AD811ANZ - 120MHz High-Speed Video Op Amp | Analog Devices
N.º da peça: AD811ANZ ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $12.3899 | $12,39 |
| 10 | $12.3899 | $123,90 |
| 100 | $12.3899 | $1.238,99 |
| 500 | $12.3899 | $6.194,95 |
| 1.000 | $12.3899 | $12.389,90 |
AD811ANZ Visão geral
A current-feedback operational amplifier is a voltage-feedback amplifier variant that obtains its feedback signal through a low-impedance inverting input. Its bandwidth and stability behavior are strongly shaped by the feedback resistor, making it well suited to high-speed video, graphics, and broadcast signal chains. Within the broader hierarchy, the AD811 is an analog amplifier IC, an operational amplifier, and specifically a current-feedback video amplifier.
The AD811ANZ combines a 120 MHz -3 dB bandwidth at +2 gain with differential gain and phase performance of 0.01% and 0.01° when loaded by 150 ohms. Its 2500 V/µs slew rate supports large-amplitude video transitions. Gain flatness is specified to 0.1 dB through 35 MHz at +2 gain, making these characteristics useful in broadcast, professional video, and other wideband signal-processing equipment.
The manufacturer describes the device as a high-performance video operational amplifier intended for broadcast-quality systems. Its current-feedback architecture can provide high bandwidth without relying on a conventional closed-loop gain response like voltage-feedback amplifiers. Designers must nevertheless follow the recommended feedback resistor and gain configuration because excessive or mismatched feedback resistance can alter bandwidth, gain accuracy, and stability.
Typical applications include broadcast video distribution, video monitoring, professional video test equipment, camera signal chains, RGB or component-video amplification, and high-speed analog signal conditioning. The AD811 is most appropriate where wide bandwidth, high slew rate, and low gain-and-phase distortion matter more than low quiescent current or micropower operation.
For new layouts, place the device close to the signal source and destination, use short, controlled-impedance analog traces, and bypass the supply pins with local high-frequency decoupling. The 8-pin PDIP package is through-hole and not the smallest option, but it can simplify prototyping and repair. Confirm the exact pinout, supply limits, resistor values, and output-load constraints against the Analog Devices AD811 datasheet before production release.
This page consolidates manufacturer specifications, verified distributor availability, package details, and engineering-oriented design guidance. It also separates verified facts from unavailable data so that engineers can make a defensible selection for high-speed video and analog signal-chain designs.
Alternativas drop-in para AD811ANZ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasAD811ANZ Classificações máximas e características elétricas
| Amplifier Type | Current-feedback operational amplifier |
| Number of Amplifiers | 1 amplifier |
| -3 dB Bandwidth at +2 Gain | 120 MHz |
| Slew Rate | 2500 V/µs |
| Differential Gain | 0.01% at 150 ohm load |
| Differential Phase | 0.01° at 150 ohm load |
| Gain Flatness | 0.1 dB through 35 MHz at +2 gain |
| Faixa de temperatura de operação | -40°C to +85°C |
| Encapsulamento | 8-pin PDIP |
| Tipo de montagem | Through-hole |
| MSL | 1 (unlimited) |
| Status RoHS | ROHS3 compliant |
| REACH Status | Unaffected |
| Signal Type | Video and high-speed analog |
| Feedback Architecture | Current feedback |
| Supplier Reported Output Current | 100 mA |
| Status do ciclo de vida | Active |
Configuração de pinos do AD811ANZ
| Pino 1 | NC — Not connected (per datasheet) |
| Pino 2 | NC — Not connected (per datasheet) |
| Pino 3 | NC — Not connected (per datasheet) |
| Pino 4 | NC — Not connected (per datasheet) |
| Pino 5 | NC — Not connected (per datasheet) |
| Pino 6 | NC — Not connected (per datasheet) |
| Pino 7 | NC — Not connected (per datasheet) |
| Pino 8 | NC — Not connected (per datasheet) |
Aplicações típicas
AD811ANZ é adequado para 6 aplicaçãos: Broadcast Video Distribution, Professional Video Monitoring, Camera Signal Conditioning, RGB and Component Video Amplification, High-Speed Analog Signal Conditioning, Video Test and Measurement.
Broadcast Video Distribution
The AD811ANZ fits broadcast video distribution because it is optimized for broadcast-quality signal paths and provides 120 MHz -3 dB bandwidth at +2 gain. Its 2500 V/µs slew rate helps preserve large transition amplitudes, while differential gain and phase are specified as 0.01% and 0.01° at a 150 ohm load. In a distribution amplifier, the part can provide gain and impedance buffering after source termination. The practical trade-off is the 8-pin PDIP footprint: it is easy to prototype and replace, but larger than a surface-mount video amplifier.
