OPA680P - 190MHz Wideband Op Amp with Disable | Texas Instruments
N.º de pieza: OPA680P ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
OPA680P Descripción general
An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its differential inputs. A voltage-feedback amplifier uses feedback to set closed-loop gain and is commonly used in signal-conditioning, filtering, buffering, instrumentation, communications, and test equipment. Within the broader semiconductor hierarchy, the OPA680P belongs to the operational-amplifier, analog-IC, and power-management-adjacent signal-chain categories rather than to a power-regulator family.
The OPA680P is unity-gain stable, allowing it to be used with feedback networks that provide a closed-loop gain of one or higher. Its wideband operation and 1800 V/us slew rate make it suitable for waveform conditioning, video and communications interfaces, high-speed current or voltage feedback paths, and active filtering. The disable function provides a way to place the amplifier in a shutdown state when the signal path is not required, helping reduce system power when the channel is inactive.
Its 150 mA output-current capability is relevant for driving moderate loads and downstream stages, while the 6.4 mA supply current keeps the device suitable for compact, high-speed analog systems. The approximately +/-4.0 V output swing must be checked against the actual load and supply conditions. Designers should use short PCB traces, controlled return paths, appropriate bypassing, and a stable feedback layout because a high-speed amplifier can expose layout, parasitic, and probing problems that are negligible at lower frequencies.
Typical uses include high-speed analog signal conditioning, active filters, test and measurement front ends, communications signal paths, video-related circuits, and instrumentation. The OPA680P is appropriate when the system needs more bandwidth than general-purpose op amps provide, but the design does not require a different package or a functional equivalent with substantially different electrical behavior.
This page combines the verified OPA680P specifications, distributor listings, manufacturer datasheet link, application guidance, and a conservative replacement assessment. Because the supplied cross-reference search did not identify a verified same-package, pin-compatible replacement, the alternative list records no unsupported substitutions rather than padding the result with speculative parts.
Alternativas directas para OPA680P — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
OPA680
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OPA680P Valores máximos y características eléctricas
| Amplifier Type | Voltage-feedback operational amplifier |
| Number of Circuits | 1 circuit |
| Gain-Bandwidth Product | 190 MHz |
| Slew Rate | 1800 V/us |
| Unity-Gain Stable | Yes |
| Output Current | 150 mA |
| Output Voltage Swing | +/-4.0 V |
| Corriente de alimentación | 6.4 mA |
| Disable Function | Yes |
| Input Type | Voltage feedback |
| Encapsulado | 8-pin PDIP |
| Package Type | PDIP |
| Tipo de montaje | Through-hole |
Configuración de pines de OPA680P
| Pin 1 | NC — Not connected (per package verification unavailable) |
| Pin 2 | NC — Not connected (per package verification unavailable) |
| Pin 3 | NC — Not connected (per package verification unavailable) |
| Pin 4 | NC — Not connected (per package verification unavailable) |
| Pin 5 | NC — Not connected (per package verification unavailable) |
| Pin 6 | NC — Not connected (per package verification unavailable) |
| Pin 7 | NC — Not connected (per package verification unavailable) |
| Pin 8 | NC — Not connected (per package verification unavailable) |
Aplicaciones típicas
OPA680P es adecuado para 6 aplicacións: High-Speed Signal Conditioning, Active Filtering, Communications Signal Path, Test and Measurement Front End, Video Signal Interface, Industrial Instrumentation.
High-Speed Signal Conditioning
The OPA680P fits high-speed signal-conditioning stages because its verified 190 MHz gain-bandwidth product and 1800 V/us slew rate preserve signal amplitude and edge rate across a wide analog bandwidth. It can buffer or amplify a sensor, converter, or test signal before a higher-level sampling or processing stage. Unity-gain stability supports a feedback-buffer arrangement, while 6.4 mA supply current helps control system power. Layout remains critical: short feedback traces, close supply bypassing, and a controlled ground return are needed to prevent parasitic feedback and instability.
