Part A
ADN2812ACPZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6938 PCS
- Package
- WFQFN-32
- Series
- Clock-Timing - Application Specific
Replacement verdict
Compatible functional replacement candidate
The ADN2812ACPZ and ADN2812ACP are functionally equivalent clock and data recovery ICs sharing the same core specifications, with the primary distinction being the package finish (RoHS-compliant lead-free vs. standard). The ADN2812ACPZ is a suitable functional replacement candidate for the ADN2812ACP, provided the RoHS-compliant package finish is acceptable for the target application.
Function and Data Rate
High match
Package Type and Pinout
High match
Operating Temperature Range
High match
Package Finish and RoHS Compliance
Validation required
Parts at a glance
Part B
ADN2812ACP
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6154 PCS
- Package
- WFQFN-32
- 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 | ADN2812ACPZ | ADN2812ACP | Why it matters |
|---|---|---|---|
| Package / Case | 32-WFQFN Exposed Pad, CSP (5x5) | 32-WFQFN Exposed Pad, CSP (5x5) | Both use the same LFCSP package footprint, so board layout is compatible; the Z suffix denotes Pb-free/RoHS compliance rather than a different physical package. |
| RoHS / Lead-Free Status | RoHS compliant, Pb-free (Z suffix) | Not Pb-free (contains lead) | The Z suffix indicates lead-free/RoHS construction; this affects regulatory compliance and solder process requirements, though electrical function is the same. |
| Function | Continuous-rate clock and data recovery (CDR) IC | Continuous-rate clock and data recovery (CDR) IC | Both are the same CDR device, so they serve identical signal-recovery roles in optical/backplane receivers. |
| Data Rate Range | 12.3 Mb/s to 2.7 Gb/s (continuous) | 12.3 Mb/s to 2.7 Gb/s (continuous) | Defines the range of serial link speeds the CDR can lock to; identical range means equivalent application coverage. |
| Supply Voltage | 3.3 V (3.0 V to 3.6 V) | 3.3 V (3.0 V to 3.6 V) | Confirms both parts operate from the same rail, so power supply design is unchanged between them. |
| Output Type | CML-compatible differential outputs | CML-compatible differential outputs | Output signaling must match the downstream SerDes/PHY interface; identical output type ensures drop-in signal compatibility. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Determines suitability for industrial/extended environments; matching ranges mean equal thermal qualification. |
| Jitter (RMS) | Typically ~0.6 ps RMS (per datasheet) | Typically ~0.6 ps RMS (per datasheet) | Low jitter is critical for bit-error-rate performance in high-speed links; identical jitter specs mean equivalent signal integrity. |
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 | ADN2812ACPZ | ADN2812ACP |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| PLL | Yes | Yes |
| Main Purpose | SONET/SDH | SONET/SDH |
| Input | CML | CML |
| Output | CML | CML |
| Ratio - Input: Output | 1:2 | 1:2 |
| Differential - Input: Output | Yes/Yes | Yes/Yes |
| Frequency - Max | 2.7GHz | 2.7GHz |
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Circuits | 1 | - |
Frequently asked questions
What is the difference between ADN2812ACPZ and ADN2812ACP?
The ADN2812ACPZ is the RoHS-compliant, lead-free (Pb-free) version of the ADN2812ACP. Both are functionally identical continuous-rate clock and data recovery ICs in a 32-lead LFCSP package; the "Z" suffix denotes Pb-free/RoHS compliance per Analog Devices part numbering conventions.
Are ADN2812ACPZ and ADN2812ACP electrically and functionally interchangeable?
Yes. Both devices share the same die, specifications, and 32-lead LFCSP pinout. The only documented difference is the package finish/plating (Pb-free vs. tin-lead), so they are functionally interchangeable in designs that accept the respective finish.
What data rates does the ADN2812 support?
The ADN2812 is a continuous-rate clock and data recovery device supporting serial data rates from 12.3 Mb/s to 2.7 Gb/s, with automatic rate detection across that range.
What package and pin count do the ADN2812ACPZ and ADN2812ACP use?
Both parts are supplied in a 32-lead LFCSP (lead frame chip scale package), allowing the same PCB land pattern to be used for either version.
Which version should be selected for RoHS-compliant production?
The ADN2812ACPZ should be selected for RoHS-compliant assemblies because its "Z" suffix indicates Pb-free, RoHS-compliant construction. The ADN2812ACP is the non-RoHS (tin-lead) variant.
Do both devices require the same external components and supply voltages?
Yes. Because they are the same silicon in the same package with identical pinout, both versions use the same supply rails and external component values as specified in the ADN2812 datasheet.
Can the ADN2812ACPZ and ADN2812ACP be mixed on the same assembly?
They can be used on the same PCB design since the footprint and pinout are identical, but mixing finishes on one assembly may conflict with a single reflow profile and RoHS compliance requirements, so the chosen finish should match the assembly's process and compliance needs.