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-100 is a viable functional replacement candidate for the AD9280ARSZRL in many 8-bit ADC applications, sharing identical resolution, similar sampling performance, and a compatible SSOP-28 footprint. However, designers must validate the analog input architecture and supply configuration, since the AD9283 uses a differential input and a single 3.0 V supply versus the AD9280's single-ended input and 5 V supply, which may require front-end and power-rail redesign.
Resolution
High match
Package Type
High match
Analog Input Type
Validation required
Supply Voltage
Not compatible
Parts at a glance
Part B
AD9283BRS-100
ADI公司
- Lifecycle
- Active
- Stock
- 5432 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-100 | 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 conversion 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 (programmable) | 1 V p-p | The AD9280 offers a programmable input span, allowing better matching to different signal amplitudes. |
| Power Consumption | 95 mW typical at 32 MSPS | 90 mW typical 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 footprints and pin counts mean the parts are not drop-in replacements on an existing PCB. |
| 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 support use in the same environmental conditions. |
| SNR | 48 dB typical at 10 MHz input | 46.5 dB typical at 41 MHz input | Signal-to-noise ratio determines dynamic range; the AD9280 offers slightly better SNR at lower input frequencies. |
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-100 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 8 | 8 |
| Sampling Rate(Per Second) | - | 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 |
| 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 the AD9283BRS-100?
The AD9280ARSZRL is an 8-bit, 32 MSPS analog-to-digital converter with an on-chip sample-and-hold amplifier, specified for a 2.7 V to 5.5 V supply range and housed in a 28-lead SSOP. The AD9283BRS-100 is an 8-bit, 100 MSPS ADC with an on-chip track-and-hold, specified for a 3.0 V supply and housed in a 20-lead SSOP. The primary differences are sampling rate (32 MSPS vs 100 MSPS), supply voltage range, package footprint, and pin count.
Can the AD9280ARSZRL and AD9283BRS-100 be used interchangeably in the same PCB footprint?
No. The AD9280ARSZRL is supplied in a 28-lead SSOP package, while the AD9283BRS-100 is supplied in a 20-lead SSOP package. The differing pin counts and package dimensions mean the PCB land patterns are not compatible, so a direct drop-in replacement is not possible without a board redesign.
What are the maximum sampling rates of these two ADCs?
The AD9280ARSZRL has a maximum conversion rate of 32 MSPS. The AD9283BRS-100 has a maximum conversion rate of 100 MSPS. The higher sampling rate of the AD9283BRS-100 makes it suitable for wider-bandwidth signal acquisition, while the AD9280ARSZRL targets lower-speed applications.
What supply voltages do the AD9280ARSZRL and AD9283BRS-100 require?
The AD9280ARSZRL operates from a single supply spanning 2.7 V to 5.5 V. The AD9283BRS-100 operates from a single 3.0 V supply. Designs migrating between the two must account for the narrower supply window of the AD9283BRS-100.
Do both devices provide an on-chip sample-and-hold or track-and-hold amplifier?
Yes. The AD9280ARSZRL includes an on-chip sample-and-hold amplifier, and the AD9283BRS-100 includes an on-chip track-and-hold function. Both allow direct AC-coupled or DC-coupled analog input sampling without an external hold circuit.
What is the resolution and output format of these ADCs?
Both the AD9280ARSZRL and the AD9283BRS-100 are 8-bit analog-to-digital converters. Each provides a parallel digital output bus for the converted 8-bit result, suitable for interfacing with standard digital signal processors and FPGAs.
Which device is better suited for high-speed signal acquisition?
The AD9283BRS-100 is better suited for high-speed signal acquisition because its 100 MSPS maximum sampling rate is more than three times that of the AD9280ARSZRL at 32 MSPS. The higher rate supports wider input bandwidth and better capture of fast transient signals, provided the 3.0 V supply and 20-lead SSOP package fit the design.
Are both parts available in production quantities from authorized distributors?
Both the AD9280ARSZRL and AD9283BRS-100 are Analog Devices products and are listed by authorized distributors such as DigiKey and Mouser. Availability, packaging (the AD9280ARSZRL suffix indicates tape-and-reel), and lifecycle status should be confirmed against current distributor stock and the official Analog Devices datasheet before ordering.