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 AD9752ARZRL are both 14-bit high-speed TxDAC digital-to-analog converters from Analog Devices with matching resolution, update rate class, and 28-lead package footprint, making the AD9752ARZRL a viable functional replacement candidate for the AD9754ARUZRL7 in most designs. However, the two parts differ in on-chip reference architecture and supply current, so reference configuration and power budget should be validated against the target application before substitution.
Resolution
High match
Package Type
High match
Reference Architecture
Validation required
Supply Current
Validation required
Parts at a glance
Part B
AD9752ARZRL
ADI公司
- Lifecycle
- Active
- Stock
- 7044 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 | AD9752ARZRL | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 12 bit | Resolution determines the number of discrete output levels; a 14-bit DAC provides 4x finer quantization than a 12-bit DAC, directly affecting signal fidelity and SFDR in reconstruction applications. |
| 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 bandwidth capability is equivalent. |
| Number of DAC Channels | 1 | 1 | Single-channel architecture means both devices suit single-tone or I/Q-pair (dual-chip) transmit paths; channel count must match the system's signal chain topology. |
| 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 (Analog/Digital) | 5 V / 3.3 V | 5 V / 3.3 V | Supply rails must match the board's power tree; identical 5 V analog and 3.3 V digital requirements allow drop-in power compatibility. |
| Package / Mounting | 28-TSSOP (Surface Mount) | 28-SOIC (Surface Mount) | 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 digital host connection and pin count; matching interface type preserves the FPGA/ASIC driver design. |
| INL / DNL (Typical) | ±1.5 LSB INL / ±0.5 LSB DNL | ±0.5 LSB INL / ±0.25 LSB DNL | Integral and differential nonlinearity affect DC accuracy and monotonicity; the 12-bit part specifies tighter LSB-referenced linearity, though absolute error scales with resolution. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9754ARUZRL7 | AD9752ARZRL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Active |
| Number of Bits | 14 | 12 |
| 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 | ±0.5, ±0.25 |
| 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 AD9752ARZRL?
The AD9754ARUZRL7 is a 14-bit, 125 MSPS TxDAC+ digital-to-analog converter, while the AD9752ARZRL is a 12-bit, 125 MSPS TxDAC+ DAC. Both offer the same update rate and are members of the same pin-compatible TxDAC+ family, but the AD9754 provides 14-bit resolution versus 12-bit resolution on the AD9752, yielding higher SNR and lower quantization noise for the AD9754.
Are the AD9754ARUZRL7 and AD9752ARZRL pin-compatible?
Yes. Both devices are offered in the same 28-lead TSSOP package and belong to the Analog Devices TxDAC+ family, which is designed for pin compatibility across resolution grades. This allows a common PCB footprint, though the resolution difference must be accounted for in system performance budgeting.
What is the maximum update rate of these DACs?
Both the AD9754ARUZRL7 and the AD9752ARZRL are specified for a maximum update rate of 125 MSPS, making them suitable for high-speed communications, instrumentation, and waveform generation applications requiring update rates up to 125 MHz.
What is the resolution and INL performance of each device?
The AD9754ARUZRL7 provides 14-bit resolution, while the AD9752ARZRL provides 12-bit resolution. Both are current-output DACs with differential current outputs. Designers should consult the respective Analog Devices datasheets for the exact INL, DNL, and SFDR specifications at the intended update rate and output configuration.
What output configuration and interface do these DACs use?
Both devices are current-output DACs with differential current outputs (IOUTA and IOUTB) intended for direct connection to a transformer or differential amplifier. They feature a parallel CMOS-compatible input interface for loading digital data at the 125 MSPS update rate.
What supply voltage and power consumption do these parts require?
Both the AD9754ARUZRL7 and AD9752ARZRL operate from a single 5 V analog supply with a 3 V to 5 V digital supply for the input interface, consistent with the TxDAC+ family architecture. For exact power dissipation figures at specific operating conditions, refer to the Analog Devices datasheets for each part number.
Can the AD9752ARZRL be used as a drop-in replacement for the AD9754ARUZRL7?
Because both are pin-compatible 28-lead TSSOP devices in the same TxDAC+ family, the AD9752ARZRL can physically populate the same footprint. However, it provides only 12-bit resolution versus 14 bits on the AD9754ARUZRL7, so it is not a performance-equivalent replacement. The system's SNR and resolution requirements must be revalidated before substituting.
What are the package and ordering designators for these parts?
The AD9754ARUZRL7 is supplied in a 28-lead TSSOP package in tape-and-reel format (RL7 suffix). The AD9752ARZRL is supplied in a 28-lead SOIC package in tape-and-reel format (RL suffix). Note that the package types differ between these two specific orderable part numbers, so PCB land patterns are not interchangeable despite family-level pin compatibility.