Part A
AD9744ACPZ
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1927 ПКС
- Package
- WFQFN-32
- Series
- Сбор данных - цифровые в аналоговые преобразователи (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9744ACPZ and AD9744ACPRL7 are functionally identical 14-bit current-output DACs from the same manufacturer, differing only in packaging format (tray vs. tape-and-reel). Both share the same die, electrical specifications, and 32-lead LFCSP package, making them interchangeable for design and qualification purposes; the choice between them is driven solely by assembly and inventory handling requirements.
Resolution and DAC Architecture
High match
Package and Pinout
High match
Supply and Reference Requirements
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD9744ACPRL7
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3236 ПКС
- Package
- WFQFN-32
- Series
- Сбор данных - цифровые в аналоговые преобразователи (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 | AD9744ACPZ | AD9744ACPRL7 | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 14 bit | Determines the quantization accuracy of the DAC output; both parts provide identical 14-bit resolution, so they are functionally equivalent in precision. |
| Number of DAC Channels | 1 | 1 | Both are single-channel current-output DACs, so channel count matches for direct substitution. |
| Output Type | Current - Unbuffered | Current - Unbuffered | The output architecture must match for the downstream analog signal chain to remain compatible. |
| Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | Operating supply range must be compatible with the system power rail; identical ranges confirm interchangeability. |
| Package / Case | 32-WFQFN Exposed Pad, CSP | 32-WFQFN Exposed Pad, CSP | Package and footprint must match for board-level drop-in replacement; both use the same LFCSP package. |
| Mounting Type | Surface Mount | Surface Mount | Assembly method must be compatible with the PCB process; both are surface-mount devices. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Thermal range must cover the application environment; identical industrial ranges confirm equivalent robustness. |
| Data Interface | Parallel | Parallel | The digital input interface must match the host controller; both use a parallel interface for direct compatibility. |
| Packaging / Ordering Format | Tray / Tube (individual) | Tape & Reel (RL7 suffix) | The RL7 suffix denotes tape-and-reel packaging for automated assembly, while the base part is supplied in trays/tubes; this affects manufacturing handling but not device function. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9744ACPZ | AD9744ACPRL7 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Obsolete |
| Number of Bits | 14 | - |
| Number of D/A Converters | 1 | - |
| Settling Time | 11ns (Typ) | - |
| Output Type | Current - Unbuffered | - |
| Differential Output | Yes | - |
| Data Interface | Parallel | - |
| Reference Type | External, Internal | - |
| Voltage - Supply, Analog | 2.7V ~ 3.6V | - |
| Voltage - Supply, Digital | 2.7V ~ 3.6V | - |
| INL / DNL(LSB) | ±0.8, ±0.5 | - |
| Architecture | Current Source | - |
| Operating Temperature | -40°C ~ 85°C | - |
Frequently asked questions
What is the difference between AD9744ACPZ and AD9744ACPRL7?
Both are the same AD9744 14-bit, 210 MSPS TxDAC digital-to-analog converter from Analog Devices in a 32-lead LFCSP (CP-32-2) package. The AD9744ACPZ is the standard tray/ tube ordering option, while AD9744ACPRL7 is the tape-and-reel packaging variant (7-inch reel). The silicon die, electrical specifications, and package outline are identical; only the shipping packaging and order quantity differ.
Are AD9744ACPZ and AD9744ACPRL7 electrically and functionally interchangeable?
Yes. Both part numbers refer to the same AD9744 converter with identical resolution (14-bit), update rate (up to 210 MSPS), supply requirements (3.0 V to 3.6 V), and 32-lead LFCSP pinout. They can be used interchangeably in the same PCB design; the only difference is the delivery format (tray vs. tape-and-reel).
What are the key performance specifications of the AD9744?
The AD9744 is a 14-bit current-output DAC with a maximum update rate of 210 MSPS, an SFDR of typically 83 dBc at 10 MHz output, and an INL of ±1.5 LSB. It operates from a single 3.0 V to 3.6 V supply, consumes approximately 135 mW at 3.3 V, and provides a differential current output of 2 mA to 20 mA. It includes an on-chip 1.2 V reference and a flexible parallel CMOS interface.
Which package do AD9744ACPZ and AD9744ACPRL7 use, and is it RoHS compliant?
Both parts are supplied in a 32-lead LFCSP (lead frame chip scale package), designated CP-32-2 by Analog Devices, measuring 5 mm × 5 mm. The "Z" suffix in both part numbers indicates RoHS-compliant, lead-free construction per Analog Devices ordering conventions.
Why would a designer choose AD9744ACPRL7 over AD9744ACPZ?
AD9744ACPRL7 is supplied on a 7-inch tape-and-reel, which is preferred for automated high-volume SMT assembly lines. AD9744ACPZ is typically supplied in trays or tubes, which are more suitable for prototyping, low-volume runs, or manual handling. The choice is purely a manufacturing/packaging decision, not a performance one.
What is the maximum clock/update rate and resolution of the AD9744?
The AD9744 offers 14-bit resolution with a maximum update rate of 210 MSPS. Its parallel CMOS input accepts 14-bit data words, and the DAC core is designed for high-speed communications, instrumentation, and waveform-generation applications requiring wide dynamic range.
What supply voltage and power consumption do AD9744ACPZ and AD9744ACPRL7 require?
Both variants operate from a single analog and digital supply of 3.0 V to 3.6 V (nominally 3.3 V). Typical power consumption is approximately 135 mW at 3.3 V, making them suitable for portable and power-sensitive signal-chain designs.
Can AD9744ACPZ and AD9744ACPRL7 be used in new designs, or are they obsolete?
Both part numbers are listed as active by Analog Devices and its authorized distributors. Designers should confirm current lifecycle status and availability with the manufacturer or an authorized distributor (such as DigiKey, Mouser, or Analog Devices directly) before committing to volume production, since lifecycle status can change.