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OPA657UB
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FabricanteTexas Instruments
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Peça do Fabricante #OPA657UB
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Em Estoque6060
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Especificações
| Atributo | Valor |
| Package | Bulk,Tube |
| ProductStatus | Active |
| AmplifierType | Voltage Feedback |
| NumberofCircuits | 1 |
| SlewRate | 700V/µs |
| GainBandwidthProduct | 1.6 GHz |
| -3dbBandwidth | 350 MHz |
| Current-InputBias | 1 pA |
| Voltage-InputOffset | 100 µV |
| Current-Supply | 14mA |
| Current-Output/Channel | 70 mA |
| Voltage-SupplySpan(Min) | 8 V |
| Voltage-SupplySpan(Max) | 12 V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Visão Geral
Description
The OPA657UB offers a high slew rate of 450 V/μs, which is ideal for tasks that demand quick response times, like data acquisition systems and active filters. Its low distortion levels and wide dynamic range ensure accurate signal amplification and minimal signal degradation. The device operates at a supply voltage range of ±4 V to ±5.5 V and is stable for gain configurations greater than 7 V/V (or 17 dB).
The amplifier comes in a compact 8-pin SOIC or VSSOP package, making it suitable for dense PCB layouts. With its combination of speed, precision, and low noise, the OPA657UB is well-suited for use in applications such as medical imaging, radar, and telecommunications.
Equivalent
1. AD8065 from Analog Devices: A high-speed, low-noise, low-distortion operational amplifier.
2. LT1028 from Analog Devices: Known for its low noise performance.
3. LMH6629 from Texas Instruments: Designed for high-speed applications with low noise.
These suggestions are approximate equivalents, and it's critical to compare the specific electrical and performance characteristics to ensure suitability for your application.
Features
1. Wide Bandwidth: It offers a gain bandwidth product of 1.6 GHz, making it suitable for high-speed applications.
2. Low Noise: The op-amp has a low input voltage noise of 4.8 nV/√Hz, which is ideal for maintaining signal integrity in sensitive applications.
3. High Slew Rate: With a slew rate of 700 V/µs, the OPA657UB can handle fast transient responses effectively.
4. Low Input Bias Current: It features a low input bias current of 2 pA, which is beneficial for high-impedance sensor applications.
5. Unity-Gain Stability: This op-amp is stable at unity gain, making it versatile for various configurations.
6. Wide Supply Range: It operates with a supply voltage range of ±5V to ±6V, providing flexibility in different circuit designs.
7. Low Distortion: The op-amp provides low harmonic distortion, suitable for high-fidelity applications.
These features make the OPA657UB ideal for applications requiring high speed, accuracy, and low noise, such as optical systems, medical equipment, and precision data acquisition systems.
Pinout
1. Pin 1 (Offset Null): Used for offset voltage adjustment.
2. Pin 2 (Inverting Input, -IN): The inverting input of the amplifier.
3. Pin 3 (Non-Inverting Input, +IN): The non-inverting input of the amplifier.
4. Pin 4 (V-): Negative power supply voltage.
5. Pin 5 (Offset Null): Used along with Pin 1 for offset voltage adjustment.
6. Pin 6 (Output): The output of the amplifier.
7. Pin 7 (V+): Positive power supply voltage.
8. Pin 8 (NC/No Connect): Typically not connected internally.
The OPA657UB is designed for high-speed precision applications, featuring high bandwidth, low noise, and high gain.
Manufacturer
Application
1. Optical Systems: Ideal for photodiode transimpedance amplifiers in fiber optic communication systems due to its low input bias current.
2. Test and Measurement Equipment: Used in oscilloscopes and other high-speed data acquisition systems.
3. Medical Imaging: Suitable for ultrasound and MRI systems requiring fast and accurate signal processing.
4. High-Speed Data Conversion: Effective in driving high-speed analog-to-digital converters (ADCs).
5. Scientific Instrumentation: Employed in spectroscopy and other analytical instruments for precise signal amplification.
These features make the OPA657UB suitable for demanding, high-frequency applications.