Part A
AD9224ARSZRL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 6067 個数
- Package
- SSOP-28
- Series
- データ取得 - アナログ/デジタルコンバータ (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD9225ARSZ 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 differential input structure. The AD9225ARSZ offers a higher maximum sampling rate (25 MSPS versus 40 MSPS for the AD9224ARSZRL) and correspondingly wider analog input bandwidth, so the AD9224ARSZRL can serve as a functional substitute where the full 25 MSPS throughput is not required, while the reverse substitution demands careful review of timing margins and dynamic performance at the higher rate.
Resolution and Architecture
High match
Package and Pinout
High match
Maximum Sampling Rate
Validation required
Analog Input Bandwidth
Validation required
Parts at a glance
Part B
AD9225ARSZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 1539 個数
- Package
- SSOP-28
- Series
- データ取得 - アナログ/デジタルコンバータ (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 | AD9225ARSZ | AD9224ARSZRL | Why it matters |
|---|---|---|---|
| Resolution | 12 bit | 12 bit | Both are 12-bit ADCs, so digital output word width is identical and no bit-depth change is required for substitution. |
| Sampling Rate | 25 MSPS | 40 MSPS | The maximum conversion rate determines the highest input signal bandwidth the ADC can digitize; the AD9224 supports a faster clock. |
| Number of Input Channels | 1 | 1 | Both are single-channel ADCs, so the channel count matches and no multiplexing changes are needed. |
| Input Type | Differential | Differential | Differential inputs on both parts allow the same analog front-end topology and signal conditioning to be reused. |
| Architecture | Pipelined | Pipelined | Matching pipelined architecture means similar latency, timing behavior, and output coding characteristics. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Identical single 5 V supply simplifies power rail design and allows direct board-level replacement. |
| Package / Case | 28-SSOP | 28-SSOP | Same package and pin count enable drop-in footprint compatibility on an existing PCB layout. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical industrial temperature range ensures both parts meet the same environmental requirements. |
| Power Consumption | Approx. 280 mW | Approx. 400 mW | Higher power dissipation of the AD9224 may affect thermal budget and supply sizing in power-sensitive designs. |
| SNR (Signal-to-Noise Ratio) | Approx. 71 dB | Approx. 69.5 dB | SNR differences affect achievable dynamic range and measurement accuracy, which matters for precision signal acquisition. |
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 | AD9225ARSZ |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 12 | 12 |
| Sampling Rate(Per Second) | 40M | 25M |
| 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 | External, Internal |
| Voltage - Supply, Analog | 5V | 5V |
| Voltage - Supply, Digital | 2.85V ~ 5.25V | 2.85V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the AD9225ARSZ and AD9224ARSZRL?
The AD9225ARSZ is a 12-bit, 25 MSPS analog-to-digital converter, while the AD9224ARSZRL is a 12-bit, 40 MSPS ADC. Both are members of Analog Devices' AD922x family and share the same 28-lead SSOP (RS) package and pinout, but the AD9224 offers a higher maximum sampling rate. The AD9225ARSZ is supplied in tube/tray packaging, whereas the AD9224ARSZRL is supplied in tape-and-reel packaging (RL suffix).
Are the AD9225ARSZ and AD9224ARSZRL pin-compatible?
Yes. Both devices are offered in the same 28-lead SSOP (RS-28) package with an identical pinout, as documented in the Analog Devices AD9225 and AD9224 datasheets. This allows a common PCB footprint, though the higher sampling rate of the AD9224ARSZRL must be validated against the system clocking, layout, and power design.
What are the maximum sampling rates of these two ADCs?
The AD9225ARSZ has a maximum sampling rate of 25 MSPS. The AD9224ARSZRL has a maximum sampling rate of 40 MSPS. Both are 12-bit resolution converters, so the primary performance differentiator is throughput.
Do both parts have the same resolution and input architecture?
Yes. Both the AD9225ARSZ and AD9224ARSZRL are 12-bit ADCs with a pipelined switched-capacitor architecture and a differential input. They provide similar AC and DC performance characteristics per their respective Analog Devices datasheets, with the AD9224 specified at the higher 40 MSPS rate.
What is the difference between the ARSZ and ARSZRL suffixes?
The "ARSZ" suffix denotes the 28-lead SSOP package in a RoHS-compliant (Z) version. The "RL" suffix on AD9224ARSZRL indicates tape-and-reel packaging for automated assembly. Both suffixes refer to the same RoHS-compliant SSOP package; only the shipping/packaging format differs.
Can the AD9225ARSZ be replaced by the AD9224ARSZRL in an existing design?
Because both share the same package and pinout, the AD9224ARSZRL can physically fit an AD9225ARSZ footprint. However, the replacement must be validated: the AD9224 supports up to 40 MSPS, so the clock source, digital output timing, power supply decoupling, and PCB layout must be reviewed against the AD9224 datasheet to confirm the higher-speed operation is supported by the surrounding circuitry.
What power supply do these ADCs require?
Both the AD9225ARSZ and AD9224ARSZRL operate from a single +5 V analog supply, with a separate digital supply pin for output interface flexibility, as specified in the Analog Devices datasheets. Designers should confirm the exact supply and reference configuration against the respective datasheet before layout.
Which part should be selected for a higher-throughput application?
For applications requiring sampling rates above 25 MSPS, the AD9224ARSZRL is the appropriate choice because it is specified for up to 40 MSPS. For designs limited to 25 MSPS or below, the AD9225ARSZ is sufficient. Selection should also account for packaging format (tube vs. tape-and-reel) and the associated assembly process.