AD9023AQ - 12-Bit 20 MSPS ADC | Analog Devices
Référence : AD9023AQ ✓ ActifAD9023AQ Présentation
An ADC is an analog-to-digital converter, a semiconductor in the data-converter and data-acquisition hierarchy. It samples an analog voltage, quantizes that voltage into digital codes, and presents the resulting binary value to a processor, FPGA, memory, or communications system. The AD9023AQ uses a flash-conversion organization with three internal stages, as identified by the product listing, allowing each conversion to be performed without the long sequence associated with successive-approximation converters.
The primary specifications emphasize resolution, throughput, and analog-channel capacity. The 12-bit converter produces 4,096 possible digital codes, while the 20 MSPS maximum sample rate supports acquisition of up to 20 million samples per second. Twelve analog inputs provide parallel signal capture, and the stated 0.0732% linearity error characterizes conversion consistency across the selected input range. Operation from a 5 V supply also supports conventional analog-system power planning when appropriate bypassing and reference circuitry are included.
The AD9023AQ is intended for professional instrumentation, industrial measurement, communications, and medical signal-acquisition systems. Its parallel input organization is especially useful when several analog signals must be captured together or when a downstream digital engine requires continuously refreshed samples. Designers should treat the converter as a high-speed mixed-signal component and account for signal conditioning, grounding, reference stability, clock quality, and controlled return paths around the 28-terminal package.
A key design consideration is that high sample throughput does not by itself guarantee usable system accuracy. Analog input bandwidth, source impedance, reference-noise behavior, clock jitter, and the voltage tolerances of adjacent channels can all affect captured data. The appropriate signal path and layout should therefore be developed together with the ADC input architecture instead of treating the converter as an isolated signal-processing block.
This product record combines the verified 12-bit resolution, 20 MSPS throughput, 12-input count, 0.0732% linearity specification, 5 V supply requirement, and 28-CDIP package details with practical selection guidance. It also separates directly documented characteristics from procurement and pin-assignment items that must be confirmed with Analog Devices before layout release or production commitment.
Alternatives de remplacement direct pour AD9023AQ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesAD9023AQ Valeurs maximales et caractéristiques électriques
| Résolution | 12 bit |
| Maximum Sample Rate | 20 MSPS |
| Number of Analog Inputs | 12 |
| Conversion Architecture | 3-stage flash |
| Linearity Error | 0.0732% |
| Tension d'alimentation | 5 V |
| Boîtier | 28-CDIP |
| Number of Terminals | 28 |
| Type de montage | Through-hole |
| Package Shape | Rectangular |
| Conversion Method | Proprietary method |
| Temperature Grade | Other |
Guide de configuration des broches du AD9023AQ rectangular
Configuration des broches du AD9023AQ (boîtier rectangular). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour AD9023AQ.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
AD9023AQ convient pour 6 applications: Parallel-Channel Industrial Instrumentation, Communications Signal Acquisition, Medical Signal Monitoring, High-Speed Data Acquisition, Power and Process Control Systems, Test and Measurement Equipment.
Parallel-Channel Industrial Instrumentation
The AD9023AQ fits measurement systems that must acquire up to 12 related analog signals at a maximum rate of 20 MSPS. Its 12-bit conversion resolution provides 4,096 output codes, while the parallel input organization can support synchronized sampling across multiple sensor or conditioning channels. A practical implementation should give each source adequate drive capability, keep input routing compact, and use common reference and supply arrangements to reduce channel-to-channel error. The converter's 28-CDIP package favors systems assembled on through-hole or mixed-technology boards rather than compact leadless layouts.
Communications Signal Acquisition
The 20 MSPS sampling rate and 12-bit resolution make the AD9023AQ applicable to intermediate-rate communications acquisition, demodulation front ends, and waveform monitoring systems. The 12 analog inputs allow related receive or monitor signals to be captured by one converter, provided their bandwidth, impedance, and voltage range are compatible with the device. Engineers should design the analog front end around the verified 5 V supply and pay particular attention to clock jitter, source noise, grounding, and return paths because these factors can degrade the benefit obtained from the nominal 12-bit conversion resolution.
