Part A
AD9717BCPZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3375 PCS
- Package
- VFQFN-40
- Series
- Data Acquisition - Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9715BCPZRL7 is a viable functional substitute for the AD9717BCPZ in many designs, as both are dual 14-bit current-output DACs sharing the same LFCSP-40 package and 1.8 V to 3.3 V supply range. The primary differentiator is the maximum update rate, so the AD9715BCPZRL7 should only be selected where the system clock stays within its lower speed limit; otherwise the AD9717BCPZ remains the required part.
Resolution
High match
Output Type
High match
Package Type
High match
Maximum Update Rate
Validation required
Parts at a glance
Part B
AD9715BCPZRL7
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6539 PCS
- Package
- VFQFN-40
- Series
- Data Acquisition - 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 | AD9717BCPZ | AD9715BCPZRL7 | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 10 bit | Resolution determines the number of discrete output levels; a 14-bit DAC offers 16x finer amplitude granularity than a 10-bit DAC, directly affecting signal fidelity and SFDR performance. |
| Number of DAC Channels | 2 | 2 | Both are dual-channel DACs, so channel count is compatible for I/Q or dual-path applications. |
| Maximum Update Rate | 125 MSPS | 125 MSPS | Sample rate defines the maximum synthesizable signal bandwidth; identical rates mean both can support the same output frequency range. |
| Output Type | Current (differential) | Current (differential) | Current-output DACs require an external I/V stage; matching output topology 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 | Compatible supply rails allow the same power design and level-shifting circuitry to be used for either part. |
| Package / Pin Count | 40-lead LFCSP | 40-lead LFCSP | Identical package and pinout enable drop-in PCB compatibility without layout changes. |
| Interface | Parallel CMOS | Parallel CMOS | Matching digital interface ensures the same FPGA/controller timing and bus width can drive either device. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical temperature ratings mean both parts suit the same industrial-grade environments. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9717BCPZ | AD9715BCPZRL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Active |
| Number of Bits | 14 | 10 |
| 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) | ±1.8, ±1.7 | ±0.13, ±0.08 |
| 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 AD9717BCPZ and AD9715BCPZRL7?
The AD9717BCPZ is a dual 14-bit, 125 MSPS digital-to-analog converter (DAC) in a 40-lead LFCSP package, while the AD9715BCPZRL7 is a dual 10-bit, 125 MSPS DAC in the same 40-lead LFCSP package supplied in tape-and-reel format. The primary differences are resolution (14-bit vs 10-bit) and packaging format (tray vs tape-and-reel).
Do the AD9717BCPZ and AD9715BCPZRL7 share the same pinout and package?
Yes. Both devices are offered in a 40-lead LFCSP (CP-40-1) package with the same pin configuration, as specified in the Analog Devices AD9714/AD9715/AD9716/AD9717 datasheet. This allows board-level compatibility when resolution requirements permit.
What is the maximum update rate of these DACs?
Both the AD9717BCPZ and AD9715BCPZRL7 are specified for a maximum DAC update rate of 125 MSPS, per the Analog Devices datasheet for the AD9714/AD9715/AD9716/AD9717 family.
What is the resolution difference and how does it affect performance?
The AD9717BCPZ provides 14-bit resolution, while the AD9715BCPZRL7 provides 10-bit resolution. Higher resolution in the AD9717 yields lower quantization noise and improved spurious-free dynamic range (SFDR) and signal-to-noise ratio (SNR) compared to the 10-bit AD9715, based on the datasheet specifications for each device.
What supply voltage and interface do these DACs require?
Both devices operate from a 1.8 V to 3.3 V analog and digital supply and feature a CMOS-compatible input interface with a flexible LVDS-compatible option, as documented in the Analog Devices AD9714/AD9715/AD9716/AD9717 datasheet.
What does the "RL7" suffix indicate on the AD9715BCPZRL7?
The "RL7" suffix denotes tape-and-reel packaging in 7-inch reels, as defined by Analog Devices ordering conventions. The AD9717BCPZ is supplied in a tray. Both use the same 40-lead LFCSP package.
Can the AD9715BCPZRL7 be used as a drop-in replacement for the AD9717BCPZ?
Because both share the same package and pinout, the AD9715BCPZRL7 can be placed on a board designed for the AD9717BCPZ, but it provides only 10-bit resolution instead of 14-bit. System performance must be revalidated against the application's SNR and SFDR requirements before substitution.
What are the typical applications for these DACs?
Per the Analog Devices datasheet, the AD9717BCPZ and AD9715BCPZRL7 are intended for applications including wireless infrastructure, broadband communications, instrumentation, and baseband signal processing where dual low-power DACs with update rates up to 125 MSPS are required.