Part A
AD9754ARUZRL7
ADI公司
- Lifecycle
- Active
- Stock
- 3070 件
- Package
- TSSOP-28
- Series
- 資料獲取-數模轉換器（DAC）
Replacement verdict
Compatible functional replacement candidate
The AD9754ARUZRL7 and AD9752ARRL are both 14-bit high-speed TxDAC digital-to-analog converters from Analog Devices in a 28-lead TSSOP package, sharing the same resolution, supply architecture, and interface family. The AD9754ARUZRL7 offers a higher maximum update rate and a wider full-scale current range, making it a viable functional upgrade candidate for the AD9752ARRL in most designs, provided the higher clock rate and output current span are validated against the target application's timing and load requirements.
Resolution
High match
Package Type
High match
Maximum Update Rate
Validation required
Full-Scale Output Current
Validation required
Parts at a glance
Part B
AD9752ARRL
ADI公司
- Lifecycle
- Active
- Stock
- 3004 件
- Package
- SOIC-28
- Series
- 資料獲取-數模轉換器（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 | AD9752ARRL | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 12 bit | Resolution determines the number of discrete output levels; a 14-bit DAC offers finer quantization and lower quantization noise than a 12-bit DAC, affecting achievable SNR and signal fidelity. |
| Number of DAC Channels | 1 | 1 | Both are single-channel DACs, so channel count is not a differentiator for substitutability in single-path signal chains. |
| Update Rate (Max) | 125 MSPS | 125 MSPS | Maximum update rate sets the highest sample clock the DAC can accept; matching rates means both can serve similar high-speed signal synthesis applications. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Current-output DACs require an external I/V stage; identical output architecture means the same analog front-end design can be reused. |
| Supply Voltage (Analog/Digital) | 5 V | 5 V | Supply voltage compatibility ensures the part can drop into the same power rail design without level shifting or regulator changes. |
| Package / Mounting | 28-TSSOP (Surface Mount) | 28-SSOP (Surface Mount) | Package footprint and pinout affect PCB layout; different package families may require layout changes even if electrically similar. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Industrial temperature range compatibility ensures both parts meet the same environmental requirements for the target application. |
| Interface | Parallel | Parallel | A parallel input interface allows high-speed data transfer; matching interface type means the same digital driver and timing scheme can be used. |
| INL / DNL Linearity | ±2.5 LSB INL (typ) | ±0.5 LSB INL (typ) | Integral and differential nonlinearity affect distortion and monotonicity; differing linearity specs can change achievable SFDR and accuracy in the end system. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9754ARUZRL7 | AD9752ARRL |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Obsolete |
| Number of Bits | 14 | - |
| Number of D/A Converters | 1 | - |
| Settling Time | 35ns (Typ) | - |
| Output Type | Current - Unbuffered | - |
| Differential Output | Yes | - |
| Data Interface | Parallel | - |
| Reference Type | External, Internal | - |
| Voltage - Supply, Analog | 5V | - |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | - |
| INL / DNL(LSB) | ±1.5, ±0.75 | - |
| Architecture | Current Source | - |
| Operating Temperature | -40°C ~ 85°C | - |
Frequently asked questions
What are the key differences between the AD9754ARUZRL7 and the AD9752ARRL?
The AD9754ARUZRL7 is a 14-bit, 125 MSPS TxDAC+ digital-to-analog converter, while the AD9752ARRL is a 12-bit, 125 MSPS TxDAC+ DAC. Both are pin-compatible members of the same Analog Devices TxDAC+ family and share a 28-lead TSSOP package, but the AD9754 offers 14-bit resolution versus 12-bit resolution on the AD9752, and the two differ in specified spurious-free dynamic range and signal-to-noise performance.
Are the AD9754ARUZRL7 and AD9752ARRL pin-compatible?
Yes. Both devices are offered in the same 28-lead TSSOP (RU-28) package and are part of the Analog Devices TxDAC+ pin-compatible family, allowing a common PCB footprint. Designers should still verify supply, reference, and clock pin assignments against the respective datasheets before substitution.
What is the maximum update rate and resolution of each device?
The AD9754ARUZRL7 provides 14-bit resolution at a maximum update rate of 125 MSPS. The AD9752ARRL provides 12-bit resolution at a maximum update rate of 125 MSPS. Both are specified for operation with a single 5 V supply.
What is the difference in dynamic performance between the two converters?
Because the AD9754ARUZRL7 carries 14-bit resolution versus 12-bit on the AD9752ARRL, it delivers higher signal-to-noise ratio and lower quantization noise, which generally translates to better spurious-free dynamic range at a given output frequency. The exact SFDR and SNR figures should be taken from the respective Analog Devices datasheets at the specific output frequency and update rate of interest.
Do both parts use the same digital input interface and supply voltage?
Yes. Both the AD9754ARUZRL7 and AD9752ARRL use a parallel CMOS-compatible digital input interface and operate from a single 5 V analog and digital supply, with a separate digital supply pin for flexible logic interfacing. Both include an internal reference and support external reference operation.
What is the difference between the ARUZRL7 and ARRL ordering suffixes?
The suffix indicates package and packing. On the AD9754ARUZRL7, "ARUZ" denotes the 28-lead TSSOP package with Pb-free/RoHS-compliant construction and "RL7" denotes tape-and-reel packaging in 7-inch reels. On the AD9752ARRL, "AR" denotes the 28-lead TSSOP package and "RL" denotes tape-and-reel packaging. Buyers should confirm RoHS status and reel quantity from the current Analog Devices or distributor datasheet.
Can the AD9752ARRL be replaced by the AD9754ARUZRL7 in an existing design?
Because both are pin-compatible 28-lead TSSOP TxDAC+ devices with the same 125 MSPS update rate and 5 V supply, the AD9754ARUZRL7 can generally serve as a higher-resolution upgrade. However, the designer must confirm that the 14-bit input word width, timing, and the board's digital source are compatible, and must revalidate dynamic performance and layout against the AD9754 datasheet before substitution.
What are the typical applications for these TxDAC+ converters?
Both the AD9754ARUZRL7 and AD9752ARRL are intended for communications and signal-generation applications such as base-station transmit channels, direct digital synthesis, and wideband instrumentation, where a high-speed parallel-input current-output DAC with an on-chip reference is required. The AD9754's 14-bit resolution suits applications needing lower quantization noise, while the AD9752's 12-bit resolution suits cost-sensitive designs.