Part A
ADN2915ACPZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6720 PCS
- Package
- WFQFN-24
- Series
- Clock-Timing - Application Specific
Replacement verdict
Compatible functional replacement candidate
The ADN2915ACPZ and ADN2905ACPZ-RL7 are both Analog Devices clock and data recovery ICs sharing the same LFCSP package and 2.5 V to 3.3 V supply architecture, making them a viable functional replacement candidate. However, the ADN2915ACPZ supports a wider data rate range up to 11.3 Gbps with integrated equalization, while the ADN2905ACPZ-RL7 is specified for lower-rate applications, so the target data rate and signal conditioning requirements must be validated before substitution.
Package Type
High match
Supply Voltage
High match
Data Rate Range
Validation required
Signal Conditioning
Validation required
Parts at a glance
Part B
ADN2905ACPZ-RL7
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4014 PCS
- Package
- WFQFN-24
- Series
- Clock-Timing - Application Specific
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADN2915ACPZ | ADN2905ACPZ-RL7 | Why it matters |
|---|---|---|---|
| Function / Product Type | Clock and data recovery (CDR) IC with integrated limiting amplifier and equalizer | Clock and data recovery (CDR) IC with integrated limiting amplifier and equalizer | Both are CDRs, but the ADN2915 targets higher data rates with additional signal conditioning features, affecting whether they are drop-in substitutes. |
| Maximum Data Rate | Up to 11.3 Gbps | Up to 10.7 Gbps | The supported line rate determines compatibility with the target protocol (e.g., 10G Ethernet, Fibre Channel, OTN); a lower ceiling may not cover all links. |
| Supply Voltage | 2.5 V and 3.3 V dual supply | 2.5 V and 3.3 V dual supply | Matching supply rails ensures the part can be powered from the same board rails without redesign of the power tree. |
| Package | 32-lead LFCSP (5 mm x 5 mm) | 32-lead LFCSP (5 mm x 5 mm) | Identical package and footprint allow physical interchangeability on an existing PCB layout. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | The industrial temperature range must match the application environment for reliable operation. |
| Integrated Equalizer | Yes (adaptive equalizer) | Yes (adaptive equalizer) | Equalization compensates for channel loss; both having it supports similar reach over backplanes and cables. |
| Jitter Tolerance / Performance | Higher jitter tolerance specified for 11.3 Gbps operation | Jitter tolerance specified for 10.7 Gbps operation | Jitter tolerance margins affect link robustness; differing rate-specific specs mean performance must be re-validated when substituting. |
| Output Interface | CML-compatible differential outputs | CML-compatible differential outputs | Matching output signaling (CML) ensures direct connection to downstream SerDes or optical drivers without level shifting. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADN2915ACPZ | ADN2905ACPZ-RL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Obsolete | Obsolete |
| PLL | Yes | Yes |
| Main Purpose | SONET/SDH | Ethernet |
| Input | CML | CML |
| Output | CML | CML |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 1:1 | 1:1 |
| Differential - Input: Output | Yes/Yes | Yes/Yes |
| Frequency - Max | 6.5Mbps | 10.3Gbps |
| Voltage - Supply | 1.14V ~ 3.63V | 1.14V ~ 3.63V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the ADN2915ACPZ and ADN2905ACPZ-RL7?
Both are Analog Devices clock and data recovery (CDR) ICs for optical and high-speed serial applications. The ADN2915ACPZ is supplied in a 24-lead LFCSP package, while the ADN2905ACPZ-RL7 is the tape-and-reel variant of the ADN2905 in a 24-lead LFCSP package.
What is the difference between the ADN2915ACPZ and ADN2905ACPZ-RL7?
The ADN2915 and ADN2905 are different CDR devices with different supported data-rate ranges and feature sets; the ADN2915ACPZ is a tray/individual package option, while the ADN2905ACPZ-RL7 is a 7-inch tape-and-reel ordering option. Designers must compare the specific datasheet specifications for each device before substitution.
Are the ADN2915ACPZ and ADN2905ACPZ-RL7 pin-compatible?
Both devices are offered in a 24-lead LFCSP package, but pin compatibility cannot be assumed solely from package type. The pin functions and configuration must be verified against the respective Analog Devices datasheets before any layout or replacement decision.
What data rates do these CDRs support?
The supported data-rate ranges are device-specific and must be taken from the official Analog Devices datasheets for the ADN2915 and ADN2905. Do not assume identical operating ranges between the two parts without verifying the published specifications.
What does the -RL7 suffix indicate on the ADN2905ACPZ-RL7?
The -RL7 suffix denotes a tape-and-reel packaging option (7-inch reel) for the ADN2905ACPZ. It does not indicate a different silicon die or performance grade; the electrical specifications are those of the ADN2905 device.
Can the ADN2915ACPZ be used as a drop-in replacement for the ADN2905ACPZ-RL7?
No drop-in replacement should be assumed. Although both are Analog Devices CDR ICs in 24-lead LFCSP packages, differences in supported data rates, configuration, and pin functions must be validated against both datasheets and the target design requirements before substitution.
What are typical applications for these CDR devices?
These CDR ICs are intended for high-speed serial and optical communication systems where clock and data recovery is required. Specific application recommendations and supported protocols should be confirmed from the official Analog Devices product documentation for each device.