Part A
AD9716BCPZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2681 Stückzahl
- Series
- Data Acquisition von Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9716BCPZ and AD9714BCPZRL7 are dual 10-bit and 14-bit TxDAC digital-to-analog converters from the same Analog Devices AD971x family, sharing an identical 40-lead LFCSP package, pinout, supply architecture, and serial/parallel interface. The primary distinction is resolution and dynamic performance, so the AD9716BCPZ can serve as a functional substitute for the AD9714BCPZRL7 in applications where 10-bit resolution and the associated SFDR/SNR headroom are acceptable, while the reverse substitution requires validation of spectral performance budgets.
Resolution
High match
Package and Pinout
High match
Supply and Interface
High match
Dynamic Performance
Validation required
Parts at a glance
Part B
AD9714BCPZRL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 460 Stückzahl
- Package
- VFQFN-40
- 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 | AD9716BCPZ | AD9714BCPZRL7 | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 14 bit | Resolution determines the number of discrete output levels; a 16-bit DAC offers finer amplitude control and lower quantization noise than a 14-bit device, affecting signal fidelity. |
| Number of DAC Channels | 2 | 2 | Both are dual-channel DACs, so channel count is identical and does not affect substitutability. |
| Maximum Update Rate | 125 MSPS | 125 MSPS | The sample/update rate sets the maximum signal bandwidth the DAC can synthesize; identical rates mean comparable bandwidth capability. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Current-output DACs require an external I/V stage; matching output type ensures the same analog front-end design can be reused. |
| Supply Voltage | 1.8 V to 3.3 V | 1.8 V to 3.3 V | Supply voltage compatibility determines whether the part can drop into the same power rail design without level shifting or regulator changes. |
| Package / Case | 40-LFCSP (6x6) | 40-LFCSP (6x6) | Identical package and footprint allow direct PCB replacement without layout changes. |
| Interface | Parallel | Parallel | The digital input interface must match the driving logic; a parallel interface means the same FPGA/controller timing can be reused. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Matching temperature grades ensure both parts meet the same environmental requirements for the target application. |
| INL / DNL Linearity | ±1 LSB INL (typ) | ±0.5 LSB INL (typ) | Linearity error affects distortion and accuracy; the 14-bit part specifies tighter LSB linearity, but in absolute terms the 16-bit device provides finer resolution. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9716BCPZ | AD9714BCPZRL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Active |
| Number of Bits | 12 | 8 |
| Number of D/A Converters | - | 2 |
| Output Type | Current - Unbuffered | Current - Unbuffered |
| Differential Output | Yes | Yes |
| Data Interface | Parallel | Parallel |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 1.7V ~ 3.5V | 1.7V ~ 3.5V |
| Voltage - Supply, Digital | 1.7V ~ 1.9V | 1.7V ~ 1.9V |
| INL / DNL(LSB) | - | ±0.025, ±0.02 |
| Architecture | Current Source | Current Source |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Base Product Number | AD9716 | - |
| Number of D / A Converters | 2 | - |
| INL / DNL (LSB) | ±0.4, ±0.4 | - |
| Mounting Type | Surface Mount | - |
| Packaging | Tray | - |
Frequently asked questions
What are the key differences between the AD9716BCPZ and AD9714BCPZRL7?
The AD9716BCPZ is a dual 16-bit, 125 MSPS digital-to-analog converter, while the AD9714BCPZRL7 is a dual 14-bit, 125 MSPS DAC. Both are members of the Analog Devices TxDAC family in a 40-lead LFCSP package and share the same pinout and 125 MSPS maximum update rate, but they differ in resolution (16-bit vs 14-bit) and therefore in dynamic performance specifications such as SNR and SFDR.
Are the AD9716BCPZ and AD9714BCPZRL7 pin-compatible?
Yes. Both devices are offered in the same 40-lead LFCSP (CP-40) package with an identical pin configuration, allowing a common PCB footprint. Designers should still verify all electrical specifications against the respective datasheets before substituting one for the other.
What is the maximum update rate of these DACs?
Both the AD9716BCPZ and AD9714BCPZRL7 support a maximum DAC update rate of 125 MSPS, as specified in the Analog Devices datasheets for the AD9714/AD9715/AD9716 family.
What is the difference in resolution and how does it affect performance?
The AD9716BCPZ provides 16-bit resolution, whereas the AD9714BCPZRL7 provides 14-bit resolution. The higher resolution of the AD9716BCPZ yields lower quantization noise and typically better SNR and SFDR performance, which is advantageous in demanding communications and instrumentation applications.
Do both parts support the same digital input interface?
Yes. Both devices use a parallel LVCMOS-compatible input interface with the same pin assignments and timing characteristics, since they belong to the same AD9714/AD9715/AD9716 family and share the 40-lead LFCSP pinout.
What is the difference between the BCPZ and BCPZRL7 ordering suffixes?
The BCPZ suffix denotes the 40-lead LFCSP package in a tray or standard tube format, while the RL7 suffix indicates tape-and-reel packaging (7-inch reel) for automated assembly. The silicon die and electrical specifications are identical for a given resolution grade; only the packaging and shipment format differ.
Can the AD9714BCPZRL7 be used as a drop-in replacement for the AD9716BCPZ?
Because both share the same package, pinout, supply requirements, and 125 MSPS update rate, the AD9714BCPZRL7 can physically replace the AD9716BCPZ on an existing board. However, the reduction from 16-bit to 14-bit resolution will degrade SNR and SFDR, so the system's dynamic performance budget must be revalidated before substitution.