Part A
AD9226ARSZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5708 PCS
- Package
- SSOP-28
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD9226ARSZ and AD9223AR are both 12-bit monolithic A/D converters from Analog Devices in a 28-lead SSOP package, sharing a compatible pinout and parallel output interface, so the AD9226ARSZ can serve as a functional replacement candidate for the AD9223AR in many designs. However, the two parts differ in maximum sampling rate and power consumption, so the replacement should be validated against the system's timing margin and thermal budget before adoption.
Resolution and Output Interface
High match
Package and Pinout
High match
Maximum Sampling Rate
Validation required
Power Consumption
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD9226ARSZ | AD9223AR | Why it matters |
|---|---|---|---|
| Resolution | 12 bits | 12 bits | Both converters provide 12-bit resolution, so quantization granularity is equivalent for signal-chain design. |
| Maximum Sampling Rate | 65 MSPS | 3 MSPS | The AD9226 supports much higher throughput, so it can digitize wider-bandwidth signals while the AD9223 is limited to lower-speed applications. |
| Input Type | Differential | Single-ended | Differential inputs improve noise immunity and dynamic performance, whereas single-ended inputs simplify front-end drive requirements. |
| Supply Voltage | 5 V analog and digital | 5 V analog and digital | Both parts operate from a 5 V supply, allowing similar power-rail design and level compatibility. |
| Power Consumption | 475 mW typical | 100 mW typical | The higher-speed AD9226 dissipates significantly more power, which affects thermal design and supply sizing. |
| Package | 28-lead SSOP | 28-lead SSOP | Matching package and pinout can simplify board-level substitution and layout reuse. |
| SNR | 69 dB typical | 70 dB typical | Similar signal-to-noise ratio indicates comparable noise performance for both converters in their intended operating ranges. |
| Output Interface | Parallel CMOS | Parallel CMOS | Both provide parallel CMOS outputs, so digital interface timing and FPGA/ASIC capture logic can be similar. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9226ARSZ | AD9223AR |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 12 | 12 |
| Sampling Rate(Per Second) | 65M | 3M |
| Data Interface | Parallel | Parallel |
| Number of A/D Converters | 1 | 7 |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Number of Inputs | 1 | - |
| Input Type | Differential, Single Ended | - |
| Configuration | S/H-ADC | - |
| Ratio - S / H: ADC | 1:1 | - |
| Architecture | Pipelined | - |
| Reference Type | External, Internal | - |
| Voltage - Supply, Analog | 5V | - |
| Voltage - Supply, Digital | 2.85V ~ 5.25V | - |
Frequently asked questions
What are the primary differences between the AD9226ARSZ and the AD9223AR?
The AD9226ARSZ is a 12-bit, 65 MSPS analog-to-digital converter, while the AD9223AR is a 12-bit, 3 MSPS ADC. Both are monolithic pipelined ADCs from Analog Devices, but the AD9226ARSZ targets higher-speed applications, whereas the AD9223AR is optimized for lower-speed, lower-power designs.
Are the AD9226ARSZ and AD9223AR pin-compatible?
No. The AD9226ARSZ is supplied in a 28-lead SSOP package, and the AD9223AR is supplied in a 28-lead SOIC package. The package types and PCB land patterns differ, so they are not drop-in replacements for one another.
What are the maximum sampling rates of these two converters?
The AD9226ARSZ supports a maximum sampling rate of 65 MSPS. The AD9223AR supports a maximum sampling rate of 3 MSPS. The sampling-rate difference is the most significant performance distinction between the two parts.
Do both parts provide 12-bit resolution?
Yes. Both the AD9226ARSZ and the AD9223AR are 12-bit ADCs, so they offer the same nominal resolution. The choice between them is driven by sampling rate, package, power, and interface requirements rather than resolution.
What are the typical power consumption figures for these ADCs?
The AD9226ARSZ typically consumes about 475 mW at 65 MSPS. The AD9223AR typically consumes about 100 mW at 3 MSPS. Exact power depends on the supply voltage and operating conditions specified in the respective Analog Devices datasheets.
What type of digital output interface do the AD9226ARSZ and AD9223AR use?
Both devices provide a parallel CMOS-compatible digital output bus for the 12-bit conversion result. The output timing and clocking requirements differ because of the different maximum sampling rates, so the digital interface timing must be verified against each datasheet.
Can the AD9223AR be used as a direct substitute for the AD9226ARSZ in an existing design?
No. The AD9223AR has a much lower maximum sampling rate (3 MSPS versus 65 MSPS) and a different package (28-lead SOIC versus 28-lead SSOP). A direct substitution would require revalidation of the sampling rate, PCB footprint, and timing, and is not supported as a drop-in replacement.
What are the typical applications for each of these ADCs?
The AD9226ARSZ is suited to high-speed signal acquisition such as medical imaging, instrumentation, and communications receivers. The AD9223AR is suited to lower-speed, power-sensitive applications such as portable instrumentation, data acquisition, and industrial control where 3 MSPS is sufficient.