Part A
AD9715BCPZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3252 PCS
- Package
- VFQFN-40
- Series
- Acquisição de dados - Convertedores digitais para analógicos (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9714BCPZRL7 is a viable functional replacement candidate for the AD9715BCPZ, sharing the same dual 10-bit DAC architecture, 40-lead LFCSP package, and pin-compatible interface, though the AD9715BCPZ offers a higher maximum update rate that must be validated against the target application's sampling requirements.
Resolution and Channel Count
High match
Package and Pinout
High match
Maximum Update Rate
Validation required
Supply Voltage and Interface
High match
Parts at a glance
Part B
AD9714BCPZRL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 460 PCS
- Package
- VFQFN-40
- 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 | AD9715BCPZ | AD9714BCPZRL7 | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 14 bit | Bit depth determines the quantization granularity and achievable dynamic range of the DAC output. |
| Number of DAC Channels | 2 | 2 | Dual channels enable I/Q signal generation for communications and quadrature applications. |
| Maximum Update Rate | 125 MSPS | 125 MSPS | Sample rate sets the maximum synthesizable output frequency and signal bandwidth. |
| Output Type | Current (differential) | Current (differential) | Current-output DACs require an external I/V stage but offer flexible output compliance and fast settling. |
| Supply Voltage | 1.8 V to 3.3 V | 1.8 V to 3.3 V | Supply range determines compatibility with the surrounding digital and analog power domains. |
| Interface | Parallel CMOS | Parallel CMOS | The digital input interface must match the driving FPGA/ASIC and PCB routing constraints. |
| Package | 40-Lead LFCSP | 40-Lead LFCSP | Package footprint and thermal characteristics affect board layout and drop-in substitutability. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range confirms suitability for industrial and extended-environment applications. |
| Packaging / Ordering | Tray | Tape & Reel (RL7) | Packaging format affects assembly line handling and high-volume manufacturing compatibility. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9715BCPZ | AD9714BCPZRL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Active |
| Number of Bits | 10 | 8 |
| Number of D/A Converters | 2 | 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) | ±0.13, ±0.08 | ±0.025, ±0.02 |
| Architecture | Current Source | Current Source |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the AD9715BCPZ and AD9714BCPZRL7?
The AD9715BCPZ and AD9714BCPZRL7 are both dual-channel, 8-bit digital-to-analog converters from Analog Devices in a 40-lead LFCSP package. The primary difference is the resolution: the AD9715 is a 10-bit DAC, while the AD9714 is an 8-bit DAC. Both share the same pinout and package, but the AD9715 offers higher resolution and therefore lower quantization error. The AD9714BCPZRL7 is supplied in tape-and-reel packaging, whereas the AD9715BCPZ is supplied in tray packaging.
Are the AD9715BCPZ and AD9714BCPZRL7 pin-compatible?
Yes. Both devices are offered in the same 40-lead LFCSP (CP-40-1) package with an identical pinout, as specified in the Analog Devices AD9714/AD9715/AD9716/AD9717 datasheet. This allows a common PCB footprint, but the resolution difference must be considered in the system design.
What is the maximum update rate of these DACs?
Both the AD9715 and AD9714 are specified for a maximum update rate of 125 MSPS, according to the Analog Devices datasheet. The actual achievable rate depends on the digital interface timing and the analog output configuration used in the application.
What is the resolution difference and how does it affect performance?
The AD9715BCPZ provides 10-bit resolution, while the AD9714BCPZRL7 provides 8-bit resolution. The 10-bit device has 1024 output levels versus 256 for the 8-bit device, resulting in lower quantization noise and better signal-to-noise ratio (SNR) for the AD9715. The datasheet specifies typical SNR of 68 dBc for the AD9715 and 55 dBc for the AD9714 at a 10 MHz output frequency.
Do both parts support the same digital input interface?
Yes. Both devices use a parallel LVCMOS-compatible input interface with a maximum input data rate of 125 MSPS per channel, as documented in the Analog Devices datasheet. The digital input timing and control signals (such as CLK and SYNC) are identical across the family.
What is the difference in packaging between the two orderable part numbers?
The AD9715BCPZ is supplied in a tray (bulk) packaging format, while the AD9714BCPZRL7 is supplied in tape-and-reel packaging (the "RL7" suffix indicates 7-inch reel). Both use the same 40-lead LFCSP package. The packaging choice affects handling and assembly for volume production but not the device performance.
Can the AD9714BCPZRL7 be used as a drop-in replacement for the AD9715BCPZ?
Because both devices are pin-compatible and share the same package and interface, the AD9714BCPZRL7 can be placed on a board designed for the AD9715BCPZ. However, it is not a functional drop-in replacement: the AD9714 provides only 8-bit resolution versus 10 bits for the AD9715, so system performance (SNR, quantization error) will be reduced. The design must be validated against the lower resolution before substitution.
What are the typical power consumption figures for these DACs?
According to the Analog Devices datasheet, both the AD9715 and AD9714 typically consume about 86 mW per channel at 125 MSPS with a 3.3 V analog supply and 1.8 V digital supply. Power consumption scales with the update rate and can be reduced using the power-down modes provided on both devices.