Part A
AD9146BCPZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 2038 PCS
- Package
- LFCSP-48
- Series
- Acquisition de données - convertisseur numérique - analogique (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9146BCPZ and AD9146BCPZRL are functionally identical dual 16-bit 123 MSPS TxDAC+ digital-to-analog converters in the same 48-lead LFCSP package, differing only in packing format (tray versus tape-and-reel). The AD9146BCPZRL is a valid drop-in replacement for the AD9146BCPZ in production environments, with no electrical, thermal, or footprint differences affecting interchangeability.
Resolution and Sample Rate
High match
Package and Pinout
High match
Supply and Interface
High match
Packing Format
High match
Parts at a glance
Part B
AD9146BCPZRL
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 2396 PCS
- Package
- WFQFN-48
- Series
- Acquisition de données - convertisseur numérique - analogique (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 | AD9146BCPZ | AD9146BCPZRL | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Determines the quantization accuracy of the DAC output; both parts match, so signal fidelity is identical. |
| Number of DAC Channels | 2 | 2 | Dual-channel architecture enables I/Q signal generation; identical channel count ensures functional interchangeability. |
| Maximum Update Rate | 1230 MSPS | 1230 MSPS | Sets the maximum sample rate for high-speed signal synthesis; matching rates mean identical bandwidth capability. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Defines the interface to the analog output stage; identical output type allows the same external circuitry to be used. |
| Data Interface | LVDS - Parallel | LVDS - Parallel | Determines compatibility with the digital source (FPGA/ASIC); matching interface ensures drop-in digital connectivity. |
| Supply Voltage (Analog/Digital) | 1.8V / 3.3V | 1.8V / 3.3V | Affects power supply design and board-level compatibility; identical rails allow the same power architecture. |
| Package / Case | 48-LFCSP (7x7) | 48-LFCSP (7x7) | Footprint and thermal characteristics must match for PCB compatibility; identical package enables direct board replacement. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Defines environmental limits for the application; matching ranges ensure equivalent reliability in the same conditions. |
| Packaging / Delivery Form | Tray | Tape & Reel | Affects manufacturing handling and assembly line feed method; the only functional difference, relevant to production logistics rather than device performance. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9146BCPZ | AD9146BCPZRL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| 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 AD9146BCPZ and AD9146BCPZRL?
Both are the same AD9146 dual 16-bit 123 MSPS TxDAC+ digital-to-analog converter in a 48-lead LFCSP package. The difference is packaging format: AD9146BCPZ is supplied in trays, while AD9146BCPZRL is supplied in tape-and-reel for automated assembly. Electrical and functional specifications are identical.
Are AD9146BCPZ and AD9146BCPZRL electrically and functionally interchangeable?
Yes. Both order codes refer to the same silicon device, the AD9146, with identical resolution (16-bit), sample rate (up to 123 MSPS), interface, and package. They differ only in shipping media (tray vs. tape-and-reel), so they are interchangeable in the target design.
What package and pin configuration do AD9146BCPZ and AD9146BCPZRL use?
Both parts use a 48-lead LFCSP (lead frame chip scale package) with an exposed pad, designated CP-48-13 in Analog Devices documentation. Pin assignments and the PCB land pattern are identical for both order codes.
Which order code should be selected for high-volume automated assembly?
AD9146BCPZRL is the tape-and-reel option, which is intended for automated pick-and-place production lines. AD9146BCPZ in trays is typically used for prototyping, low-volume runs, or manual assembly.
Do AD9146BCPZ and AD9146BCPZRL share the same operating temperature range and supply requirements?
Yes. Both order codes specify the same operating temperature range of −40°C to +85°C and the same supply rails (1.8 V and 3.3 V) as defined in the AD9146 datasheet, since they are the same device.
Is the moisture sensitivity level (MSL) the same for both order codes?
Both AD9146BCPZ and AD9146BCPZRL are rated at MSL 3 per the Analog Devices package classification for the 48-lead LFCSP, so handling and floor-life requirements are the same for both shipping formats.
Can AD9146BCPZ and AD9146BCPZRL be mixed on the same PCB assembly?
Yes. Because both order codes are the same die in the same 48-lead LFCSP package with identical pinout, they can be used interchangeably on the same PCB assembly without layout changes.