mA of quiescent current per channel. Key electrical specifications include an input bias current of 2 pA, an input offset voltage of 250 µV, and an output current capability of 70 mA. It is housed in an 8-SOIC surface-mount package and functions reliably across an operating temperature range of -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• High-speed performance with a 1.6 GHz gain-bandwidth product and 700 V/µs slew rate for fast signal processing.
• Low noise FET-input architecture providing minimal input bias current and low input voltage noise density.
• Wide bandwidth stability suitable for demanding analog signal conditioning applications.

Instrumentation, Op Amps, Buffer Amps Applications

• Video buffering and distribution circuits
• High-speed data acquisition systems
• Test and measurement instrumentation

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix '2K5' indicates tape-and-reel packaging when sourcing components. Confirm that the manufacturer part number matches the exact datasheet requirements for your design. Ensure compatibility with standard SOIC-8 footprints during PCB layout. Check for moisture sensitivity levels if storage conditions are critical. Validate that the supplier provides original manufacturer documentation to guarantee component authenticity.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when circuit designs require wide bandwidth combined with low input noise characteristics. The voltage feedback topology offers predictable stability in various gain configurations. Consider the 8-SOIC package size for space-constrained surface-mount assemblies. Evaluate power consumption against system thermal constraints given the 14 mA operating current. Ensure supply voltages remain within the specified 8 V to 12 V range for optimal performance.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the OPA657 series of high-speed operational amplifiers from Texas Instruments. The series is engineered for applications requiring rapid signal response and precision. The OPA657U variant represents the standard tube packaging option, while the /2K5 suffix denotes the reel-packaged version. These amplifiers utilize JFET input stages to achieve superior noise performance compared to bipolar counterparts.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

OPA657U serves as the direct tube-packaged equivalent. OPA657UB is available as an alternative unit configuration. Verify pinout and electrical parameters match before substituting other high-speed op-amps.