ADV3220ACPZ - 800 MHz 2:1 Analog Multiplexer | Analog Devices
N.º da peça: ADV3220ACPZ ✓ AtivoADV3220ACPZ Visão geral
An analog multiplexer is an interface IC that selects one of two input signals and connects that signal to a common output. A buffered multiplexer includes active output circuitry, allowing the selected signal to retain useful amplitude and bandwidth instead of relying solely on a passive switch. Within the broader hierarchy, the ADV3220ACPZ is an analog switch and multiplexer, an interface IC, and ultimately a semiconductor for high-speed signal routing.
The principal performance features are a 3 dB bandwidth above 800 MHz, switching time below 20 ns with 1% settling, -82 dB crosstalk at 5 MHz, and -88 dB isolation at 5 MHz. Differential gain below 0.02% is particularly useful when maintaining amplitude balance between complementary or differential channels. Its 2:1 configuration makes it appropriate for source selection, redundant-signal routing, test systems, and instrumentation.
The buffered architecture supports high slew-rate operation and allows the multiplexed output to drive downstream circuitry more effectively than a basic passive switch. The manufacturer identifies the ADV3219 and ADV3220 as high-speed, high-slew-rate multiplexers suitable for applications where rapid settling and low channel interaction are important. This combination of bandwidth, isolation, and switching speed favors the device in RF, test-and-measurement, communications, and data-acquisition signal paths.
Typical uses include selecting between two high-speed sensor outputs, routing a local oscillator or reference signal, and multiplexing inputs into oscilloscope or communications test equipment. In these systems, the sub-20 ns settling behavior reduces the time needed before the next measurement, while the -88 dB isolation helps prevent an inactive path from disturbing the active channel.
PCB implementation requires short, impedance-controlled connections, careful return-path planning, and decoupling close to the supply pins. Because the device is intended for signals extending beyond 800 MHz, component placement and package parasitics become more important than they would be at lower frequencies. Confirm the exact pin assignment and exposed-pad connection in the manufacturer datasheet before layout release.
This product overview combines the manufacturer's performance claims with practical guidance for high-frequency routing. It identifies where the ADV3220ACPZ is most effective, explains the tradeoffs of its buffered 2:1 architecture, and separates documented electrical performance from parameters that must be confirmed during design review.
Alternativas drop-in para ADV3220ACPZ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
ADV3219ACPZ
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Ver ficha técnica →ADV3220ACPZ Especificações
| Device Type | Buffered 2:1 analog multiplexer |
| Number of Circuits | 1 circuit |
| Signal Bandwidth | >800 MHz at -3 dB |
| Channel Switch Time | <20 ns to 1% settling |
| Crosstalk | -82 dB at 5 MHz |
| Isolation | -88 dB at 5 MHz |
| Differential Gain | <0.02% |
| Supply Voltage Range | -4.5 V to -5.5 V or +4.5 V to +5.5 V |
| Encapsulamento | 8-LFCSP-WD, 3 mm x 3 mm |
| Tipo de montagem | Surface mount |
| Multiplexer Configuration | 2:1 |
| Output Architecture | Buffered |
Guia de Configuração de Pinos do ADV3220ACPZ 8-lfcsp-wd, 3 mm x 3 mm
Configuração de pinos para ADV3220ACPZ (pacote 8-lfcsp-wd, 3 mm x 3 mm). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para ADV3220ACPZ.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ADV3220ACPZ é adequado para 6 aplicaçãos: RF and Wideband Signal Routing, Communications Equipment Signal Selection, Test and Measurement Front Ends, High-Speed Data Acquisition, Audio and Instrumentation Source Selection, Dual-Source Reference Routing.
RF and Wideband Signal Routing
The ADV3220ACPZ fits two-source RF routing where the signal path must support bandwidth above 800 MHz and the inactive channel must not disturb the selected path. Its buffered output and -88 dB isolation at 5 MHz provide useful headroom for switching between test signals or communication branches. Place the device near the controlled impedance transition, preserve a continuous ground reference, and minimize stubs around the 3 mm by 3 mm LFCSP-WD package to preserve bandwidth and channel separation.
Recomendado
Communications Equipment Signal Selection
The ADV3220ACPZ can select between two high-speed communication paths in receiver or test equipment while preserving a 3 dB bandwidth above 800 MHz. Switching to 1% settling in less than 20 ns supports rapid measurement or calibration sequences, while -82 dB crosstalk at 5 MHz helps prevent the unselected branch from coupling into the active signal. Controlled impedance routing, short supply connections, and a continuous ground plane are essential when the mux feeds a sensitive communications front end.
