Part A
AD9125BCPZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3542 Stückzahl
- Package
- LFCSP-72
- Series
- Data Acquisition von Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9125BCPZ and AD9125BCPZRL are functionally identical dual 16-bit 123 MSPS TxDAC+ digital-to-analog converters in the same 72-lead LFCSP package, differing only in packaging format (tray vs. tape-and-reel). The AD9125BCPZRL is a valid drop-in replacement for the AD9125BCPZ, with the sole consideration being the reel packaging quantity and handling format for automated assembly lines.
Resolution and Sample Rate
High match
Package and Pinout
High match
Supply Voltage and Interface
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD9125BCPZRL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 696 Stückzahl
- Package
- VFQFN-72
- Series
- Data Acquisition von Digital to Analog Converters (DAC)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD9125BCPZ | AD9125BCPZRL | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Determines the quantization accuracy of the DAC output; both parts match, so reconstruction fidelity is identical. |
| Number of DAC Channels | 2 | 2 | Dual-channel architecture is required for I/Q signal generation; identical channel count ensures functional interchangeability. |
| Maximum Update Rate | 1000 MSPS | 1000 MSPS | Sets the maximum sample rate and achievable output bandwidth; matching rates mean identical dynamic performance envelopes. |
| Output Interface | LVDS (DDR) | LVDS (DDR) | Defines the digital input signaling and timing; identical interface allows the same FPGA/ASIC driver design to be reused. |
| Supply Voltage | 1.8 V / 3.3 V | 1.8 V / 3.3 V | Determines power rail requirements on the board; identical rails mean no power design changes are needed. |
| Package / Case | 72-Lead LFCSP (10x10 mm) | 72-Lead LFCSP (10x10 mm) | Footprint and thermal characteristics must match for drop-in replacement; identical package ensures PCB compatibility. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Defines the environmental envelope for reliable operation; matching ranges confirm suitability for the same applications. |
| Packaging / Reel Quantity | Tray / Tube (individual) | Tape & Reel (1500 units) | Affects manufacturing handling and pick-and-place assembly; the reel variant suits high-volume automated production while the tray variant suits prototyping. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9125BCPZ | AD9125BCPZRL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | TxDAC+® | TxDAC+® |
| Part Status | Active | Active |
| Number of Bits | 16 | 16 |
| Number of D/A Converters | 2 | 2 |
| Settling Time | 20ns (Typ) | 20ns (Typ) |
| Output Type | Current - Unbuffered | Current - Unbuffered |
| Differential Output | Yes | Yes |
| Data Interface | Parallel | Parallel |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 3.13V ~ 3.47V | 3.13V ~ 3.47V |
| Voltage - Supply, Digital | 1.71V ~ 1.89V | 1.71V ~ 1.89V |
| INL / DNL(LSB) | ±3.7, ±2.1 | ±3.7, ±2.1 |
| Architecture | Current Source | Current Source |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What is the difference between AD9125BCPZ and AD9125BCPZRL?
The AD9125BCPZ and AD9125BCPZRL are the same device: a dual 16-bit, 1000 MSPS TxDAC+ digital-to-analog converter in a 72-lead LFCSP package. The "RL" suffix denotes tape-and-reel packaging, while the base part number is supplied in trays. Electrical specifications and die are identical.
Are AD9125BCPZ and AD9125BCPZRL electrically and functionally interchangeable?
Yes. Both variants share the same datasheet, die, and 72-lead LFCSP package. The only difference is the shipping format (tray vs. tape-and-reel), so they are interchangeable in a given design provided the assembly process accommodates the respective packaging.
What are the key performance specifications of the AD9125?
The AD9125 is a dual 16-bit DAC with a maximum update rate of 1000 MSPS, an on-chip 32-bit numerically controlled oscillator, and a serial peripheral interface. It operates from 1.8 V and 3.3 V supplies and is specified for operation over the industrial temperature range. Refer to the official Analog Devices datasheet for complete verified limits.
What package does the AD9125BCPZ use?
The AD9125BCPZ is supplied in a 72-lead LFCSP (lead frame chip scale package). The AD9125BCPZRL uses the identical package; only the delivery format differs.
Which variant should be selected for high-volume automated assembly?
For high-volume pick-and-place assembly, the AD9125BCPZRL tape-and-reel format is generally preferred because it supports automated feeders. The AD9125BCPZ tray format is typically used for prototyping or low-volume runs.
Do both variants carry the same moisture sensitivity and handling requirements?
Yes. Because both are the same LFCSP package and die, they share the same moisture sensitivity level and handling precautions as stated in the manufacturer datasheet. Packaging format does not change the device's MSL rating.
Can the AD9125BCPZRL be used as a drop-in replacement for the AD9125BCPZ?
Yes, from an electrical and footprint standpoint they are drop-in equivalent. The only consideration is that the reel packaging must be compatible with the assembly line's feeder setup; the PCB land pattern and pinout are unchanged.