Part A
AD9122BCPZRL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5326 PCS
- Package
- LFCSP-72
- Series
- Acquisição de dados - Convertedores digitais para analógicos (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9122BCPZ and AD9122BCPZRL are functionally identical dual 16-bit 1230 MSPS TxDAC+ digital-to-analog converters in the same 72-lead LFCSP package, differing only in packaging format (tray vs. tape-and-reel). They are fully interchangeable for design and production purposes, with the RL variant suited to automated high-volume assembly lines.
Resolution and Sample Rate
High match
Package and Pinout
High match
Supply and Interface
High match
Packaging Format
High match
Parts at a glance
Part B
AD9122BCPZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5001 PCS
- Package
- LFCSP-72
- Series
- Acquisição de dados - Convertedores digitais para analógicos (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 | AD9122BCPZ | AD9122BCPZRL | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Determines the quantization accuracy of the DAC output; both parts share the same resolution so signal fidelity is equivalent. |
| Number of DAC Channels | 2 | 2 | Dual-channel architecture enables I/Q signal generation; identical channel count means the same system topology can be used. |
| Maximum Update Rate | 1230 MSPS | 1230 MSPS | Sets the maximum sample rate for wideband signal synthesis; matching rates ensure identical bandwidth capability. |
| Output Interface | LVDS (DDR) | LVDS (DDR) | Defines the digital input signaling and timing; identical interface allows the same FPGA/ASIC driver design. |
| Supply Voltage | 1.8 V / 3.3 V | 1.8 V / 3.3 V | Determines power rail requirements; identical voltages mean the same power supply design can be reused. |
| Package / Case | 72-Lead LFCSP (10x10 mm) | 72-Lead LFCSP (10x10 mm) | Footprint and thermal characteristics must match for board-level drop-in compatibility; both use the same package. |
| Packaging / Reel Size | Tray | Tape & Reel | Affects manufacturing handling and assembly line feed method; the RL suffix denotes reel packaging for automated pick-and-place. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Defines the environmental envelope for reliable operation; identical ranges ensure the same application conditions apply. |
| RoHS Compliance | Yes | Yes | Both parts meet lead-free/RoHS requirements, so no compliance difference exists for regulated markets. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9122BCPZRL | AD9122BCPZ |
|---|---|---|
| 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 | LVDS - Parallel | LVDS - 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 AD9122BCPZ and AD9122BCPZRL?
The AD9122BCPZ and AD9122BCPZRL are the same device: a dual 16-bit, 1230 MSPS TxDAC+ digital-to-analog converter in a 72-lead LFCSP (CP-72-2) package. The "RL" suffix denotes tape-and-reel packaging, while the base part number denotes tray packaging. Electrical specifications, die, and package are identical.
Are AD9122BCPZ and AD9122BCPZRL electrically and functionally interchangeable?
Yes. Both order codes refer to the same silicon and package; the only difference is the shipping format (tray vs. tape-and-reel). They are interchangeable in a design provided the board supports the 72-lead LFCSP footprint and the assembly process accommodates the chosen packaging.
What are the key performance specifications of the AD9122?
The AD9122 is a dual 16-bit DAC with a maximum update rate of 1230 MSPS, an on-chip 32-bit NCO, and a digital interpolation filter. It supports LVDS input data and operates from 1.8 V and 3.3 V supplies. Verified AC performance includes an SFDR of approximately 82 dBc at 70 MHz output with a 500 MSPS DAC update rate, per the Analog Devices datasheet.
What package and pin count do AD9122BCPZ and AD9122BCPZRL use?
Both parts are supplied in a 72-lead LFCSP (lead frame chip scale package), designated CP-72-2 by Analog Devices. The package is 10 mm × 10 mm with an exposed pad for thermal and ground connection.
Which packaging option should be selected for high-volume production?
For automated SMT assembly lines, AD9122BCPZRL (tape-and-reel) is typically preferred because it supports pick-and-place feeders and higher throughput. AD9122BCPZ (tray) is commonly used for prototyping, low-volume runs, or manual handling.
Do AD9122BCPZ and AD9122BCPZRL differ in moisture sensitivity level or RoHS status?
No. Both order codes share the same package and are RoHS-compliant. Moisture sensitivity level (MSL) is a property of the package and is identical for both; refer to the Analog Devices datasheet and packaging information for the verified MSL rating of the CP-72-2 package.
Can AD9122BCPZ and AD9122BCPZRL be mixed on the same PCB assembly?
Yes. Because both are the same device in the same 72-lead LFCSP package, they can be used interchangeably on the same PCB. The choice between them affects only the SMT feeder setup and inventory handling, not the electrical or mechanical design.
What is the maximum DAC update rate of the AD9122?
The AD9122 supports a maximum DAC update rate of 1230 MSPS, as specified in the Analog Devices datasheet. This applies equally to AD9122BCPZ and AD9122BCPZRL since they are the same device.