Part A
AD9224ARSZRL
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6067 PCS
- Package
- SSOP-28
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD9221ARSZ and AD9224ARSZRL are both 12-bit monolithic A/D converters from Analog Devices in a 28-lead SSOP package, sharing the same pinout, supply architecture, and temperature range, which makes them strong functional replacement candidates. The primary distinction is sampling rate: the AD9224ARSZRL offers a higher 40 MSPS maximum conversion rate versus 1.5 MSPS for the AD9221ARSZ, so the substitution is valid only when the system timing budget accommodates the slower device. Designers should confirm that the lower throughput, power consumption, and dynamic performance of the AD9221ARSZ meet application requirements before adopting it as a drop-in alternative.
Resolution and Accuracy
High match
Package and Pinout
High match
Sampling Rate
Validation required
Supply Voltage and Interface
High match
Parts at a glance
Part B
AD9221ARSZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2958 PCS
- Package
- SSOP-28
- Series
- Data Acquisition - Analog to Digital Converters (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 | AD9221ARSZ | AD9224ARSZRL | Why it matters |
|---|---|---|---|
| Resolution | 12 bit | 12 bit | Both converters provide 12-bit resolution, so quantization granularity is equivalent for signal-chain design. |
| Sampling Rate | 1.5 MSPS | 40 MSPS | The maximum conversion rate determines the input bandwidth and Nyquist limit the ADC can support; the AD9224 is far faster. |
| Number of Inputs / Channels | 1 | 1 | Both are single-channel ADCs, so channel count does not differentiate them for multiplexed or multi-signal designs. |
| Input Type | Differential, single-ended | Differential, single-ended | Input configuration affects analog front-end design and achievable noise/linearity performance. |
| Architecture | Pipelined | Pipelined | Pipeline architecture influences latency, power, and speed trade-offs in the signal path. |
| Supply Voltage | 5 V (analog and digital) | 5 V (analog and digital) | Supply requirements determine power-rail compatibility and level-shifting needs in the system. |
| Power Consumption | 59 mW typical | 450 mW typical | Power dissipation affects thermal design and suitability for low-power or portable applications. |
| Package / Case | 28-SSOP | 28-SSOP | Package footprint and pinout determine PCB layout compatibility and drop-in substitutability. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Temperature range confirms suitability for industrial versus commercial environments. |
| Output Interface | Parallel CMOS | Parallel CMOS | Output format must match the downstream digital receiver for direct interfacing. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9224ARSZRL | AD9221ARSZ |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 12 | 12 |
| Sampling Rate(Per Second) | 40M | 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 AD9221ARSZ and AD9224ARSZRL?
The AD9221ARSZ is a 12-bit, 1.5 MSPS analog-to-digital converter, while the AD9224ARSZRL is a 12-bit, 40 MSPS converter. Both are members of Analog Devices' AD922x family and are offered in a 28-lead SSOP (RS) package, but they differ in maximum sampling rate, power consumption, and dynamic performance. The AD9224ARSZRL is supplied in tape-and-reel form (RL suffix), whereas the AD9221ARSZ is a standard tube/tray orderable part number.
Are the AD9221ARSZ and AD9224ARSZRL pin-compatible?
Yes. Both devices are specified in the same 28-lead SSOP (RS-28) package and share the AD922x family pinout, so they are pin-compatible. However, pin compatibility does not guarantee functional interchangeability because the maximum sample rate, timing, and power characteristics differ.
What is the maximum sampling rate of each device?
The AD9221ARSZ is specified for a maximum sampling rate of 1.5 MSPS. The AD9224ARSZRL is specified for a maximum sampling rate of 40 MSPS. A design requiring higher throughput must use the AD9224ARSZRL or another higher-speed converter.
Do both converters have the same resolution and output format?
Yes. Both are 12-bit ADCs with a parallel CMOS-compatible output bus. They belong to the same AD922x family and provide 12-bit resolution; the primary differentiators are speed, power, and AC performance rather than resolution or output interface width.
How does power consumption compare between the AD9221ARSZ and AD9224ARSZRL?
The AD9221ARSZ, operating at its lower 1.5 MSPS maximum rate, consumes significantly less power than the AD9224ARSZRL, which is designed for 40 MSPS operation. The higher-speed AD9224ARSZRL draws more supply current to support its greater throughput. Designers should consult the respective Analog Devices datasheets for exact power figures at specific supply and clock conditions.
What does the "RL" suffix on AD9224ARSZRL indicate?
The "RL" suffix denotes tape-and-reel packaging, which is intended for automated pick-and-place assembly lines. The AD9221ARSZ without an RL suffix is supplied in standard tube/tray packaging. The electrical device is the same AD9224 converter; only the shipping/packaging format differs.
Can the AD9221ARSZ be used as a drop-in replacement for the AD9224ARSZRL?
Not directly for high-speed applications. Although they are pin-compatible in the 28-lead SSOP package, the AD9221ARSZ is limited to 1.5 MSPS, whereas the AD9224ARSZRL supports up to 40 MSPS. Substitution is only appropriate if the system's sampling rate, timing, and dynamic performance requirements are satisfied by the slower AD9221ARSZ; otherwise the AD9224ARSZRL must be retained.
Are both parts RoHS compliant and from the same manufacturer?
Yes. Both the AD9221ARSZ and AD9224ARSZRL are Analog Devices products, and the "Z" in the part number indicates RoHS-compliant packaging. They are lead-free and RoHS-compliant orderable part numbers per Analog Devices' product documentation.