AD9022BZ - 12-Bit 20 MSPS Monolithic ADC | Analog Devices
MPN: AD9022BZ ✓ ActiveAD9022BZ Overview
An ADC converts a continuously varying analog voltage into a digital code suitable for processing by digital logic, firmware, DSPs, or other computing systems. Within the broader semiconductor hierarchy, the AD9022BZ is an ADC, part of the data-converter IC family and the wider analog and mixed-signal semiconductor category. Monolithic construction places the sampling, conversion, reference, and associated functions on one integrated circuit, simplifying the analog signal chain compared with a discrete design.
The principal performance specifications are 12-bit resolution, a 20 MSPS conversion rate, and 1.4 W power dissipation. The 12-bit code provides 4,096 digital output levels, while the 20 MSPS rating establishes the maximum stated conversion throughput. On-chip track-and-hold and reference functions reduce the number of external analog support components required. TTL-compatible logic provides a defined digital interface for systems operating with compatible voltage levels.
The AD9022 uses proprietary conversion technology, as identified by distributor and datasheet records. It accepts a bipolar analog signal and presents parallel output data. This parallel architecture can simplify connection to suitable digital receivers, although the complete system must account for output timing, data acquisition, clocking, and input-conditioning requirements. The internal reference and track-and-hold circuitry provide a more complete conversion solution than a bare sampling ADC.
Typical uses include radar receivers, digital communications equipment, and other high-speed signal-processing systems that need local conversion of an analog waveform. The 20 MSPS rate supports sampling of substantially faster signals than a general-purpose low-rate instrumentation ADC, while the 12-bit resolution provides a practical balance between code density, interface width, power, and implementation complexity. Parallel outputs are especially useful when samples must be transferred quickly without a serial-link overhead.
A key design consideration is that the AD9022BZ consumes 1.4 W and requires careful thermal management. The datasheet also identifies a CDSO28 ceramic package with gull-wing terminals, so PCB footprint, assembly process, thermal paths, and soldering requirements must be checked against the manufacturer documentation. Input range, supply requirements, timing, output coding, and temperature limits are not stated in the supplied verified records and must be confirmed before design release.
This page combines the verified distributor and datasheet data with practical engineering guidance, including sourcing context, application fit, comparison limitations, and design cautions. Because the supplied cross-reference search did not identify a verified pin-compatible replacement, no unsupported drop-in substitute is presented as an engineering choice.
Drop-in alternatives for AD9022BZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
No drop-in alternatives available for this product.
Request AlternativesAD9022BZ Maximum Ratings & Electrical Characteristics
| ADC Resolution | 12 bit |
| Sampling Rate | 20 MSPS |
| Power Dissipation | 1.4 W |
| Architecture | Monolithic |
| Track-and-Hold | On-chip |
| Reference | On-chip |
| Input Type | Bipolar analog input |
| Conversion Method | Proprietary method |
| Output Interface | Parallel word access |
| Logic Compatibility | TTL logic |
| Number of Channels | 1 channel |
| Number of Terminals | 28 terminals |
| Package Code | SOP |
| Package Type | CDSO28 ceramic package |
| Terminal Form | Gull wing |
| Package Shape | Rectangular |
| Mounting Type | Surface mount |
| RoHS Status | unknown |
AD9022BZ rectangular Pin Configuration Guide
Pin configuration for AD9022BZ (rectangular package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for AD9022BZ.
Refer to the datasheet for full pin configuration.
Typical Applications
AD9022BZ is suitable for 6 applications: Radar Receiver Signal Capture, Digital Communications Receiver, High-Speed Signal Processing, Test and Measurement Acquisition, Industrial Monitoring and Control, Video and Imaging Signal Conversion.
Radar Receiver Signal Capture
The AD9022BZ fits radar receiver digitization when the required bandwidth and dynamic range are consistent with its 12-bit resolution and 20 MSPS sampling rate. Its on-chip track-and-hold and reference provide the core conversion functions in one monolithic device, reducing the number of separate sampling and reference components around the receiver. The parallel TTL-compatible output can transfer each 12-bit result into a suitable digital acquisition or processing chain. The RF front end must still deliver the correct amplitude, bandwidth, impedance, and filtering because the ADC itself does not remove receiver gain, aliasing, or out-of-band interference.
Digital Communications Receiver
The AD9022BZ is appropriate for moderate-speed digital communications receiver designs that sample an analog waveform at up to the verified 20 MSPS rate. Its 12-bit parallel output avoids adding a serial interface between the converter and acquisition logic, which can simplify timing at higher sample rates. The integrated track-and-hold and reference help create a more compact conversion channel, while the stated 1.4 W dissipation requires suitable PCB thermal design. Input bandwidth, full-scale range, clock jitter, and digital thresholding must be verified from the complete AD9022 datasheet.