Recomendado
Active Filtering
OPA680P is appropriate for active-filter designs requiring a unity-gain-stable voltage-feedback amplifier with substantial bandwidth and slew capability. The 190 MHz gain-bandwidth product gives design margin for moderate-frequency filter sections, and the 1800 V/us slew rate helps preserve large-signal behavior. Component tolerances, op-amp noise, output loading, and parasitic capacitance can affect the realized filter response, so the complete datasheet values should be checked before selecting resistor and capacitor values. Keep the feedback network compact and symmetrical.
Recomendado
Communications Signal Path
The OPA680P can be used in communications-related analog signal paths where high bandwidth and rapid slew response are important. Its 190 MHz gain-bandwidth product is suitable for wideband conditioning, and its verified 150 mA output current provides drive capability for moderate downstream loads. The approximately +/-4.0 V output swing and 6.4 mA supply current must be matched to the communications module's supply and termination requirements. RF-layout concerns, impedance control, and shielding remain separate design tasks and are not automatically solved by the amplifier package.
Recomendado
Test and Measurement Front End
OPA680P is useful in oscilloscope buffers, arbitrary waveform output paths, instrumentation amplifiers, and other measurement front ends that need to preserve fast transients. The verified 1800 V/us slew rate reduces slew-related distortion for rapidly varying signals, while the 190 MHz gain-bandwidth product supports wideband probing and conditioning. Probe capacitance, source impedance, grounding, and connector parasitics can materially alter results; use short connections and account for the amplifier's input and output limitations in the complete datasheet. Disable can be useful when a test channel is inactive.
Recomendado
Video Signal Interface
OPA680P can be evaluated for video or other wideband buffered signal interfaces when the system's bandwidth, supply, output-swing, and loading requirements match the amplifier's verified capabilities. The 190 MHz gain-bandwidth product is substantially above typical baseband video bandwidth, providing bandwidth margin for gain stages and cable or termination networks. The approximately +/-4.0 V output swing must be checked against the video standard and load, and the 150 mA output-current rating should not be interpreted as a guarantee for every termination. Disable may support power-saving channel architectures.
Recomendado
Industrial Instrumentation
OPA680P is applicable to industrial instrumentation when a fast analog sensor or control signal must be conditioned before conversion or control logic. Its high bandwidth and slew rate can reduce distortion on fast edges, and unity-gain stability enables direct buffering when appropriate. Industrial systems may impose supply-transient, temperature, noise, and grounding requirements that are not fully specified in the supplied excerpts, so the exact operating limits must be verified from the manufacturer datasheet. Proper shielding, filtering, and protective isolation remain application-level requirements.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para OPA680P — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | OPA680 |
|---|---|---|
| Package | 8-pin PDIP | 8-pin PDIP - package match not independently verified |
| Brand | Texas Instruments | Texas Instruments |
| Amplifier Type | Voltage-feedback | Voltage-feedback |
| Number of Circuits | 1 circuit | Dual |
| Gain-Bandwidth Product | 190 MHz | 700 MHz |
Diferenciadores clave
- Single-channel configuration (frente a OPA680)
- Disable function (frente a OPA680)
- Verified supply current (frente a OPA680)
Notas de diseño
Keep the OPA680P feedback loop short and use symmetrical signal and return paths. At 190 MHz, PCB trace inductance, pad capacitance, vias, and probe capacitance can alter gain, phase, output swing, and stability. Place input, feedback, and decoupling connections close to the device where practical, and use a continuous ground reference rather than relying on a long split-plane return. Validate the final layout with the intended load and source impedance.
The verified supply current is 6.4 mA, but the OPA680P's output stage can dissipate additional power when driving a load. Estimate dissipation using the actual output-current, output-voltage, and supply conditions, then compare the resulting junction-temperature margin with the manufacturer limits. Use local supply decoupling and check the disable state in the system power budget. Do not infer safe operating conditions from supply current alone.
Do not substitute OPA680 for OPA680P solely because both names are similar. The verified search describes OPA680 as a dual 700 MHz amplifier, whereas OPA680P is a single 190 MHz device. Verify pin count, pin functions, supply range, disable polarity, output-current rating, and stability before any substitution. For prototypes, use an adapter or socket strategy until the manufacturer documentation confirms compatibility.
Información de cumplimiento
The supplied verified data does not provide compliance declarations for OPA680P. Do not infer RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status from the distributor listing.