Part A
AD9744ARUZ
ADI公司
- Lifecycle
- Active
- Stock
- 6063 件
- Package
- TSSOP-28
- Series
- 資料獲取-數模轉換器（DAC）
Replacement verdict
Compatible functional replacement candidate
The AD9744ARUZRL7 and AD9744ARUZ are functionally identical 14-bit current-output DACs from the same manufacturer, differing only in packaging format (tape-and-reel versus tube). Both share the same die, pinout, and electrical specifications, making the AD9744ARUZRL7 a direct functional replacement for the AD9744ARUZ when reel packaging is acceptable for automated assembly.
Resolution and DAC Architecture
High match
Package and Pinout
High match
Supply Voltage and Power
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD9744ARUZRL7
ADI公司
- Lifecycle
- Active
- Stock
- 3270 件
- Package
- TSSOP-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 | AD9744ARUZRL7 | AD9744ARUZ | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 14 bit | Determines the quantization precision of the DAC output; identical resolution means equivalent signal fidelity. |
| Number of D/A Converters | 1 | 1 | Confirms both are single-channel DACs, so channel count is not a differentiator for substitution. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Both provide unbuffered current outputs, requiring the same external output stage for equivalent behavior. |
| Data Interface | Parallel | Parallel | Interface type must match for the host to drive the device without redesign. |
| Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | Identical supply range ensures the same power rail can be used interchangeably. |
| Package / Case | 28-TSSOP | 28-TSSOP | Same package footprint allows drop-in board replacement without layout changes. |
| Mounting Type | Surface Mount | Surface Mount | Both are surface-mount devices, compatible with the same assembly process. |
| Operating Temperature | -40°C to 85°C | -40°C to 85°C | Matching temperature ratings ensure equivalent environmental robustness. |
| Packaging | Tape & Reel (RL7) | Tube | Packaging differs (reel vs tube), affecting handling and automated assembly but not electrical function. |
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 | AD9744ARUZ | AD9744ARUZRL7 |
|---|---|---|
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Active |
| Number of Bits | 14 | 14 |
| Number of D/A Converters | 1 | 1 |
| Settling Time | 11ns (Typ) | 11ns (Typ) |
| Output Type | Current - Unbuffered | Current - Unbuffered |
| Differential Output | Yes | Yes |
| Data Interface | Parallel | Parallel |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 2.7V ~ 3.6V | 2.7V ~ 3.6V |
| Voltage - Supply, Digital | 2.7V ~ 3.6V | 2.7V ~ 3.6V |
| INL / DNL(LSB) | ±0.8, ±0.5 | ±0.8, ±0.5 |
| Architecture | Current Source | Current Source |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What is the difference between AD9744ARUZRL7 and AD9744ARUZ?
Both are the same AD9744 14-bit, 210 MSPS TxDAC digital-to-analog converter in a 28-lead TSSOP package. The AD9744ARUZ is supplied in standard tray or tube packaging, while the AD9744ARUZRL7 is the tape-and-reel version (7-inch reel) intended for automated pick-and-place assembly. The silicon die and electrical specifications are identical.
Are the AD9744ARUZRL7 and AD9744ARUZ electrically and functionally interchangeable?
Yes. Both order codes refer to the same AD9744 device in the same 28-lead TSSOP (RU-28) package with identical pinout, resolution (14-bit), update rate (up to 210 MSPS), and specified performance. The only difference is the shipping packaging format, so they are interchangeable in the target design.
What are the key specifications of the AD9744?
The AD9744 is a 14-bit current-output TxDAC with a maximum update rate of 210 MSPS, an on-chip 1.2 V bandgap reference, and a nominal full-scale output current of 20 mA. It operates from a 3.0 V to 3.6 V analog supply and a 2.7 V to 3.6 V digital supply, and is specified for the industrial temperature range of -40°C to +85°C.
Which package do the AD9744ARUZRL7 and AD9744ARUZ use?
Both parts use the 28-lead TSSOP (Thin Shrink Small Outline Package), identified by Analog Devices as the RU-28 package. The package is RoHS-compliant, as indicated by the "Z" suffix in both order codes.
Why would a designer choose the AD9744ARUZRL7 instead of the AD9744ARUZ?
The AD9744ARUZRL7 is supplied on a 7-inch tape-and-reel, which is compatible with automated surface-mount assembly lines and is typically preferred for high-volume production. The AD9744ARUZ in trays or tubes is more convenient for prototyping, low-volume runs, or manual handling.
Do both parts share the same pinout and PCB footprint?
Yes. Since both order codes are the same AD9744 die in the same 28-lead TSSOP package, the pinout and PCB land pattern are identical. A board designed for one will accept the other without layout changes.
What is the operating temperature range for the AD9744ARUZRL7 and AD9744ARUZ?
Both parts are specified over the industrial temperature range of -40°C to +85°C, consistent with the standard AD9744 grade in the RU-28 package.
Are both order codes RoHS compliant?
Yes. The "Z" in both AD9744ARUZRL7 and AD9744ARUZ denotes the RoHS-compliant version of the device, per Analog Devices order code conventions.