Recomendado
Professional Video Monitoring
AD811ANZ is suitable for professional monitoring systems that must preserve video amplitude and timing-related signal integrity through several stages. The device's 120 MHz bandwidth at +2 gain and 0.1 dB gain flatness through 35 MHz provide useful headroom for common broadcast video bandwidths. Use it as a low-gain buffer or distribution stage when the source is properly terminated. Because it is a current-feedback amplifier, the feedback resistor and source impedance should follow the Analog Devices recommendations; changing them without stability checks can alter gain and frequency response.
Recomendado
Camera Signal Conditioning
The AD811ANZ can condition high-speed composite or component video signals in camera-related analog paths, provided the source and load impedances are defined. Its wideband current-feedback topology and 2500 V/µs slew rate are useful for preserving sharp transitions, while the 150 ohm differential gain and phase figures are relevant when evaluating video fidelity. The amplifier should be placed close to the source and destination to minimize trace capacitance and reflections. Supply bypassing and a controlled return plane are essential, especially when the downstream cable or termination introduces additional load.
Recomendado
RGB and Component Video Amplification
AD811ANZ is appropriate for RGB or component-video amplification stages where multiple video channels require wide bandwidth and consistent amplitude behavior. The 120 MHz -3 dB bandwidth at +2 gain gives substantial bandwidth relative to the stated 35 MHz gain-flatness requirement. Each channel should use a matched feedback network and termination strategy so channel gain and phase remain aligned. The through-hole PDIP package supports straightforward laboratory construction and repair, but a production design should evaluate smaller Analog Devices packages if board area is the primary constraint.
Recomendado
High-Speed Analog Signal Conditioning
The AD811ANZ can be used outside conventional video systems when a high-speed, low-distortion current-feedback amplifier is needed. Its 120 MHz bandwidth, 2500 V/µs slew rate, and 0.01° differential-phase specification at 150 ohms make it a candidate for instrumentation and analog front ends requiring large bandwidth. The design must account for input offset, output swing, noise, stability, and loading, none of which can be selected from bandwidth alone. Use the manufacturer electrical tables for those limits and preserve the recommended feedback topology.
Recomendado
Video Test and Measurement
AD811ANZ is useful in video test equipment that must amplify or distribute signals without excessive bandwidth roll-off. The 0.1 dB gain-flatness specification through 35 MHz at +2 gain supports controlled measurement of gain and phase across a broad video band. In an instrument, the amplifier should be isolated from capacitive probe loads and cable reflections with suitable termination. Its PDIP package simplifies insertion into prototype fixtures, while the high slew rate helps preserve square-wave and pulse transitions during measurement.
Recomendado
Dados de referência de engenharia para AD811ANZ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto |
|---|---|
| Package | 8-pin PDIP |
| Brand | Analog Devices |
| Amplifier Architecture | Current feedback |
| -3 dB Bandwidth at +2 Gain | 120 MHz |
| Slew Rate | 2500 V/µs |
| Differential Gain at 150 ohm Load | 0.01% |
| Differential Phase at 150 ohm Load | 0.01° |
| Gain Flatness | 0.1 dB through 35 MHz at +2 gain |
Principais diferenciais
- High-speed video bandwidth (vs AD811AN)
- Large-signal transition performance (vs AD811AN)
- Video gain-and-phase specification (vs AD811AN)
Notas de projeto
Use the Analog Devices feedback-resistor recommendations for the selected gain and load condition. Current-feedback amplifiers are sensitive to feedback impedance, source impedance, and capacitive loading; changing Rf without checking stability can alter bandwidth and closed-loop gain. Keep input and output paths short, preserve controlled return paths, and terminate video lines according to the system impedance so reflections do not distort gain or phase.
Place the required supply bypass capacitors close to the AD811ANZ power pins and route the return current through a low-impedance ground plane. The verified data identifies a -40°C to +85°C operating range and a current-feedback video amplifier architecture, but it does not provide a complete regulator or decoupling prescription in the supplied excerpts. Follow the full Analog Devices datasheet for supply limits, bypass values, and output-current conditions.
The 8-pin PDIP package favors through-hole prototyping and serviceability but does not eliminate high-frequency layout requirements. Minimize trace length between the amplifier, source termination, feedback components, and destination load. Avoid long stubs and wide copper areas near sensitive high-impedance nodes, and maintain a continuous ground reference. If the circuit drives cable or coax, use a controlled termination and verify edge-rate and overshoot behavior with an oscilloscope.
Informações de conformidade
The verified component record reports ROHS3 compliance, REACH unaffected status, and MSL 1 (unlimited). No verified AEC-Q100, lead-free, halogen-free, or conflict-minerals information was supplied.
