Part A
AD9220AR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5982 Stückzahl
- Package
- SOIC-28
- Series
- Datenerfassung mit Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD9223AR is a viable functional replacement candidate for the AD9220AR, sharing the same 12-bit resolution, 28-lead SOIC package, and analog input architecture, while offering a faster 3 MSPS sampling rate in place of the AD9220AR's 10 MSPS capability. Designers should validate timing margins and power budget against the target application before committing to the substitution.
Resolution
High match
Package Type
High match
Sampling Rate
Validation required
Power Consumption
Validation required
Parts at a glance
Part B
AD9223AR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 877 Stückzahl
- Package
- SOIC-28
- Series
- Datenerfassung mit 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 | AD9220AR | AD9223AR | Why it matters |
|---|---|---|---|
| Resolution | 12 bits | 12 bits | Both converters provide 12-bit resolution, so quantization accuracy is equivalent and neither offers a resolution advantage for substitutability. |
| Maximum Sampling Rate | 10 MSPS | 3 MSPS | The AD9220AR supports a much higher throughput; substituting the slower AD9223AR may violate timing requirements in high-speed acquisition designs. |
| Input Type | Differential (single-ended capable) | Differential (single-ended capable) | Both accept differential inputs with single-ended capability, so analog front-end topology can remain unchanged when swapping parts. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Identical 5 V single-supply operation means the power rail design does not need modification for either device. |
| Power Consumption | ~250 mW typical | ~100 mW typical | The AD9223AR dissipates significantly less power, which matters for thermal budget and energy-sensitive applications. |
| SNR (Signal-to-Noise Ratio) | ~70 dB | ~70 dB | Comparable SNR indicates similar noise performance, so dynamic range is largely preserved across the two parts. |
| Package | 28-lead SOIC | 28-lead SOIC | Matching package and pinout allow a drop-in footprint replacement without PCB redesign. |
| Output Interface | Parallel CMOS | Parallel CMOS | Identical parallel CMOS output simplifies digital interface compatibility when interchanging the devices. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Same industrial temperature range ensures 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 | AD9220AR | AD9223AR |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 12 | 12 |
| Sampling Rate(Per Second) | 10M | 3M |
| Data Interface | Parallel | Parallel |
| Number of A/D Converters | 1 | 7 |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Number of Inputs | 1 | - |
| Input Type | Differential, Single Ended | - |
| Configuration | S/H-ADC | - |
| Ratio - S / H: ADC | 1:1 | - |
| Architecture | Pipelined | - |
| Reference Type | External, Internal | - |
| Voltage - Supply, Analog | 5V | - |
| Voltage - Supply, Digital | 2.7V ~ 5.25V | - |
Frequently asked questions
What are the key differences between the AD9220AR and AD9223AR?
Both are 12-bit monolithic A/D converters from Analog Devices in a 28-lead SOIC package, but they differ in maximum sampling rate and power consumption. The AD9220AR is specified for 10 MSPS, while the AD9223AR is specified for 3 MSPS. The AD9220AR typically consumes more power to support its higher throughput.
What is the maximum sampling rate of each device?
The AD9220AR has a maximum sampling rate of 10 MSPS. The AD9223AR has a maximum sampling rate of 3 MSPS. Both are 12-bit converters.
Are the AD9220AR and AD9223AR pin-compatible?
Yes. Both devices are offered in the same 28-lead SOIC (R-28) package and share the same pinout, which allows the AD9223AR to be used as a lower-speed, lower-power drop-in option in an AD9220AR socket, provided the system timing and power budget are revalidated.
Do the AD9220AR and AD9223AR have the same resolution and input range?
Yes. Both are 12-bit A/D converters with a differential input and an on-chip sample-and-hold amplifier. Both support a 2 V peak-to-peak differential input span and operate from a single +5 V analog supply with a separate +3 V to +5 V digital supply.
How does power consumption compare between the two parts?
The AD9220AR consumes more power than the AD9223AR because it supports a higher maximum sampling rate. The AD9223AR is intended for lower-power, lower-speed applications. Exact power figures should be taken from the respective Analog Devices datasheets for the specific operating conditions.
Can the AD9223AR replace the AD9220AR in an existing design?
It can be considered only if the system does not require sampling rates above 3 MSPS and the reduced power consumption is acceptable. Because the pinout and package are the same, the substitution is straightforward electrically, but the timing, clock, and interface requirements must be verified against the AD9223AR datasheet before production use.
What output interface do the AD9220AR and AD9223AR provide?
Both devices provide a 12-bit parallel CMOS-compatible output with straight binary or twos complement coding, and both include an out-of-range indicator. The output timing is scaled to the respective maximum sampling rate of each device.