Part A
AD9754ARUZRL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3070 Stückzahl
- Package
- TSSOP-28
- Series
- Data Acquisition von Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9754ARUZRL7 and AD9750ARUZRL7 are functionally related 14-bit and 10-bit TxDAC digital-to-analog converters from the same Analog Devices TxDAC family, sharing an identical 28-lead TSSOP package and pinout, supply architecture, and interface style. The primary differentiator is resolution and dynamic performance, so the AD9754ARUZRL7 can serve as a higher-resolution upgrade path for the AD9750ARUZRL7 in many designs, while substitution in the reverse direction requires validation of effective resolution and AC linearity against system requirements.
Resolution
High match
Package and Pinout
High match
Supply and Interface
High match
Dynamic Performance
Validation required
Parts at a glance
Part B
AD9750ARUZRL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6491 Stückzahl
- Package
- TSSOP-28
- 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 | AD9754ARUZRL7 | AD9750ARUZRL7 | 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 conversion speed, so timing-critical designs can interchange them. |
| Number of DAC Channels | 1 | 1 | Single-channel architecture means both devices suit single-ended transmit paths; channel count must match the system's I/Q or single-stream requirement. |
| 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 can be reused. |
| Supply Voltage (Analog/Digital) | 5 V / 3.3 V | 5 V / 3.3 V | Compatible supply rails allow the same power tree and decoupling network to be shared, simplifying board-level substitution. |
| Package / Case | 28-TSSOP | 28-TSSOP | Identical package and pinout enable drop-in replacement without PCB layout changes. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Industrial temperature range confirms both parts are qualified for the same environmental conditions in the target application. |
| Interface | Parallel | Parallel | Parallel input interface determines the digital host connection; matching interface type allows the same FPGA/ASIC driver logic to be used. |
| SFDR (at rated update rate) | Higher (14-bit grade) | Lower (10-bit grade) | Spurious-free dynamic range affects spectral purity in communications and instrumentation; the higher-resolution part typically delivers better SFDR, which may be required for demanding RF synthesis. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9754ARUZRL7 | AD9750ARUZRL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| 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 AD9750ARUZRL7?
The AD9754ARUZRL7 is a 14-bit, 125 MSPS TxDAC digital-to-analog converter, while the AD9750ARUZRL7 is a 10-bit, 125 MSPS TxDAC. Both are members of the Analog Devices TxDAC family, offered in a 28-lead TSSOP package (RUZ suffix) and supplied in tape-and-reel format (RL7 suffix). The primary distinction is resolution: 14-bit versus 10-bit.
Do the AD9754ARUZRL7 and AD9750ARUZRL7 share the same package and pinout?
Yes. Both devices are specified in the same 28-lead TSSOP (RUZ) package and are pin-compatible members of the TxDAC family, which allows board-level interchangeability when the resolution difference is acceptable for the application.
What is the maximum update rate of these two DACs?
Both the AD9754ARUZRL7 and the AD9750ARUZRL7 are specified for a maximum update rate of 125 MSPS, making them suitable for high-speed signal synthesis and communications applications.
What is the resolution difference and how does it affect performance?
The AD9754ARUZRL7 provides 14-bit resolution, whereas the AD9750ARUZRL7 provides 10-bit resolution. The higher resolution of the AD9754 yields finer quantization steps and lower quantization noise, which generally translates to better signal-to-noise ratio and spectral performance in demanding applications.
Are both parts supplied in tape-and-reel packaging?
Yes. The RL7 suffix on both the AD9754ARUZRL7 and AD9750ARUZRL7 indicates tape-and-reel packaging, which is intended for automated surface-mount assembly production lines.
Can the AD9750ARUZRL7 be used as a drop-in replacement for the AD9754ARUZRL7?
Because both are pin-compatible 28-lead TSSOP TxDAC devices, the AD9750ARUZRL7 can be placed on a board designed for the AD9754ARUZRL7, but the design must be revalidated: the 10-bit resolution of the AD9750 reduces dynamic performance compared with the 14-bit AD9754, so system SNR and spectral requirements must be checked against the application specification.
What supply voltage do these DACs require?
Both the AD9754ARUZRL7 and AD9750ARUZRL7 operate from a single 5 V analog supply with a separate digital supply, consistent with the Analog Devices TxDAC family specifications. Designers should confirm exact supply and reference requirements against the respective manufacturer datasheets.