AD9022AZ - 12-Bit 20 MSPS Monolithic ADC | Analog Devices
MPN: AD9022AZ ✗ Tapus ng BuhayAD9022AZ Ulas
An ADC is a semiconductor that converts a continuously varying analog voltage into a digital code. Within the product hierarchy, an ADC is a data-converter IC, which is part of the broader analog and mixed-signal semiconductor category. The AD9022AZ belongs to the high-speed monolithic ADC class: it performs sampling and quantization on one integrated device while presenting converted data through a parallel output interface. This architecture is useful where high sampling throughput is more important than serial-interface flexibility.
The principal specifications are 12-bit resolution, a 20 MSPS conversion rate, and monolithic integration of the track-and-hold and reference functions. Parallel access allows the converter to transfer each sample over a multi-bit bus rather than a serial link. The integrated track-and-hold captures the analog input for conversion, while the on-chip reference supports a complete converter design without requiring a separate reference circuit. These features simplify system partitioning and reduce the number of external components around the converter.
The monolithic implementation places sampling, conversion, reference, and parallel output functions in one IC. This integration can reduce board area and external-component count compared with a discrete implementation. The proprietary conversion method identifies the architecture used by the AD9022 family. Because the converter uses parallel data access, system designers must account for data timing, output routing, and the number of digital connections when laying out the printed circuit board.
Typical uses include digital oscilloscopes, communications receivers, frequency-domain analysis equipment, radar and signal-processing subsystems, industrial instrumentation, and high-speed test systems. At 20 MSPS, the device can capture waveforms and modulated signals whose relevant spectral content falls within its conversion bandwidth. External antialias filtering, clock generation, voltage regulation, and digital processing remain important parts of a practical receiver design.
The primary design consideration is signal integrity. Route the parallel output bus with controlled impedance, keep clocks away from sensitive analog inputs, provide a stable reference environment, and observe the required bypass-capacitor network. Because AD9022AZ is an obsolete product, an existing supported design should be checked against the manufacturer’s obsolete-material handling requirements before new procurement. For new designs, an active replacement should be validated for resolution, sampling rate, clocking, logic levels, package, and system timing rather than selected from package appearance alone.
Mga alternatibo na pwedeng ilagay na AD9022AZ — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Wala ng magagamit na drop-in alternatibo para sa produkto na ito.
Hilingin ang AlternatiboAD9022AZ Mga Pinakamataas na Rating at Electrical Characteristics
| Pangangasiwaan | 12 bit |
| Rate ng Pagkupita | 20 MSPS |
| Converter Type | Monolithic ADC |
| Conversion Method | Proprietary method |
| Data Output | Parallel access |
| Track-and-Hold | Integrated on chip |
| Internal Reference | Integrated on chip |
| Packhaging | 28-terminal ceramic LCC-28 |
| Terminal Count | 28 terminals |
| Terminal Form | Gull wing |
| Package Shape | Rectangular |
| Temperature Grade | Other |
Gabay sa Pin Configuration ng AD9022AZ rectangular
Pin configuration para sa AD9022AZ (rectangular package). Ang analog component na ito ay may input, output, at power supply pins. Sumangguni sa datasheet ng manufacturer para sa offset null, compensation, at enable pin configurations. Perpekto para sa signal conditioning at amplifier circuits.
Wala ng detalyadong pinout data na magagamit para sa AD9022AZ.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
AD9022AZ ay nararapat para sa 6 aplikasyons: High-Speed Communications Receiver, Digital Oscilloscope and Waveform Capture, Frequency-Domain Analysis Equipment, Radar and Signal Processing, Industrial Data Acquisition, Test and Measurement Instrumentation.
High-Speed Communications Receiver
The AD9022AZ fits legacy communications receivers that require parallel conversion at 20 MSPS and 12-bit resolution. Its monolithic construction integrates the track-and-hold and reference functions, reducing the number of external converter functions required near the receiver front end. A practical implementation uses the parallel output bus to feed an FPGA or digital processor, while an antialias filter and low-noise clocking network condition the analog input. The principal benefit is a compact, complete 12-bit sampling path; the engineering trade-off is the obsolete lifecycle and the need to preserve a ceramic LCC-28 footprint in an existing design.
Inirekomenda
Digital Oscilloscope and Waveform Capture
The AD9022AZ can capture repetitive waveforms in a legacy digital oscilloscope or waveform-analysis instrument with a 20 MSPS sampling architecture. The 12-bit code width preserves substantially more amplitude detail than an 8-bit converter, while parallel output permits direct transfer into capture logic. The design should use controlled-impedance routing for the digital bus and isolate the clock from the analog input to reduce sampling artifacts. Compared with a serial-output converter, the parallel architecture increases board routing demands, but it supports predictable throughput and straightforward capture timing.
