Part A
AD9226ARSZ
ADI公司
- Lifecycle
- Active
- Stock
- 5708 件
- Package
- SSOP-28
- Series
- 資料獲取-模數轉換器（ADC）
Replacement verdict
Compatible functional replacement candidate
The AD9226ARSZ and AD9221ARS-REEL share the same 12-bit resolution, 28-lead SSOP package, and parallel CMOS output interface, making them functionally aligned in form factor and digital interfacing. However, the AD9226ARSZ offers a significantly higher maximum sampling rate (65 MSPS versus 1.5 MSPS) and correspondingly higher power consumption, so the AD9221ARS-REEL can serve as a lower-speed, lower-power substitute only in applications where the reduced throughput is acceptable. Designers should validate timing margins and power budget before adopting the AD9221ARS-REEL as a replacement.
Resolution
High match
Package Type
High match
Output Interface
High match
Maximum Sampling Rate
Not compatible
Parts at a glance
Part B
AD9221ARS-REEL
ADI公司
- Lifecycle
- Active
- Stock
- 8495 件
- Package
- SSOP-28
- Series
- 資料獲取-模數轉換器（ADC）
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 | AD9221ARS-REEL | Why it matters |
|---|---|---|---|
| Resolution | 12 bits | 12 bits | Both converters provide 12-bit resolution, so quantization noise floor and LSB size are comparable for a given input range. |
| Maximum Sampling Rate | 65 MSPS | 1.5 MSPS | The AD9226 supports much higher throughput, enabling wideband signal capture, while the AD9221 is limited to low-speed applications. |
| Input Type | Differential | Differential | Differential inputs improve common-mode noise rejection and dynamic performance in both parts. |
| Analog Input Range | 2 V p-p differential | 2 V p-p differential | Matching input spans allow similar front-end amplifier and reference designs without rescaling. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Both operate from a single 5 V rail, simplifying power supply design and board-level compatibility. |
| Power Consumption | 475 mW typical | 70 mW typical | The AD9221 consumes far less power, which is critical for portable or thermally constrained systems. |
| Output Interface | Parallel CMOS | Parallel CMOS | Both provide parallel CMOS outputs, allowing direct connection to standard digital controllers and FPGAs. |
| Package | 28-Lead SSOP | 28-Lead SSOP | Identical package and pinout enable drop-in board replacement without layout changes. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Both are specified for industrial temperature ranges, supporting use in harsh environments. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9226ARSZ | AD9221ARS-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 12 | 12 |
| Sampling Rate(Per Second) | 65M | 1.5M |
| Number of Inputs | 1 | 1 |
| Input Type | Differential, Single Ended | Differential, Single Ended |
| Data Interface | Parallel | Parallel |
| Configuration | S/H-ADC | S/H-ADC |
| Ratio - S / H: ADC | 1:1 | 1:1 |
| Number of A/D Converters | 1 | 1 |
| Architecture | Pipelined | Pipelined |
| Reference Type | External, Internal | Internal |
| Voltage - Supply, Analog | 5V | 5V |
| Voltage - Supply, Digital | 2.85V ~ 5.25V | 2.7V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the AD9226ARSZ and AD9221ARS-REEL?
The AD9226ARSZ is a 12-bit, 65 MSPS analog-to-digital converter, while the AD9221ARS-REEL is a 12-bit, 1.5 MSPS ADC. Both are members of Analog Devices' AD922x family and share a compatible SSOP-28 package and pinout, but they differ primarily in maximum sampling rate, power consumption, and dynamic performance. The AD9226ARSZ is intended for high-speed applications, whereas the AD9221ARS-REEL targets lower-speed, lower-power designs.
Are the AD9226ARSZ and AD9221ARS-REEL pin-compatible?
Yes. Both devices are offered in a 28-lead SSOP (RS-28) package and are part of the same AD922x pin-compatible family from Analog Devices. This allows a common PCB footprint, but designers must still verify that the surrounding circuitry (clock, input drive, and power) supports the selected speed grade.
What are the maximum sampling rates of these two ADCs?
The AD9226ARSZ has a maximum sampling rate of 65 MSPS. The AD9221ARS-REEL has a maximum sampling rate of 1.5 MSPS. The sampling rate difference is the primary selection criterion between the two parts.
How do the power consumption figures compare?
The AD9226ARSZ typically consumes about 475 mW at 65 MSPS from a single 5 V supply. The AD9221ARS-REEL typically consumes about 60 mW at 1.5 MSPS. Lower sample rate operation in the AD9221ARS-REEL results in substantially lower power dissipation.
Do both parts operate from the same supply voltage?
Yes. Both the AD9226ARSZ and AD9221ARS-REEL operate from a single 5 V analog supply (AVDD) and a 3 V to 5 V digital supply (DRVDD), consistent with the AD922x family architecture. Designers should confirm the exact recommended supply ranges in the respective datasheets.
What is the difference in packaging between the two orderable part numbers?
Both parts use the same 28-lead SSOP package. The "ARSZ" suffix on the AD9226ARSZ denotes the RoHS-compliant SSOP package in tube or tray form, while the "ARS-REEL" suffix on the AD9221ARS-REEL denotes the SSOP package supplied on tape and reel for automated assembly. Package dimensions and pinout are identical.
Can the AD9221ARS-REEL be used as a drop-in replacement for the AD9226ARSZ in an existing design?
Physically, the pinout and package are compatible, but functionally the AD9221ARS-REEL is limited to 1.5 MSPS versus 65 MSPS for the AD9226ARSZ. A drop-in replacement is only valid if the system's sampling rate requirement is 1.5 MSPS or lower and the clock, input network, and digital interface timing are re-validated against the AD9221ARS-REEL datasheet.
What are the typical applications for each device?
The AD9226ARSZ, with its 65 MSPS rate, is suited to high-speed data acquisition, medical imaging, IF sampling, and communications receivers. The AD9221ARS-REEL, at 1.5 MSPS, is suited to lower-speed instrumentation, industrial control, and portable or power-sensitive systems where its lower power consumption is advantageous.