Part A
AD9203ARU
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7565 PCS
- Series
- Acquisição de dados - Analogo para Convertedores Digitais (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD9203ARU is a functional replacement candidate for the AD9200ARSZRL, sharing the same 10-bit resolution, 20 MSPS sampling rate, and 3 V supply architecture, but it is not a drop-in replacement due to differing package and pinout. Designers must validate the TSSOP-28 footprint, input configuration, and clock interface before substitution.
Resolution and Sampling Rate
High match
Supply Voltage
High match
Package Type
Validation required
Pin Configuration
Validation required
Parts at a glance
Part B
AD9200ARSZRL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6729 PCS
- Package
- SSOP-28
- Series
- Acquisição de dados - Analogo para Convertedores Digitais (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 | AD9200ARSZRL | AD9203ARU | Why it matters |
|---|---|---|---|
| Resolution | 10 bit | 10 bit | Both converters provide 10-bit resolution, so quantization noise floor and SNR capability are comparable for a given input range. |
| Sampling Rate | 20 MSPS | 40 MSPS | The AD9203 supports roughly double the maximum sample rate, enabling wider signal bandwidth or higher oversampling in the application. |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 3.6 V | The AD9200 tolerates a wider supply range including 5 V, while the AD9203 is limited to 3.6 V maximum, affecting system power rail compatibility. |
| Analog Input Range | 1 V p-p to 2 V p-p (programmable) | 1 V p-p to 2 V p-p (programmable) | Both offer a programmable input span, allowing matching to different front-end signal amplitudes without external attenuation. |
| Package / Pin Count | 28-lead SSOP | 28-lead TSSOP | Different package footprints and thermal characteristics mean the PCB layout and assembly must be redesigned when substituting one for the other. |
| Power Consumption | Approximately 100 mW at 20 MSPS | Approximately 100 mW at 40 MSPS | Similar power draw despite the higher sample rate of the AD9203 affects thermal budgeting and power supply sizing in the design. |
| SNR | Approximately 59 dB | Approximately 59 dB | Comparable signal-to-noise ratio indicates similar dynamic performance for the same input conditions. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical industrial temperature ratings mean both parts 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 | AD9203ARU | AD9200ARSZRL |
|---|---|---|
| Part Status | Obsolete | Active |
| Base Product Number | AD9203 | - |
| Number of Bits | 10 | 10 |
| Sampling Rate (Per Second) | 40M | - |
| 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 | External, Internal |
| Voltage - Supply, Analog | 2.7V ~ 3.6V | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 3.6V | 2.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | - |
| Packaging | Tube | - |
| Sampling Rate(Per Second) | - | 20M |
| Number of A/D Converters | - | 1 |
Frequently asked questions
What are the key differences between the AD9200ARSZRL and the AD9203ARU?
The AD9200ARSZRL is a 10-bit, 20 MSPS analog-to-digital converter packaged in a 28-lead SSOP, while the AD9203ARU is a 10-bit, 40 MSPS ADC packaged in a 28-lead TSSOP. The AD9203ARU offers a higher maximum sampling rate (40 MSPS vs. 20 MSPS) and operates from a 2.7 V to 3.6 V supply, whereas the AD9200ARSZRL operates from a 2.7 V to 5.5 V supply. Both are 10-bit pipeline ADCs from Analog Devices, but they differ in speed grade, package, and supply range.
Can the AD9200ARSZRL and AD9203ARU be used as direct drop-in replacements for each other?
No. Although both are 10-bit ADCs in 28-lead packages, the AD9200ARSZRL uses a 28-lead SSOP (RS suffix) and the AD9203ARU uses a 28-lead TSSOP (RU suffix). The package footprints and pin assignments differ, and the maximum sampling rates (20 MSPS vs. 40 MSPS) and supply voltage ranges differ. A direct drop-in replacement is not supported without verifying pinout, footprint, and timing compatibility against the respective datasheets.
What are the maximum sampling rates of the AD9200ARSZRL and AD9203ARU?
The AD9200ARSZRL has a maximum sampling rate of 20 MSPS. The AD9203ARU has a maximum sampling rate of 40 MSPS. The higher speed grade of the AD9203ARU makes it suitable for applications requiring wider input bandwidth or higher Nyquist frequencies.
What are the supply voltage requirements for the AD9200ARSZRL and AD9203ARU?
The AD9200ARSZRL operates from a single 2.7 V to 5.5 V supply. The AD9203ARU operates from a 2.7 V to 3.6 V supply. Designs migrating between the two devices must confirm that the system supply rail falls within the respective operating range.
Do the AD9200ARSZRL and AD9203ARU have the same resolution and ADC architecture?
Yes. Both devices are 10-bit monolithic pipeline analog-to-digital converters manufactured by Analog Devices. They share the same 10-bit resolution and pipeline architecture, but differ in speed grade, package, and supply range.
What package types are used for the AD9200ARSZRL and AD9203ARU?
The AD9200ARSZRL is supplied in a 28-lead SSOP (Shrink Small Outline Package). The AD9203ARU is supplied in a 28-lead TSSOP (Thin Shrink Small Outline Package). PCB land patterns and thermal characteristics differ between the two package types, so layout must be reviewed when substituting one for the other.
Are the AD9200ARSZRL and AD9203ARU RoHS compliant?
The AD9200ARSZRL carries the "Z" suffix in its part number, which denotes a RoHS-compliant lead-free package per Analog Devices' ordering nomenclature. The AD9203ARU is also offered as a RoHS-compliant part. Designers should confirm the specific ordering code and compliance status on the manufacturer's datasheet or an authorized distributor listing before finalizing a bill of materials.