OPA689P - 720MHz High-Gain Voltage Feedback Amp | TI
MPN: OPA689P ✗ Cuối đờiOPA689P Tóm tắt
What is a voltage-feedback operational amplifier? It is an analog linear amplifier that uses negative feedback to set closed-loop gain from external resistors. In the broader semiconductor hierarchy, an operational amplifier belongs to the linear amplifier, analog IC, and signal-conditioning categories. Its bandwidth and slew rate determine how quickly it can amplify small differential signals while preserving amplitude and phase accuracy.
The verified device data identifies the OPA689P as a voltage-feedback amplifier with one circuit, 720 MHz gain-bandwidth product, 1600 V/us slew rate, 280 MHz minus-3 dB bandwidth, 8 uA input bias current, and 1 mV input offset voltage. The listed supply current is 15.8 mA, while the exact supply-voltage range and detailed electrical limits require manufacturer datasheet confirmation.
OPA689P applications include broadband analog instrumentation, pulse and waveform conditioning, video or communications interface stages, high-gain signal amplification, and laboratory test systems. Its 1600 V/us slew rate can support fast transitions, but the circuit must still observe package, bandwidth, output-swing, stability, and thermal constraints documented by the manufacturer.
For PCB implementation, use a short, controlled feedback path and minimize parasitic capacitance and inductance. Place compensation, gain-setting, and decoupling components close to the relevant pins. Avoid long traces or unterminated cable runs at high frequency; controlled impedance and suitable source and load terminations are important. The exact pinout and recommended operating conditions are marked when absent from the supplied verified records.
This page combines the supplied distributor and manufacturer-search information with packaging, lifecycle, sourcing, and design guidance. It is intended to support initial component selection while engineers verify the official datasheet and application requirements before production release.
Bộ thay thế dễ dàng lắp đặt cho OPA689P — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với OPA689P (cùng hình factor và footprint) — khác nhau ở Input Offset Voltage, Mounting Type, Package, Slew Rate.
NE5532P
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Xem tài liệu →OPA689P Tỷ lệ tối đa & tính chất điện
| Amplifier Type | Voltage Feedback Amplifier |
| Number of Circuits | 1 |
| Gain Bandwidth Product | 720 MHz |
| -3 dB Bandwidth | 280 MHz |
| Slew Rate | 1600 V/us |
| Input Bias Current | 8 uA |
| Input Offset Voltage | 1 mV |
| Điện áp cung cấp | 15.8 mA |
| Hộp | 8-PDIP (0.300 inch, 7.62 mm) |
| Kiểu lắp đặt | Through-hole |
| AEC-Q100 Qualification | not_applicable |
| Trạng thái vòng đời | Obsolete |
Hướng dẫn cấu hình chân OPA689P 8-pdip (0.300 inch, 7.62 mm)
Cấu hình chân cho OPA689P (8-pdip (0.300 inch, 7.62 mm) gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho OPA689P.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
OPA689P phù hợp cho 6 Áp dụngs: Broadband Instrumentation, Pulse and Waveform Conditioning, Communications Interface, Video and Display Signal Conditioning, Laboratory Signal Generators, High-Gain Analog Signal Conditioning.
Broadband Instrumentation
OPA689P fits broadband instrumentation front ends when the signal chain needs substantial bandwidth and fast transient response. Its verified 720 MHz gain-bandwidth product and 1600 V/us slew rate can support high-frequency measurement and signal-conditioning stages, provided the closed-loop gain, output swing, and load are compatible with the manufacturer’s limits. Place the feedback network close to the device and use controlled impedance to prevent parasitic feedback or ringing. Because the part is obsolete and several operating limits are [DATA_NEEDED: supply and output parameters], validate the complete operating envelope before production use.
