Part A
ADN2813ACPZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5865 PCS
- Package
- WFQFN-32
- Series
- Clock-Timing - Application Specific
Replacement verdict
Compatible functional replacement candidate
The ADN2813ACPZ and ADN2804ACPZ are both single-channel clock and data recovery ICs from Analog Devices in the same 32-lead LFCSP package, sharing a common footprint and supply architecture. The ADN2813ACPZ supports a broader data rate range extending to 2.7 Gbps, while the ADN2804ACPZ is specified for operation up to 2.5 Gbps. For applications operating within the ADN2804ACPZ data rate envelope, the ADN2813ACPZ can serve as a functional replacement candidate, though the extended rate capability and any associated configuration differences should be validated against the target design requirements before substitution.
Data Rate Range
High match
Package Type
High match
Supply Voltage
High match
Output Interface
Validation required
Parts at a glance
Part B
ADN2804ACPZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5465 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 | ADN2813ACPZ | ADN2804ACPZ | Why it matters |
|---|---|---|---|
| Data Rate Range | 10 Mbps to 675 Mbps | 10 Mbps to 675 Mbps | Defines the range of serial data rates the clock and data recovery circuit can lock to; matching ranges indicate similar application coverage. |
| Jitter (RMS, typical) | 5 ps RMS (typical) | 5 ps RMS (typical) | Output jitter directly affects bit error rate and link margin; comparable jitter supports similar signal integrity performance. |
| Input Sensitivity | 5 mV p-p (typical) | 5 mV p-p (typical) | Determines the minimum input amplitude the receiver can reliably recover; lower sensitivity values allow weaker signals to be detected. |
| Supply Voltage | 3.3 V | 3.3 V | Must match the system power rail; identical supply voltage simplifies board-level substitution. |
| Package / Pin Count | 32-Lead LFCSP | 32-Lead LFCSP | Package and pinout compatibility is essential for drop-in replacement on an existing PCB footprint. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Confirms the device can operate in the same environmental conditions, including industrial-grade applications. |
| Output Type | CML (Current Mode Logic) | CML (Current Mode Logic) | Output signaling standard must match the downstream SERDES or receiver interface for direct interoperability. |
| Integrated CDR Function | Clock and data recovery with limiting amplifier | Clock and data recovery with limiting amplifier | Both integrate CDR and limiting amplification, so functional substitutability in optical receiver modules is preserved. |
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 | ADN2813ACPZ | ADN2804ACPZ |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC,Analog Devices Inc. |
| Part Status | Active | Active |
| PLL | Yes | Yes |
| Main Purpose | SONET/SDH | SONET/SDH |
| Input | CML | CML |
| Output | LVDS | LVDS |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 1:2 | 1:2 |
| Differential - Input: Output | Yes/Yes | Yes/Yes |
| Frequency - Max | 1.25GHz | 622MHz |
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary functional differences between the ADN2813ACPZ and ADN2804ACPZ?
The ADN2813ACPZ is a continuous-rate clock and data recovery (CDR) IC with an integrated limiting amplifier, supporting data rates from 10 Mbps to 675 Mbps. The ADN2804ACPZ is a fixed-rate CDR IC with an integrated limiting amplifier designed for 622 Mbps (OC-12/STM-4) applications. The key distinction is that the ADN2813 provides continuous-rate operation across a wide range, while the ADN2804 is optimized for a single fixed rate.
Are the ADN2813ACPZ and ADN2804ACPZ pin-compatible?
Both devices are offered in a 32-lead LFCSP (5 mm × 5 mm) package, but pin compatibility cannot be assumed. Pin functions and configurations differ between the continuous-rate ADN2813 and the fixed-rate ADN2804. Designers must consult the respective manufacturer datasheets to verify pin assignments before considering any layout reuse.
What data rate does the ADN2804ACPZ support compared to the ADN2813ACPZ?
The ADN2804ACPZ is a fixed-rate CDR specified for 622 Mbps operation, targeting OC-12/STM-4 and similar SONET/SDH or Ethernet applications. The ADN2813ACPZ supports continuous data rates from 10 Mbps to 675 Mbps, allowing it to cover 622 Mbps as well as lower and higher rates within that range.
Do both devices include an integrated limiting amplifier?
Yes. Both the ADN2813ACPZ and ADN2804ACPZ integrate a limiting amplifier with the clock and data recovery function, allowing direct connection to optical receiver front-ends such as transimpedance amplifiers (TIAs) without an external limiting amplifier stage.
Which device is more suitable for multi-rate or multi-protocol designs?
The ADN2813ACPZ is the more suitable choice for multi-rate or multi-protocol designs because its continuous-rate CDR covers 10 Mbps to 675 Mbps, accommodating multiple standards with a single device. The ADN2804ACPZ is fixed at 622 Mbps and is intended for designs dedicated to that specific rate.
What is the supply voltage and typical power consumption of these devices?
Both the ADN2813ACPZ and ADN2804ACPZ operate from a single 3.3 V supply. Designers should refer to the official manufacturer datasheets for the exact specified current and power consumption figures, as these parameters must be verified against the latest published documentation rather than assumed.
Can the ADN2804ACPZ be used as a drop-in replacement for the ADN2813ACPZ in an existing design?
No. Because the ADN2813ACPZ is a continuous-rate CDR (10 Mbps to 675 Mbps) and the ADN2804ACPZ is a fixed-rate 622 Mbps CDR, they are not functionally equivalent. A drop-in replacement would require verification of pin assignments, control interface behavior, loop filter configuration, and rate-specific performance against both datasheets, and is not supported as a direct substitution.