Recomendado
Test and Measurement Front Ends
The ADV3220ACPZ is suitable for switching two high-frequency sources into a common oscilloscope, analyzer, or fixture input. The greater-than-800 MHz bandwidth avoids making the multiplexer the limiting element across a large portion of the instrument bandwidth, and the sub-20 ns settling time supports repetitive acquisition sequences. Use short RF-rated PCB traces, maintain impedance continuity through the LFCSP-WD footprint, and verify that downstream loading does not compromise the settling behavior stated for 1% accuracy.
Recomendado
High-Speed Data Acquisition
The ADV3220ACPZ can route one of two sensors or sources into a high-speed acquisition chain when both signals must be selected without introducing substantial switching delay. Its buffered topology supports a bandwidth above 800 MHz, and its -82 dB crosstalk at 5 MHz reduces unwanted interaction between the active and inactive channels. Place decoupling capacitors close to the supply terminals, preserve the exposed-pad connection specified by the manufacturer, and confirm that the source impedance remains within the device operating conditions.
Recomendado
Audio and Instrumentation Source Selection
The ADV3220ACPZ can select between two analog sources in audio test systems or instrumentation where fast, controlled channel changes are useful. The buffered output provides greater-than-800 MHz bandwidth, which leaves ample margin for audio-band signals and associated low-frequency measurement components. Although its switching performance exceeds typical audio requirements, the high isolation of -88 dB at 5 MHz can suppress interaction between selected sources. Review the control truth table and provide stable bypass capacitance to avoid unexpected channel transients.
Recomendado
Dual-Source Reference Routing
The ADV3220ACPZ supports selection between two reference or clock signals in instrumentation when the selected output must settle quickly and maintain isolation from the inactive source. The specified -88 dB isolation at 5 MHz and differential gain below 0.02% are useful where amplitude balance and source-to-source coupling affect measurement integrity. Keep the routing path short and symmetric, observe the manufacturer control logic, and verify the output settling under the actual source impedance and load presented by downstream circuitry.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ADV3220ACPZ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ADV3219ACPZ |
|---|---|---|
| Device Type | Buffered 2:1 analog multiplexer | Buffered 2:1 analog multiplexer |
| Package | 8-LFCSP-WD (3x3) | 8-LFCSP-WD (3x3) |
| Brand | Analog Devices | Analog Devices |
| Signal Bandwidth | >800 MHz at -3 dB | >800 MHz at -3 dB |
| Switching Time | <20 ns to 1% settling | <20 ns to 1% settling |
| Crosstalk | -82 dB at 5 MHz | -82 dB at 5 MHz |
| Isolation | -88 dB at 5 MHz | -88 dB at 5 MHz |
| Differential Gain | <0.02% | <0.02% |
Principais diferenciais
- High-speed buffered architecture (vs ADV3219ACPZ)
- Strong inactive-channel suppression (vs ADV3219ACPZ)
- Compact high-frequency routing footprint (vs ADV3219ACPZ)
Notas de projeto
Treat the 8-LFCSP-WD footprint as an RF structure rather than a generic digital IC footprint. Keep input and output routes short, match impedances consistently, avoid long branches and test pads, and provide a continuous ground reference beneath the package. The exposed-pad connection and the manufacturer's recommended land pattern must be taken directly from the package drawing before PCB release.
Place the required bypass capacitors immediately adjacent to the supply and ground terminals, with very short ground vias or connections into the reference plane. Maintain the documented dual-polarity supply range and review absolute maximum limits before selecting operating margins. Because supply return paths share the same package used by the high-frequency signal nodes, excessive supply impedance can degrade isolation and settling performance.
Verify switching behavior at the actual source impedance, termination, and load. The published switching specification reaches 1% settling in less than 20 ns, but that result does not remove the need for controlled edge rates or termination in long routes. Keep unused inputs terminated according to the recommended application circuit and check control timing against the device truth table.
Do not substitute the mux solely because another part is also a high-speed 2:1 multiplexer. A production replacement requires identical pin assignments, exposed-pad treatment, logic polarity, supply limits, and acceptable timing and isolation behavior. Confirm the complete ordering code when ordering so the ACPZ package suffix and required reel or tray configuration match the assembled board.
Informações de conformidade
No specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations were identified in the cited product information. Confirm current declarations with Analog Devices using the ordering code and package suffix.
