Part A
AD9280ARSZRL
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4547 PCS
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD9283BRS-RL80 is a functional replacement candidate for the AD9280ARSZRL, sharing the same 8-bit resolution, 32 MSPS maximum sampling rate, and 3 V supply architecture, but it is not a drop-in replacement. The two devices differ in analog input topology, package footprint, and full-scale input range, so the design must be validated for input drive, board layout, and reference configuration before substitution.
Resolution and Sampling Rate
High match
Analog Input Type
Validation required
Package and Footprint
Not compatible
Full-Scale Input Range
Validation required
Parts at a glance
Part B
AD9283BRS-RL80
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5358 PCS
- Package
- SSOP-20
- 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 | AD9280ARSZRL | AD9283BRS-RL80 | Why it matters |
|---|---|---|---|
| Resolution | 8 bits | 8 bits | Both are 8-bit ADCs, so quantization resolution is equivalent for substitutability. |
| Sampling Rate | 32 MSPS | 80 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 | 3.0 V (single supply) | The AD9280 offers a wider supply range, while the AD9283 requires a fixed 3 V supply, affecting system compatibility. |
| Analog Input Range | 1 V p-p to 2 V p-p (programmable) | 1 V p-p | The AD9280 allows a programmable input span, giving more flexibility in front-end signal conditioning. |
| Power Consumption | 95 mW (typical at 32 MSPS) | 90 mW (typical at 80 MSPS) | Power draw affects thermal design and battery life; the AD9283 delivers higher speed at comparable power. |
| Package | 28-lead SSOP | 20-lead SSOP | Different package footprints and pin counts require board layout changes for substitution. |
| 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 ranges 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 | AD9280ARSZRL | AD9283BRS-RL80 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 8 | 8 |
| Sampling Rate(Per Second) | - | 80M |
| Data Interface | Parallel | Parallel |
| Number of A/D Converters | - | 1 |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Base Product Number | AD9280 | - |
| Sampling Rate (Per Second) | 32M | - |
| Number of Inputs | 1 | - |
| Input Type | Differential, Single Ended | - |
| Configuration | S/H-ADC | - |
| Ratio - S / H: ADC | 1:1 | - |
| Number of A / D Converters | 1 | - |
| Architecture | Pipelined | - |
| Reference Type | External | - |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | - |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | - |
| Mounting Type | Surface Mount | - |
| Packaging | Cut Tape (CT), Tape & Reel (TR) | - |
Frequently asked questions
What are the key differences between the AD9280ARSZRL and AD9283BRS-RL80?
The AD9280ARSZRL is a 8-bit, 32 MSPS analog-to-digital converter with an on-chip sample-and-hold amplifier, while the AD9283BRS-RL80 is an 8-bit, 80 MSPS ADC. The AD9283 offers a higher maximum sampling rate (80 MSPS vs 32 MSPS), but both are 8-bit resolution converters. The AD9280 operates from a single 2.7 V to 5.5 V supply, whereas the AD9283 operates from a single 3.0 V supply. Package options also differ: the AD9280ARSZRL is in a 28-lead SSOP, and the AD9283BRS-RL80 is in a 20-lead SSOP.
Are the AD9280ARSZRL and AD9283BRS-RL80 pin-compatible?
No. The AD9280ARSZRL is supplied in a 28-lead SSOP package, while the AD9283BRS-RL80 is supplied in a 20-lead SSOP package. The different pin counts and package footprints mean they are not pin-compatible and cannot be dropped into the same PCB land pattern without redesign.
What are the maximum sampling rates of these two ADCs?
The AD9280ARSZRL has a maximum sampling rate of 32 MSPS. The AD9283BRS-RL80 has a maximum sampling rate of 80 MSPS. The AD9283 therefore supports higher-speed signal acquisition than the AD9280.
What supply voltages do the AD9280ARSZRL and AD9283BRS-RL80 require?
The AD9280ARSZRL operates from a single supply ranging from 2.7 V to 5.5 V. The AD9283BRS-RL80 operates from a single 3.0 V supply. Designs must account for these different supply requirements when considering either part.
What is the resolution of the AD9280ARSZRL and AD9283BRS-RL80?
Both the AD9280ARSZRL and the AD9283BRS-RL80 are 8-bit analog-to-digital converters. Neither part offers higher resolution than the other; the primary differentiators are sampling rate, supply voltage, and package.
Can the AD9283BRS-RL80 be used as a drop-in replacement for the AD9280ARSZRL?
No. Because the two devices differ in package pin count (28-lead SSOP vs 20-lead SSOP), maximum sampling rate (32 MSPS vs 80 MSPS), and supply voltage range, the AD9283BRS-RL80 is not a drop-in replacement for the AD9280ARSZRL. Any substitution requires verification against the respective manufacturer datasheets and validation in the target design.
Which part is better suited for higher-speed applications?
The AD9283BRS-RL80 is better suited for higher-speed applications because its maximum sampling rate is 80 MSPS, compared with 32 MSPS for the AD9280ARSZRL. The higher sample rate allows the AD9283 to digitize faster input signals, subject to the design's other constraints.