Được đề xuất
Pulse and Waveform Conditioning
The OPA689P is suitable for pulse conditioning and waveform amplification where edge speed matters. The listed 1600 V/us slew rate provides a concrete starting point for evaluating required rise and fall times, while the 720 MHz gain-bandwidth product determines usable closed-loop bandwidth. Keep source and load impedances controlled, terminate long interconnect paths, and verify output swing against the pulse amplitude. The verified records do not provide the complete output-voltage or supply limits, so the circuit must be checked against the official datasheet before use.
Được đề xuất
Communications Interface
OPA689P can serve as a high-bandwidth communications interface amplifier when the design requires a voltage-feedback topology and rapid signal transitions. Its verified 720 MHz gain-bandwidth product supports wideband analog stages, but communications designs must also account for input common-mode range, output swing, supply voltage, noise, and stable feedback compensation. Route the high-frequency path with short traces and appropriate terminations to reduce reflections and preserve phase margin. The obsolete lifecycle status makes it more appropriate for existing equipment or controlled legacy supply than for a new platform.
Được đề xuất
Video and Display Signal Conditioning
OPA689P may be considered in video or display-related signal paths that need a wideband voltage-feedback amplifier and high slew rate. The listed 280 MHz minus-3 dB bandwidth and 1600 V/us slew rate are useful initial indicators for broadband waveform fidelity, although the exact usable bandwidth depends on closed-loop gain and loading. Keep the amplifier close to the source and load, minimize capacitance at high-impedance nodes, and verify settling and distortion requirements. Video systems often demand strict output swing and impedance details, so the missing datasheet values must be resolved before release.
Được đề xuất
Laboratory Signal Generators
OPA689P is relevant to laboratory signal-generation and test circuits where fast output transitions and high closed-loop bandwidth are useful. The 720 MHz gain-bandwidth product provides a basis for choosing a suitable feedback network, and the 1600 V/us slew rate can reduce rise-time limitation in selected operating points. Designers should still check output compliance, load capacitance, supply headroom, and stability with the exact external resistor and capacitor values. Because the device is obsolete, prototype work should include a planned replacement or supply-risk review rather than relying on indefinite legacy procurement.
Được đề xuất
High-Gain Analog Signal Conditioning
OPA689P can amplify small differential signals in high-gain analog signal-conditioning stages when high speed is more important than precision offset or low noise. The listed 1 mV input offset voltage becomes increasingly important as closed-loop gain rises, so system error budgets should include it explicitly. The 8 uA input bias current should be checked against source impedance and leakage. Use short, symmetric feedback routing and provide suitable compensation according to the manufacturer’s guidance. Confirm that the target signal bandwidth and output level remain within the unverified [DATA_NEEDED] operating limits.
Được đề xuất
Dữ liệu tham khảo kỹ thuật cho OPA689P — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | NE5532P |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Package | 8-PDIP (0.300 inch, 7.62 mm) | PDIP-8; exact package match not verified |
Bảo phân biệt quan trọng
- High gain-bandwidth product (vsNE5532P)
- High slew rate (vsNE5532P)
- Obsolete lifecycle risk (vsNE5532P)
Ghi chú thiết kế
Keep the feedback loop short and place gain-setting resistors close to the amplifier pins. At the verified 720 MHz gain-bandwidth product, PCB trace inductance and capacitance can alter phase margin and cause oscillation. Use a continuous ground reference, minimize routing around the input and feedback nodes, and verify the assembled layout with appropriate high-speed measurement equipment.
Terminate source and load paths deliberately when using the listed 1600 V/us slew rate. Long cables, uncontrolled impedance, and capacitive loading can create reflections or reduce usable bandwidth. The [DATA_NEEDED: input and output impedance values] should be obtained from the manufacturer datasheet before defining source, load, or cable-termination requirements.
Supply bypassing should be placed close to the device and selected using the manufacturer’s recommended values. The verified record lists 15.8 mA supply current, but it does not provide supply voltage limits, output swing, or maximum output current. Those missing values are essential for rail selection and thermal design; do not infer safe limits from the package description alone.
Thông tin tuân thủ
The supplied verified records do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable to the supplied general-purpose amplifier information.
