Part A
AD9754ARUZRL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3070 PCS
- Package
- TSSOP-28
- Series
- Acquisição de dados - Convertedores digitais para analógicos (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9754ARUZRL7 and AD9750ARZRL are both 14-bit high-speed TxDAC digital-to-analog converters from Analog Devices with matching resolution, update rate class, and supply architecture, making the AD9754ARUZRL7 a viable functional replacement candidate for the AD9750ARZRL. Designers should validate the TSSOP-28 versus SOIC-28 footprint change and confirm the on-chip reference and interface timing against the target board before final qualification.
Resolution
High match
Update Rate
High match
Package Type
Validation required
Supply Voltage
High match
Parts at a glance
Part B
AD9750ARZRL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3739 PCS
- Package
- SOIC-28
- 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 | AD9754ARUZRL7 | AD9750ARZRL | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 10 bit | Resolution determines the number of discrete output levels; a 14-bit DAC provides 16x finer quantization than a 10-bit DAC, directly affecting signal fidelity and SFDR performance. |
| Update Rate (Max) | 125 MSPS | 125 MSPS | Maximum sample rate defines the highest signal bandwidth the DAC can synthesize; both parts share the same 125 MSPS ceiling, so speed is not a differentiator. |
| Number of DAC Channels | 1 | 1 | Single-channel architecture means both parts suit single-path transmit chains; channel count must match the system's I/Q or single-stream requirements. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Current-output DACs require an external op-amp or transformer to convert to voltage; matching output topology ensures the analog front-end design remains compatible. |
| Supply Voltage | 5 V (Analog), 3.3 V (Digital) | 5 V (Analog), 3.3 V (Digital) | Supply rails must match the board's power tree; identical analog/digital rails allow drop-in replacement without power redesign. |
| Package / Case | 28-TSSOP | 28-SOIC | Different package footprints (TSSOP vs SOIC) require different PCB land patterns, so a board respin or adapter is needed for substitution. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Industrial temperature range compatibility ensures both parts meet the same environmental qualification for the target application. |
| Interface | Parallel | Parallel | Parallel input interface determines the FPGA/ASIC pin count and timing; matching interface type keeps the digital backend unchanged. |
| INL (Integral Nonlinearity) | ±2.5 LSB (typ) | ±0.5 LSB (typ) | INL measures static accuracy; the 10-bit part's tighter LSB-referenced INL reflects its lower resolution, but absolute linearity error differs and affects DC precision. |
| SFDR (at fout = 5 MHz) | ~78 dBc | ~75 dBc | Spurious-free dynamic range governs spectral purity in communication transmitters; the higher-resolution AD9754 offers better SFDR, improving signal quality. |
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 | AD9754ARUZRL7 | AD9750ARZRL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Active |
| Number of Bits | 14 | 10 |
| Number of D/A Converters | 1 | 1 |
| Settling Time | 35ns (Typ) | 35ns (Typ) |
| Output Type | Current - Unbuffered | Current - Unbuffered |
| Differential Output | Yes | Yes |
| Data Interface | Parallel | Parallel |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 5V | 5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| INL / DNL(LSB) | ±1.5, ±0.75 | ±0.1, ±0.1 |
| 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 AD9754ARUZRL7 and the AD9750ARZRL?
The AD9754ARUZRL7 is a 14-bit, 125 MSPS TxDAC+ digital-to-analog converter in a 28-lead TSSOP package, while the AD9750ARZRL is a 10-bit, 125 MSPS TxDAC+ DAC in a 28-lead SOIC package. The primary differences are resolution (14-bit vs 10-bit) and package type (TSSOP vs SOIC).
Do the AD9754ARUZRL7 and AD9750ARZRL have the same update rate?
Yes. Both devices are specified for a maximum update rate of 125 MSPS, making them suitable for comparable high-speed signal synthesis applications despite their different resolutions.
Are the AD9754ARUZRL7 and AD9750ARZRL pin-compatible?
No. The AD9754ARUZRL7 uses a 28-lead TSSOP package, whereas the AD9750ARZRL uses a 28-lead SOIC package. The different package footprints and land patterns mean they are not drop-in replacements for one another on the same PCB.
What is the resolution difference and how does it affect performance?
The AD9754ARUZRL7 provides 14-bit resolution, offering finer quantization and lower quantization noise than the 10-bit AD9750ARZRL. The higher resolution of the AD9754ARUZRL7 supports improved dynamic range and spectral performance in demanding applications.
Do both parts operate from the same supply voltage?
Yes. Both the AD9754ARUZRL7 and AD9750ARZRL are specified to operate from a single 5 V supply, with a nominal full-scale output current of 20 mA.
Can the AD9750ARZRL be used as a substitute for the AD9754ARUZRL7?
Not directly. Although both are 125 MSPS TxDAC+ devices, the AD9750ARZRL offers only 10-bit resolution versus 14-bit on the AD9754ARUZRL7, and the package differs (SOIC vs TSSOP). Substitution requires validating resolution, package footprint, and system performance requirements against the design.
What input interface do these DACs use?
Both the AD9754ARUZRL7 and AD9750ARZRL feature a CMOS-compatible digital input interface that accepts binary or twos complement data formats, supporting straightforward interfacing with high-speed digital logic and DSPs.