Part A
AD9280ARSZRL
ADI公司
- Lifecycle
- Active
- Stock
- 4547 件
- Series
- 資料獲取-模數轉換器（ADC）
Replacement verdict
Compatible functional replacement candidate
The AD9283BRS-80 is a functionally compatible replacement candidate for the AD9280ARSZRL, sharing the same 8-bit resolution, 80 MSPS maximum sampling rate, and 28-lead SSOP package. Designers should validate the analog input range and supply voltage configuration before substitution, as the AD9280ARSZRL supports a wider 2 V to 5.5 V supply and flexible input span, while the AD9283BRS-80 operates from a 3 V supply with a fixed 1 V p-p input range.
Resolution and Sampling Rate
High match
Package Type
High match
Analog Input Range
Validation required
Supply Voltage
Validation required
Parts at a glance
Part B
AD9283BRS-80
ADI公司
- Lifecycle
- Active
- Stock
- 9840 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 | AD9280ARSZRL | AD9283BRS-80 | Why it matters |
|---|---|---|---|
| Resolution | 8 bits | 8 bits | Both are 8-bit ADCs, so quantization resolution is equivalent for substitutability. |
| Maximum Sampling Rate | 32 MSPS | 80 MSPS | The AD9283BRS-80 supports a much higher conversion rate, enabling wider input bandwidth and faster signal capture. |
| Supply Voltage | 2.7 V to 5.5 V | 3.0 V (single supply) | The wider supply range of the AD9280 allows more flexible system-level power design. |
| Analog Input Range | 1 V p-p to 2 V p-p (configurable) | 1 V p-p | Configurable input range in the AD9280 offers more flexibility for different signal amplitudes. |
| Power Consumption | 95 mW typical | 90 mW typical | Similar power consumption, though the AD9283 achieves higher speed at comparable power. |
| Package | 28-lead SSOP | 20-lead SSOP | Different package footprints and pin counts affect PCB layout and drop-in compatibility. |
| Output Interface | Parallel CMOS | Parallel CMOS | Both provide parallel CMOS outputs, simplifying digital interface compatibility. |
| SNR (Signal-to-Noise Ratio) | 48 dB typical | 46.5 dB typical | Higher SNR in the AD9280 indicates better noise performance for sensitive signal acquisition. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Identical industrial temperature ranges support use in similar environmental conditions. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9280ARSZRL | AD9283BRS-80 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 8 | 8 |
| Sampling Rate(Per Second) | - | 80M |
| 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 |
| 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 |
| Base Product Number | AD9280 | - |
| Sampling Rate (Per Second) | 32M | - |
| Number of A / D Converters | 1 | - |
| Mounting Type | Surface Mount | - |
| Packaging | Cut Tape (CT), Tape & Reel (TR) | - |
Frequently asked questions
What are the key differences between the AD9280ARSZRL and AD9283BRS-80?
The AD9280ARSZRL is an 8-bit, 32 MSPS analog-to-digital converter in a 28-lead SSOP package, while the AD9283BRS-80 is an 8-bit, 80 MSPS ADC in a 20-lead SSOP package. The AD9283BRS-80 offers a higher maximum sampling rate (80 MSPS vs 32 MSPS) and a smaller package, but the two devices differ in pinout, package footprint, and power consumption, so they are not drop-in replacements.
Can the AD9283BRS-80 be used as a direct replacement for the AD9280ARSZRL?
No. Although both are 8-bit ADCs from Analog Devices, they have different package types (20-lead SSOP vs 28-lead SSOP), different pinouts, and different maximum sampling rates (80 MSPS vs 32 MSPS). A direct substitution requires PCB redesign and validation against the system's timing and interface requirements.
What are the maximum sampling rates of these two ADCs?
The AD9280ARSZRL has a maximum sampling rate of 32 MSPS, while the AD9283BRS-80 supports up to 80 MSPS. The higher rate of the AD9283BRS-80 makes it suitable for wider-bandwidth signal acquisition, whereas the AD9280ARSZRL targets lower-speed applications.
Do both devices operate from a single 3 V supply?
Yes. Both the AD9280ARSZRL and AD9283BRS-80 are specified for single-supply operation at 3 V (2.7 V to 3.6 V range), which is a common feature of Analog Devices' 8-bit ADC families for portable and low-power systems.
How do the package footprints compare between the AD9280ARSZRL and AD9283BRS-80?
The AD9280ARSZRL is supplied in a 28-lead SSOP package, while the AD9283BRS-80 uses a 20-lead SSOP package. The different lead counts and body sizes mean the PCB land patterns are not interchangeable, so a board designed for one part cannot accept the other without layout changes.
Which device is better suited for high-speed signal acquisition?
The AD9283BRS-80 is better suited for high-speed acquisition because its 80 MSPS maximum sampling rate exceeds the 32 MSPS rate of the AD9280ARSZRL. Higher sampling rate supports wider input bandwidth and better capture of fast transient signals, provided the rest of the signal chain supports it.
Are both parts available in production quantities from authorized distributors?
Both the AD9280ARSZRL and AD9283BRS-80 are listed as Analog Devices products carried by authorized distributors such as DigiKey and Mouser. Availability and lifecycle status should be confirmed against current distributor stock and the official Analog Devices product pages before design commitment.