Part A
AD9280ARSZRL
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4547 PCS
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD9283BRS-50 is a viable functional replacement candidate for the AD9280ARSZRL in many 8-bit ADC applications, though it is not a pin-for-pin drop-in. Both devices share 8-bit resolution and a 28-lead SSOP footprint, but the AD9283BRS-50 offers a faster 50 MSPS conversion rate versus the AD9280ARSZRL's 32 MSPS, while the AD9280ARSZRL provides a wider input bandwidth and a flexible differential input range. Designers must validate supply voltage, input drive configuration, and timing margins before substituting, as the two parts differ in analog input architecture and power supply requirements.
Resolution
High match
Package Type
High match
Sampling Rate
Validation required
Analog Input Configuration
Validation required
Parts at a glance
Part B
AD9283BRS-50
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 2168 PCS
- Package
- SSOP-20
- Series
- Acquisition de données - Convertisseur analogique - numérique (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-50 | Why it matters |
|---|---|---|---|
| Resolution | 8 bits | 8 bits | Both are 8-bit ADCs, so quantization accuracy is equivalent for substitutability. |
| Sampling Rate | 32 MSPS | 50 MSPS | The AD9283BRS-50 supports a 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 accepts a wider supply range, offering more flexibility in mixed-voltage systems. |
| Analog Input Range | 1 V p-p to 2 V p-p (configurable) | 1 V p-p | The AD9280 allows a configurable input span, which can improve dynamic range for larger signals. |
| Power Consumption | 95 mW typical | 90 mW typical | Lower power dissipation is important for thermal budget and battery-powered applications. |
| Package | 28-lead SSOP | 20-lead SSOP | Different package footprints affect PCB layout and may require board redesign 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 ensure equivalent environmental robustness. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9280ARSZRL | AD9283BRS-50 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 8 | 8 |
| Sampling Rate(Per Second) | - | 50M |
| 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-50?
The AD9280ARSZRL is a 8-bit, 32 MSPS analog-to-digital converter with an on-chip sample-and-hold amplifier, available in a 28-lead SSOP package. The AD9283BRS-50 is an 8-bit, 50 MSPS ADC with an on-chip track-and-hold, offered in a 20-lead SSOP package. The primary differences are sampling rate (32 MSPS vs 50 MSPS), package size (28-lead vs 20-lead SSOP), and power consumption characteristics.
Are the AD9280ARSZRL and AD9283BRS-50 pin-compatible?
No. The AD9280ARSZRL uses a 28-lead SSOP package, while the AD9283BRS-50 uses a 20-lead SSOP package. The different pin counts and pin assignments mean they are not pin-compatible and cannot be directly interchanged on the same PCB footprint.
What are the maximum sampling rates of these two ADCs?
The AD9280ARSZRL has a maximum sampling rate of 32 MSPS. The AD9283BRS-50 has a maximum sampling rate of 50 MSPS. The higher sampling rate of the AD9283BRS-50 makes it suitable for applications requiring wider input bandwidth or higher Nyquist frequency.
Do both devices operate from a single 3 V supply?
Yes. Both the AD9280ARSZRL and AD9283BRS-50 are specified for single-supply operation at 3 V. The AD9280 operates from a 2.7 V to 5.5 V supply, while the AD9283 is specified for 3 V operation. Designers should verify the exact supply range and current consumption from the respective datasheets for their target operating conditions.
What is the resolution of the AD9280ARSZRL and AD9283BRS-50?
Both devices are 8-bit analog-to-digital converters. The AD9280ARSZRL provides 8-bit resolution at up to 32 MSPS, and the AD9283BRS-50 provides 8-bit resolution at up to 50 MSPS. Neither device offers higher resolution options within these part numbers.
Can the AD9283BRS-50 be used as a drop-in replacement for the AD9280ARSZRL?
No. Because the two devices differ in package (20-lead vs 28-lead SSOP), pinout, and maximum sampling rate, the AD9283BRS-50 is not a drop-in replacement for the AD9280ARSZRL. Any substitution requires a PCB redesign and validation of timing, interface, and analog input requirements against the target design.
What are the typical applications for each converter?
The AD9280ARSZRL, with its 32 MSPS rate and on-chip sample-and-hold, is suited to applications such as video digitization, imaging, and general-purpose data acquisition. The AD9283BRS-50, with its higher 50 MSPS rate, is better suited to higher-speed signal processing, communications, and instrumentation front ends where wider input bandwidth is required. Both are 8-bit converters, so resolution-sensitive applications should account for that limitation.