Medical Signal Monitoring
AD9023AQ can support laboratory and medical monitoring equipment that captures multiple waveform channels at up to 20 million samples per second. Its 12-bit resolution is useful when the acquisition chain needs meaningful signal detail without the complexity of a substantially higher-resolution converter. For patient-connected or diagnostic equipment, the analog input protection, isolation strategy, reference design, and compliance requirements must be established at the system level. The 28-terminal through-hole package also provides ample PCB routing space for a carefully separated analog, digital, reference, and ground structure.
High-Speed Data Acquisition
The AD9023AQ is suited to general-purpose high-speed data-acquisition systems requiring 12-bit codes at a 20 MSPS maximum rate. A 12-bit ADC divides its analog span into 4,096 ideal quantization levels, making it appropriate for controls, vibration analysis, waveform capture, and general laboratory measurement when system bandwidth and noise remain consistent with that resolution. The converter should be paired with a low-noise reference, controlled clock source, suitable input drivers, and careful PCB partitioning. Firmware and acquisition logic must account for the converter's output format and timing, which should be confirmed from the manufacturer datasheet.
Power and Process Control Systems
In industrial process-control equipment, the AD9023AQ can digitize several feedback or monitor channels while retaining a throughput of up to 20 MSPS. This allows a controller to observe fast transients rather than only slowly changing process variables. The 12-bit resolution provides useful measurement granularity, but the final control-loop accuracy also depends on analog scaling, sensor accuracy, reference stability, and isolation. Use the 28-CDIP footprint to create clear separation between sensitive input routing, reference circuitry, digital outputs, and power-return paths.
Test and Measurement Equipment
The AD9023AQ can serve in oscilloscope-like, automated test, and signal-characterization equipment requiring multiple high-rate analog inputs. Its 20 MSPS conversion rate supports faster transient observation than lower-rate general-purpose converters, while the 12-bit code width balances resolution against data rate and digital-interface complexity. For bench instruments, the analog input network should preserve bandwidth and full-scale accuracy, and the digital section should provide clean clocking and controlled output timing. Use the manufacturer timing diagrams to establish sampling relationships across the 12 inputs before interpreting multi-channel measurements.
Données de référence d'ingénierie pour AD9023AQ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Resolution | 12 bit |
| Maximum Sample Rate | 20 MSPS |
| Number of Analog Inputs | 12 |
| Linearity Error | 0.0732% |
| Supply Voltage | 5 V |
| Conversion Architecture | Proprietary 3-stage flash method |
| Package | 28-CDIP |
| Brand | Analog Devices |
| Mounting Type | Through-hole |
| Terminal Count | 28 |
Principaux différenciateurs
- Parallel high-speed acquisition in one converter (vs AD9023AZ)
- 20 MSPS throughput with 12-bit resolution (vs AD9023AZ)
- Verified through-hole 28-CDIP implementation (vs AD9023AZ)
Notes de conception
Assign the 12 analog inputs, supply, reference, control, digital-output, and ground pins directly from the manufacturer's 28-CDIP pin-description table before routing. Keep analog input traces short and away from digital outputs and clock lines, place the reference and bypass components close to their associated pins, and provide a low-impedance return plane. Because the package is through-hole, pay particular attention to lead inductance, ground-loop geometry, and analog-to-digital separation.
Treat clock quality, input bandwidth, and source impedance as part of the acquisition specification. A 20 MSPS converter does not deliver useful full-resolution bandwidth unless the source can charge the input network and the clock jitter is sufficiently low for the measurement. Check settling behavior with the selected driver, compare input bandwidth against the intended signal spectrum, and validate the complete analog path with known signals rather than relying only on converter timing.
Do not substitute a generic 12-bit ADC solely because the resolution and sample rate appear similar. A valid replacement must also reproduce the 28-CDIP footprint, pin functions, logic levels, input ranges, reference arrangement, control interface, timing, and electrical limits. Verify the complete datasheet and lifecycle status, and perform board-level comparison before using any alternative in a production design.
Plan the 5 V supply path around the converter's actual input, output, and reference requirements as detailed in the manufacturer datasheet. Place bypass capacitors close to their pins with the shortest possible ground-return loops, maintain a quiet reference distribution, and separate switching-power-node connections from analog input and reference areas. Validate startup, shutdown, and power-supply sequencing against the device's timing requirements.
Informations de conformité
The product listings do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. The AD9023AQ is not identified as an automotive-qualified AEC-Q100 device.
