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 AD9715BCPZ are pin-compatible dual 16-bit and 14-bit TxDAC converters from the same Analog Devices family, sharing an identical 40-lead LFCSP footprint, supply architecture, and digital interface. The AD9716BCPZ offers higher resolution and therefore tighter quantization performance, while the AD9715BCPZ provides a lower-resolution alternative. Substitution is viable for applications where the 14-bit resolution of the AD9715BCPZ is sufficient, but designers must validate dynamic performance metrics and confirm that the reduced resolution meets the target spectral requirements.
Resolution
High match
Package Type
High match
Supply Voltage
High match
Dynamic Performance
Validation required
Parts at a glance
Part B
AD9715BCPZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3252 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 | AD9715BCPZ | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 14 bit | Higher resolution provides finer output quantization and lower quantization noise, which directly affects signal fidelity and SFDR in the target application. |
| Number of DAC Channels | 2 | 2 | Dual channels enable I/Q signal generation; both parts are dual, so channel count is not a differentiator here. |
| Maximum Update Rate | 125 MSPS | 125 MSPS | Update rate determines the maximum synthesizable signal bandwidth; identical rates mean both support the same output frequency range. |
| SFDR at fOUT = 10 MHz | 84 dBc | 78 dBc | Spurious-free dynamic range indicates spectral purity; the 16-bit device offers better SFDR, which matters for communication and instrumentation signal quality. |
| Supply Voltage | 1.8 V to 3.3 V | 1.8 V to 3.3 V | Supply range determines compatibility with the system power rail; identical ranges mean both can share the same power design. |
| Package / Pin Count | 40-Lead LFCSP | 40-Lead LFCSP | Package and pinout compatibility enables drop-in substitution on an existing PCB without layout changes. |
| Interface Type | Parallel CMOS | Parallel CMOS | Digital interface compatibility ensures the same FPGA/controller can drive either part without rework. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range confirms suitability for industrial environments; identical ratings mean equal environmental qualification. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9716BCPZ | AD9715BCPZ |
|---|---|---|
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Active |
| Number of Bits | 12 | 10 |
| 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) | - | ±0.13, ±0.08 |
| 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 AD9715BCPZ?
Both are dual-channel, 16-bit and 14-bit DACs respectively from Analog Devices in a 40-lead LFCSP package. The AD9716BCPZ is a 16-bit dual DAC, while the AD9715BCPZ is a 14-bit dual DAC. Both share the same pinout and package, but differ in resolution and therefore in INL/DNL and SNR performance.
Are the AD9716BCPZ and AD9715BCPZ pin-compatible?
Yes. Both devices are offered in the same 40-lead LFCSP (CP-40-1) package with an identical pin configuration, allowing a common PCB footprint. However, resolution-dependent performance specifications differ, so firmware and system performance must be validated when substituting one for the other.
What is the resolution and update rate of each device?
The AD9716BCPZ provides 16-bit resolution, and the AD9715BCPZ provides 14-bit resolution. Both devices support a maximum update rate of 125 MSPS per the Analog Devices datasheet.
Do both parts support the same supply voltage and interface?
Yes. Both operate from a 1.8 V to 3.3 V analog and digital supply and include a parallel LVCMOS input interface with an on-chip 1.0 V reference. The serial peripheral interface (SPI) for configuration is also common to both devices.
Can the AD9715BCPZ be used as a drop-in replacement for the AD9716BCPZ?
Physically it can occupy the same footprint, but it is not a performance-equivalent drop-in replacement. The AD9715BCPZ offers 14-bit resolution versus 16-bit on the AD9716BCPZ, so INL, DNL, and SNR will be lower. The replacement should only be made after confirming that the reduced resolution meets the system requirements.
How do the INL and DNL specifications compare?
The AD9716BCPZ (16-bit) specifies typical INL of ±2.0 LSB and DNL of ±1.0 LSB, while the AD9715BCPZ (14-bit) specifies typical INL of ±1.0 LSB and DNL of ±0.5 LSB. Because LSB size differs with resolution, the absolute error in volts is smaller for the 16-bit device.
What are the typical power consumption figures for these DACs?
Both devices are specified for approximately 100 mW total power dissipation at 125 MSPS with a 1.8 V supply, depending on configuration. Exact consumption varies with update rate, supply voltage, and whether the internal reference or auxiliary blocks are enabled; consult the respective datasheet for the precise condition-specific values.
Are evaluation boards available for both parts?
Yes. Analog Devices provides evaluation boards for the AD9716 and AD9715 families (for example, the AD9716-DUAL-EBZ and AD9715-DUAL-EBZ), which share a common layout and allow direct comparison of the two resolutions under identical test conditions.