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 ADN2812ACPZ and ADN2814ACPZ-RL7 are both clock and data recovery ICs from the same Analog Devices ADN28xx family, sharing a 5 mm × 5 mm 32-lead LFCSP package and a 3.3 V supply rail. The ADN2814ACPZ-RL7 extends the upper data rate to 2.7 Gbps versus 2.7 Gbps for the ADN2812ACPZ, and both support the same serial data interface and operating temperature range. The ADN2814ACPZ-RL7 is therefore a viable functional replacement candidate for the ADN2812ACPZ in most applications, provided the system timing budget and jitter requirements are validated against the target data rate.
Data Rate Range
High match
Package Type
High match
Supply Voltage
High match
Jitter Performance
Validation required
Parts at a glance
Part B
ADN2814ACPZ-RL7
ADI公司
- Lifecycle
- Active
- Stock
- 2881 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-RL7 | 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) | Both cover the same SONET/SDH and Fibre Channel rates, so neither is a drop-in for higher-rate links beyond 2.7 Gb/s. |
| Jitter Tolerance / Compliance | SONET/SDH jitter tolerance compliant | SONET/SDH jitter tolerance compliant with integrated limiting amplifier | Jitter tolerance determines whether the CDR can reliably recover clock and data in noisy optical links; both meet SONET/SDH masks. |
| Integrated Limiting Amplifier | No | Yes | The ADN2814 includes a limiting amplifier, reducing external component count and board space versus the ADN2812. |
| Output Interface | CML-compatible data and clock outputs | CML-compatible data and clock outputs | Matching output signaling allows either device to drive the same downstream SerDes or logic without level shifting. |
| Supply Voltage | 3.3 V | 3.3 V | Identical supply requirements mean the same power rail and decoupling scheme can be reused. |
| Package | 32-lead LFCSP | 32-lead LFCSP | Same package and footprint enable PCB layout reuse, though pin functions should be verified before substitution. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical industrial temperature range supports the same environmental qualification for both parts. |
| Lock Detect / Loss of Lock Indicator | Provided | Provided | Lock status signaling is needed for system monitoring and fault handling; both devices expose this function. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADN2812ACPZ | ADN2814ACPZ-RL7 |
|---|---|---|
| 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 ADN2812ACPZ and ADN2814ACPZ-RL7?
Both are Analog Devices clock and data recovery (CDR) ICs for optical and high-speed serial applications. The ADN2812ACPZ is a continuous-rate CDR with a specified operating range of 12.3 Mb/s to 2.7 Gb/s, while the ADN2814ACPZ-RL7 is a continuous-rate CDR specified for 12.3 Mb/s to 2.7 Gb/s with integrated limiting amplifier and quantizer functions. Both are offered in a 32-lead LFCSP package.
Are the ADN2812ACPZ and ADN2814ACPZ-RL7 pin-compatible?
Both devices are supplied in the same 32-lead LFCSP (5 mm × 5 mm) package, and Analog Devices documents them as pin-compatible CDR devices. However, designers should confirm the pin function assignments in the respective datasheets before substituting one for the other in an existing layout.
What is the difference in data rate range between the two parts?
The ADN2812ACPZ supports continuous data rates from 12.3 Mb/s to 2.7 Gb/s. The ADN2814ACPZ-RL7 also supports continuous data rates from 12.3 Mb/s to 2.7 Gb/s. Both cover the same specified rate range, so rate coverage alone does not distinguish them.
Do both devices include a limiting amplifier and quantizer?
The ADN2814ACPZ-RL7 integrates a limiting amplifier and quantizer ahead of the CDR, allowing it to accept small-signal optical receiver outputs directly. The ADN2812ACPZ is a CDR function without the same integrated limiting amplifier/quantizer front end. This functional difference should be considered when selecting between the two.
What package and temperature grade do these parts use?
Both the ADN2812ACPZ and ADN2814ACPZ-RL7 are offered in a 32-lead LFCSP package and are specified over the industrial temperature range of −40 °C to +85 °C. The "ACPZ" suffix denotes the lead-free, RoHS-compliant LFCSP package option.
What does the "-RL7" suffix on ADN2814ACPZ-RL7 indicate?
The "-RL7" suffix denotes tape-and-reel packaging in a 7-inch reel format, as defined in Analog Devices ordering information. The ADN2812ACPZ is supplied in standard tray or tube packaging. The electrical device is the same; only the packaging quantity and format differ.
Can the ADN2812ACPZ and ADN2814ACPZ-RL7 be used interchangeably in a design?
Because the two devices differ in integrated front-end functionality (the ADN2814ACPZ-RL7 includes a limiting amplifier and quantizer), they are not functionally interchangeable without design review. Substitution requires verifying input signal levels, jitter performance, and board-level pin functions against the respective Analog Devices datasheets.
What supply voltage do these CDR devices require?
Both the ADN2812ACPZ and ADN2814ACPZ-RL7 operate from a single 3.3 V supply (3.0 V to 3.6 V range) as specified in their Analog Devices datasheets. Designers should confirm the exact supply tolerance and decoupling requirements in the datasheet before layout.