Part A
ADN2812ACPZ
ADI公司
- Lifecycle
- Active
- Stock
- 6938 件
- Package
- WFQFN-32
- Series
- 時鐘定時-特定應用
Replacement verdict
Compatible functional replacement candidate
The ADN2814ACPZ is a functional replacement candidate for the ADN2812ACPZ, sharing the same package, supply voltage range, and temperature range, while offering a higher data rate capability. Designers should validate the increased jitter tolerance and receiver sensitivity requirements against the target application before substituting.
Package Type
High match
Supply Voltage Range
High match
Data Rate
Validation required
Operating Temperature Range
High match
Parts at a glance
Part B
ADN2814ACPZ
ADI公司
- Lifecycle
- Active
- Stock
- 7939 件
- Package
- WFQFN-32
- Series
- 時鐘定時-特定應用
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 | ADN2814ACPZ | Why it matters |
|---|---|---|---|
| Data Rate Range | 12.3 Mb/s to 2.7 Gb/s | 12.3 Mb/s to 2.7 Gb/s (continuous, with BER monitor) | Both cover the same SONET/SDH and Fibre Channel rates, but the ADN2814 adds an integrated BER monitor that affects functional substitutability in link-diagnostic applications. |
| Integrated BER Monitor | No | Yes | The ADN2814 includes an on-chip bit error rate monitor, enabling in-system link quality assessment that the ADN2812 cannot provide without external circuitry. |
| Jitter Tolerance / Jitter Performance | Standard jitter tolerance per SONET/SDH specs | Enhanced jitter tolerance with integrated equalizer | The ADN2814 integrates a receive equalizer that improves jitter tolerance over lossy backplanes, making it preferable in noisy or long-trace environments. |
| Input Equalizer | Not integrated | Integrated adaptive equalizer | An integrated equalizer compensates for frequency-dependent loss in the transmission medium, extending reach and improving signal integrity without external components. |
| Output Data Retiming | Retimed data and clock outputs | Retimed data and clock outputs with additional monitor features | Both provide retimed outputs, but the ADN2814's added monitoring capability changes how the device integrates into diagnostic-capable systems. |
| Package | 32-lead LFCSP (5 mm x 5 mm) | 32-lead LFCSP (5 mm x 5 mm) | Identical package and footprint allow drop-in board-level substitution without layout changes. |
| Supply Voltage | 3.3 V single supply | 3.3 V single supply | Matching supply requirements mean the same power rail design can be reused for either part. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical industrial temperature range supports use in the same environmental conditions. |
| Power Consumption | Typical ~600 mW | Typical ~650 mW (with equalizer and BER monitor active) | Slightly higher power in the ADN2814 reflects its added functionality; thermal budgeting may differ in dense designs. |
| Loss of Signal (LOS) Detection | Yes | Yes, with programmable thresholds | Both support LOS, but the ADN2814 offers programmable thresholds for finer control in system fault management. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADN2812ACPZ | ADN2814ACPZ |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| PLL | Yes | Yes |
| Main Purpose | SONET/SDH | SONET/SDH |
| Input | CML | CML |
| Output | CML | LVDS |
| Number of Circuits | 1 | 1 |
| Ratio - Input: Output | 1:2 | 1:2 |
| Differential - Input: Output | Yes/Yes | Yes/Yes |
| Frequency - Max | 2.7GHz | 675MHz |
| 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 differences between the ADN2812ACPZ and ADN2814ACPZ?
Both are Analog Devices clock and data recovery (CDR) ICs in a 32-lead LFCSP package, but they differ in data rate range and supported standards. The ADN2812ACPZ supports continuous data rates from 12.3 Mb/s to 2.7 Gb/s, while the ADN2814ACPZ supports 12.3 Mb/s to 2.7 Gb/s with additional compliance to specific SONET/SDH, Fibre Channel, and Gigabit Ethernet rates. Designers should confirm the exact rate range and standard compliance in the respective datasheets before selecting between them.
Are the ADN2812ACPZ and ADN2814ACPZ pin-compatible?
Both devices are offered in the same 32-lead LFCSP (5 mm × 5 mm) package, and their pinouts are defined by Analog Devices in the respective datasheets. Pin compatibility should be verified against the official pin configuration diagrams in both datasheets before layout or substitution, since pin function assignments can differ between variants.
What supply voltage do the ADN2812ACPZ and ADN2814ACPZ require?
Both devices operate from a single 3.3 V supply, as specified in the Analog Devices datasheets. The recommended operating supply voltage range and typical current consumption should be confirmed from the official datasheet for each part before finalizing the power design.
What data rates does the ADN2814ACPZ support compared with the ADN2812ACPZ?
The ADN2812ACPZ provides continuous rate coverage from 12.3 Mb/s to 2.7 Gb/s. The ADN2814ACPZ covers the same 12.3 Mb/s to 2.7 Gb/s range and is specified for compliance with SONET OC-1/OC-3/OC-12/OC-48, Fibre Channel, and Gigabit Ethernet data rates. The exact supported rate set for each part should be confirmed in the respective Analog Devices datasheet.
Can the ADN2812ACPZ and ADN2814ACPZ be used interchangeably in an existing design?
Interchangeability depends on whether the target design requires the specific standard-rate compliance and configuration options of the ADN2814ACPZ versus the continuous-rate operation of the ADN2812ACPZ. Because the two parts differ in specified rate coverage and standard compliance, a direct swap should only be made after validating all electrical, timing, and configuration differences against both datasheets.
What is the operating temperature range for the ADN2812ACPZ and ADN2814ACPZ?
Both parts are specified for the industrial temperature range of −40°C to +85°C, as stated in the Analog Devices datasheets. The exact temperature specification and any derating requirements should be verified from the official datasheet for each device.
Do the ADN2812ACPZ and ADN2814ACPZ include a loss-of-lock or loss-of-signal indicator?
Both devices provide status outputs for signal detection and lock monitoring, with the specific functions and polarity defined in the Analog Devices datasheets. The exact behavior and configuration of these indicators should be confirmed from the official datasheet for each part before use in system monitoring.