Part A
AD9280ARSZ
ADI公司
- Lifecycle
- Active
- Stock
- 6537 件
- Package
- SSOP-28
- Series
- 資料獲取-模數轉換器（ADC）
Replacement verdict
Compatible functional replacement candidate
The AD9283BRS-RL100 is a viable functional replacement candidate for the AD9280ARSZ, sharing a compatible 8-bit resolution, 28-pin SSOP package, and similar analog input architecture. Designers must validate the higher 100 MSPS sampling rate, reduced power consumption, and differing supply voltage requirements against the target application before substitution.
Resolution
High match
Package Type
High match
Sampling Rate
Validation required
Supply Voltage
Validation required
Parts at a glance
Part B
AD9283BRS-RL100
ADI公司
- Lifecycle
- Active
- Stock
- 5867 件
- Package
- SSOP-20
- 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 | AD9280ARSZ | AD9283BRS-RL100 | Why it matters |
|---|---|---|---|
| Resolution | 8 bits | 8 bits | Both are 8-bit ADCs, so quantization accuracy is equivalent for substitutability. |
| Sampling Rate | 32 MSPS | 100 MSPS | The AD9283 supports a much higher maximum sample rate, enabling wider input bandwidth and faster signal capture. |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 3.6 V | The AD9280 tolerates a wider supply range including 5 V, while the AD9283 is limited to 3.3 V-class supplies. |
| Analog Input Range | 1 V p-p to 2 V p-p (configurable) | 1 V p-p | The AD9280 offers a configurable input span, allowing better matching to different signal amplitudes. |
| Power Consumption | ~95 mW at 32 MSPS | ~90 mW at 100 MSPS | Power budget affects thermal design and supply sizing; the AD9283 delivers higher speed at comparable power. |
| Package | 28-Lead SSOP | 20-Lead SSOP | Different package footprints and pin counts prevent direct drop-in board replacement. |
| Output Interface | Parallel CMOS | Parallel CMOS | Both provide parallel CMOS outputs, simplifying digital interface compatibility. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical industrial temperature ratings mean both suit the same environmental conditions. |
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 | AD9280ARSZ | AD9283BRS-RL100 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 8 | 8 |
| Sampling Rate(Per Second) | 32M | 100M |
| 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 |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | 2.7V ~ 3.6V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.7V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the AD9280ARSZ and AD9283BRS-RL100?
The AD9280ARSZ is an 8-bit, 32 MSPS analog-to-digital converter with an on-chip sample-and-hold amplifier, packaged in a 28-lead SSOP. The AD9283BRS-RL100 is an 8-bit, 100 MSPS ADC with an on-chip track-and-hold, supplied in a 20-lead SSOP in tape-and-reel form. The primary differences are maximum sampling rate (32 MSPS vs 100 MSPS), package/pin count (28-lead SSOP vs 20-lead SSOP), and the AD9283's higher-speed input architecture.
Can the AD9280ARSZ be used as a drop-in replacement for the AD9283BRS-RL100?
No. The two devices differ in package footprint (28-lead SSOP vs 20-lead SSOP), pinout, and maximum sample rate (32 MSPS vs 100 MSPS). A direct drop-in substitution is not possible without PCB redesign and validation against the target system's timing and interface requirements.
What are the maximum sampling rates of these two ADCs?
The AD9280ARSZ has a maximum conversion rate of 32 MSPS. The AD9283BRS-RL100 has a maximum conversion rate of 100 MSPS. Designs requiring sample rates above 32 MSPS must use the AD9283 or another device rated for the required rate.
What resolution and output format do the AD9280ARSZ and AD9283BRS-RL100 provide?
Both devices are 8-bit ADCs. The AD9280ARSZ provides a parallel 8-bit CMOS-compatible output. The AD9283BRS-RL100 also provides an 8-bit parallel output. Both are suited to digitizing analog signals requiring 8-bit resolution, with the AD9283 targeting higher-speed applications.
What are the package and pin-count differences between the two parts?
The AD9280ARSZ is offered in a 28-lead SSOP package. The AD9283BRS-RL100 is offered in a 20-lead SSOP package and is supplied in tape-and-reel (RL100) format for automated assembly. The differing pin counts and footprints mean the PCB land patterns are not interchangeable.
Which device is better suited for high-speed signal acquisition?
The AD9283BRS-RL100 is better suited for high-speed acquisition because its 100 MSPS maximum sample rate supports wider analog input bandwidths and higher Nyquist frequencies than the AD9280ARSZ's 32 MSPS rate. The AD9280ARSZ is appropriate for lower-speed digitization up to 32 MSPS.
Do both devices include an on-chip sample-and-hold or track-and-hold amplifier?
Yes. The AD9280ARSZ includes an on-chip sample-and-hold amplifier, and the AD9283BRS-RL100 includes an on-chip track-and-hold circuit. These internal front-end circuits allow both ADCs to sample analog inputs without requiring an external sample-and-hold stage.