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 AD9754ARURL7 are functionally equivalent 14-bit high-speed DACs from the same AD9754 family, sharing identical core specifications, resolution, and interface architecture. The primary distinction lies in packaging and environmental compliance, with the AD9754ARUZRL7 offering RoHS-compliant TSSOP packaging while the AD9754ARURL7 is supplied in standard TSSOP. Both devices are suitable for direct substitution in most applications, provided the designer verifies package footprint compatibility and confirms the RoHS requirement for the target assembly.
Resolution and DAC Architecture
High match
Package Type and Footprint
High match
RoHS Compliance
Validation required
Operating Temperature Range
High match
Parts at a glance
Part B
AD9754ARURL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2753 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 | AD9754ARURL7 | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 14 bit | Determines the quantization granularity of the DAC output; identical resolution means equivalent signal reconstruction fidelity. |
| Number of DAC Channels | 1 | 1 | Defines how many independent analog outputs are available; both are single-channel, so channel count is functionally interchangeable. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Specifies the DAC output architecture; matching current-output type ensures the same external output stage can be used. |
| Supply Voltage | 5 V (analog and digital) | 5 V (analog and digital) | Confirms power rail compatibility; identical supply requirements allow drop-in use in the same board design. |
| Package / Case | 28-TSSOP | 28-TSSOP | Footprint and pinout must match for physical substitutability; identical package ensures PCB compatibility. |
| Mounting Type | Surface Mount | Surface Mount | Assembly method must match the board process; both being surface-mount confirms equivalent placement. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Ensures the part meets the environmental requirements of the application; identical ranges mean equivalent thermal tolerance. |
| Data Interface | Parallel | Parallel | Determines how the host drives the DAC; matching parallel interface means the same digital control scheme applies. |
| Packaging / Reel | Tape & Reel (RL7) | Tape & Reel (RL7) | Affects automated assembly and inventory handling; both supplied on tape and reel are equivalent for production pick-and-place. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9754ARUZRL7 | AD9754ARURL7 |
|---|---|---|
| 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 AD9754ARURL7?
Both parts are functionally identical 14-bit, 125 MSPS TxDAC+ digital-to-analog converters from Analog Devices in a 28-lead TSSOP package. The primary difference is the ordering format: the AD9754ARUZRL7 is supplied in tape-and-reel packaging with a Pb-free/RoHS-compliant (Z) designation, while the AD9754ARURL7 is the tape-and-reel variant without the Z suffix, reflecting a different lead-finish/ordering code. Designers should confirm the exact RoHS/lead-finish status against the manufacturer datasheet and order guide before release.
Are the AD9754ARUZRL7 and AD9754ARURL7 electrically and functionally interchangeable?
Yes. Both devices share the same AD9754 silicon die, 14-bit resolution, 125 MSPS update rate, and 28-lead TSSOP pinout. The difference is limited to packaging/ordering designation (Z suffix for Pb-free/RoHS), so they are drop-in compatible on the PCB provided the lead-finish requirement of the assembly is satisfied.
What is the resolution and maximum update rate of these DACs?
The AD9754 is a 14-bit DAC with a maximum update rate of 125 MSPS, as specified in the Analog Devices AD9754 datasheet. Both the AD9754ARUZRL7 and AD9754ARURL7 carry the same 14-bit, 125 MSPS ratings.
What package do the AD9754ARUZRL7 and AD9754ARURL7 use?
Both parts are offered in a 28-lead TSSOP (Thin Shrink Small Outline Package), designated by the "RU" code in the part number. The "RL7" suffix indicates tape-and-reel packaging with a 7-inch reel.
What is the difference between the "Z" suffix and no "Z" suffix in these part numbers?
In Analog Devices ordering nomenclature, the "Z" suffix denotes a Pb-free, RoHS-compliant lead finish. The AD9754ARUZRL7 includes this Z designation, while the AD9754ARURL7 does not. Customers with RoHS compliance requirements should select the Z-suffixed variant and verify the current qualification status on the official datasheet.
What supply voltage and output configuration does the AD9754 support?
The AD9754 operates from a single 5 V supply (with a 3.3 V-compatible digital interface) and provides a differential current output, typically 2 mA to 20 mA full-scale, suitable for direct interfacing to transformers or op-amp circuits. These parameters apply equally to the AD9754ARUZRL7 and AD9754ARURL7.
Can the AD9754ARUZRL7 be used as a direct replacement for the AD9754ARURL7 in an existing design?
Yes, from an electrical and footprint standpoint the two are interchangeable because they share the same die, pinout, and 28-lead TSSOP package. The only consideration is the lead-finish/RoHS designation (Z suffix), which must match the assembly's compliance requirements. No layout change is required.