High-Speed Signal Processing
AD9022BZ can serve as the analog-to-digital front end of a high-speed signal-processing path when 12-bit resolution and 20 MSPS are sufficient. The monolithic converter includes the track-and-hold and reference circuitry, while parallel word access supports direct capture into compatible digital logic. This arrangement is useful when a processor, FPGA, or memory interface needs rapid conversion results without serial-link overhead. System design must still allocate sufficient data-handling bandwidth, apply antialias filtering before the ADC, and manage the converter's 1.4 W dissipation through the CDSO28 thermal path.
Test and Measurement Acquisition
The AD9022BZ is suitable for compact test and measurement acquisition stages that require up to 20 MSPS conversion and a 12-bit result. Its on-chip track-and-hold and reference reduce the number of discrete components needed for a basic converter channel, and the parallel interface can feed an acquisition controller or FPGA. Measurement accuracy remains dependent on the analog front end, reference behavior, source impedance, clock quality, and PCB layout. The supplied records do not provide input range, SNR, INL, DNL, or calibration details, so those parameters must be confirmed before selecting it for precision instrumentation.
Industrial Monitoring and Control
The AD9022BZ can be used in industrial monitoring systems that require faster sampling than a slow general-purpose control ADC. A 20 MSPS conversion rate permits analysis of transient or high-frequency content, while the 12-bit parallel output provides direct access to the captured data. The monolithic track-and-hold and reference implementation simplifies channel construction, but industrial deployments must account for the converter's 1.4 W heat dissipation, the exact operating-temperature limits, and the need for suitable input isolation or scaling. Those missing electrical limits should be verified before the part is released into production.
Video and Imaging Signal Conversion
AD9022BZ can support video or imaging signal conversion where the system requires a 12-bit, 20 MSPS parallel sampling path. The wide parallel interface can accommodate pixel or component data into suitable logic, while the integrated track-and-hold and reference establish a compact converter stage. Image fidelity still depends on analog bandwidth, aperture behavior, noise performance, and the exact input range, none of which were provided in the verified search records. Validate those parameters and the CDSO28 assembly process before using the converter as a drop-in choice for a different imaging ADC.
Engineering reference data for AD9022BZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| ADC Resolution | 12 bit |
| Sampling Rate | 20 MSPS |
| Power Dissipation | 1.4 W |
| Architecture | Monolithic |
| Input Type | Bipolar analog input |
| Output Interface | Parallel word access |
| Logic Compatibility | TTL logic |
| Package | 28-terminal CDSO28 ceramic surface-mount package |
| Brand | Analog Devices |
Key Differentiators
- Integrated complete conversion channel (vs No verified drop-in alternative was identified)
- Parallel 12-bit data acquisition (vs No verified drop-in alternative was identified)
- Integrated sampling and reference functions (vs No verified drop-in alternative was identified)
Design Notes
The AD9022BZ dissipates 1.4 W, so thermal design is not optional in a compact assembly. Provide copper around the 28-terminal CDSO28 package and thermal vias or a board-construction strategy permitted by the manufacturer's mechanical guidance. Because the supplied records do not provide junction-temperature limits or thermal resistance, do not estimate allowable board temperature by assumption; obtain those values from the AD9022 Rev. B datasheet and complete a thermal analysis for the intended ambient temperature and airflow.
Place the analog input, reference, and clock connections according to the complete AD9022 pinout and layout guidance rather than inferring connections from the 28-terminal count. Keep the analog input path short, provide a low-impedance return path, and place required bypass and decoupling capacitors close to their assigned pins. The verified CDSO28 mechanical drawing and land pattern must govern footprint construction because no package-diagram key in the configured library exactly represents this ceramic gull-wing package.
Treat the 12-bit parallel outputs as a timing-sensitive interface. Confirm output voltage levels, settling time, clock phase, and acquisition timing from the AD9022 Rev. B datasheet before assigning FPGA or memory pins. Route the parallel data bus consistently, minimize stubs and unnecessary layer transitions, and maintain a continuous return plane. The supplied records identify TTL-compatible logic but do not provide edge timing or output-impedance data, so interface design cannot be completed from the available evidence alone.
Do not treat the availability of another AD9022-family order code as proof of drop-in compatibility. A valid substitute must preserve the AD9022BZ terminal assignments, analog input range, polarity, clock interface, 12-bit output coding, 20 MSPS capability, reference arrangement, and CDSO28 footprint. Also do not infer input range, SNR, INL, DNL, supply limits, or operating temperature from the distributor snippets. These omissions are marked as data needed and should be resolved from the manufacturer datasheet before schematic release.
Compliance Information
The supplied verified web records do not contain component-specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. The listed AEC-Q100 value is reported as unknown because the permitted compliance schema otherwise offers only qualified, not_qualified, or not_applicable for this data set.