Inirekomenda
Frequency-Domain Analysis Equipment
The AD9022AZ is appropriate for qualified spectrum-analysis and frequency-domain measurement equipment that samples at 20 MSPS using a 12-bit parallel ADC. Its monolithic architecture places the track-and-hold and reference functions on the same device, supporting a compact analog sampling section. Engineers should focus on clock jitter, analog gain distribution, reference stability, and antialias filtering because these factors determine usable dynamic performance. The device’s parallel output also creates many high-speed board edges, so return-path continuity and output timing margin require careful layout verification.
Inirekomenda
Radar and Signal Processing
The AD9022AZ can serve as the sampling element in a legacy radar or industrial signal-processing subsystem requiring 12-bit quantization at 20 MSPS. On-chip track-and-hold and reference functions provide a consolidated conversion solution, while the parallel interface permits direct handoff to digital signal-processing hardware. The analog input path must remain short, and clock distribution must minimize timing variation across the sampling system. Although 20 MSPS is suitable for many instrumentation signals, the engineer must confirm that the required instantaneous bandwidth and dynamic range remain within the converter’s limits.
Inirekomenda
Industrial Data Acquisition
The AD9022AZ is suitable for maintaining a legacy industrial data-acquisition system that requires deterministic 20 MSPS sampling and parallel 12-bit output. Monolithic integration reduces external converter-component count and makes the device attractive for established measurement boards with the correct ceramic footprint. The system should provide stable reference and supply conditions, use an appropriate analog input network, and time the parallel outputs against the sampling clock. For new equipment, verify current availability, thermal margins, and lifecycle risk before committing additional production volume to this obsolete device.
Inirekomenda
Test and Measurement Instrumentation
The AD9022AZ can support a qualified test-and-measurement instrument requiring compact 12-bit, 20 MSPS acquisition. Its integrated track-and-hold and reference functions allow the converter to occupy one central analog-to-digital stage, while the parallel output simplifies connection to timing-sensitive capture logic. Designers should characterize input bandwidth, settling behavior, and clock jitter rather than infer performance solely from the nominal sampling rate. Since the converter is obsolete, a maintenance-focused implementation may be more appropriate than a new platform, subject to long-term supply and assembly planning.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for AD9022AZ — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto |
|---|---|
| Brand | Analog Devices |
| Package | 28-terminal ceramic LCC-28 |
| Resolution | 12 bit |
| Sampling Rate | 20 MSPS |
| Converter Architecture | Monolithic ADC with proprietary conversion method |
| Output Interface | Parallel access |
| Track-and-Hold | Integrated on chip |
| Reference | Integrated on chip |
| Lifecycle Status | Obsolete |
Pangunahing mga Pagkakaiba
- Complete monolithic conversion function (kumpara saAD9023AZ)
- Direct parallel sample transfer (kumpara saAD9023AZ)
- Established ceramic package option (kumpara saAD9023AZ)
Talaan ng Disenyo
Route the 12-bit parallel output as a controlled-length bus and provide a continuous ground reference beneath the outputs. Keep the sampling clock and data lines away from the analog input and reference nodes. When the PCB cannot be changed, preserve the manufacturer’s pin order and existing input, clock, reference, and bypass connections; changing pin sequence can prevent the device from operating even when the replacement has similar conversion specifications.
Use stable, low-noise supply and reference arrangements with local bypass capacitance placed close to the relevant device pins. Because the required supply rails, tolerances, and recommended capacitor values are not reproduced on this page, use the Analog Devices application information and electrical-characteristics tables as the controlling references. Validate startup, supply sequencing, and reference settling before interpreting conversion results.
Treat the analog input, reference, and sampling clock as a single high-speed signal chain. Minimize input-node capacitance, control clock jitter, and use an antialias filter appropriate for the intended signal bandwidth. The nominal 20 MSPS sampling rate does not by itself establish usable bandwidth or dynamic range; characterize the complete front end with the actual filter, clock source, reference, and supply conditions.
Do not substitute a converter solely because it has 12-bit resolution, 20 MSPS operation, or 28 terminals. A true drop-in replacement must match the pin assignment, analog input range, reference implementation, clock polarity, output timing, logic levels, supply arrangement, package dimensions, and thermal requirements. Because no drop-in alternative is confirmed, any redesign should begin with a complete interface and timing comparison.
Impormasyon ng Pagsunod sa Kautusan
No definitive RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status appears in the available product information. The AD9022 product is marked obsolete by Analog Devices.
