Part A
AD5444YRMZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1980 PCS
- Package
- MSOP-10
- Series
- Data Acquisition - Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5444YRMZ is a functionally equivalent replacement candidate for the AD5444YRM, sharing the same 12-bit DAC architecture, serial interface, and MSOP-10 footprint. The primary distinction is the YRMZ's RoHS-compliant lead-frame finish, which does not affect electrical performance or pin compatibility. Designers should confirm solder profile compatibility with their assembly process before substituting.
Resolution
High match
Package Type
High match
Interface Type
High match
RoHS Compliance
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5444YRMZ | AD5444YRM | Why it matters |
|---|---|---|---|
| Resolution | 12 bit | 12 bit | Determines the number of discrete output levels and the achievable precision of the DAC. |
| Number of D/A Converters | 1 | 1 | Defines how many independent analog output channels the device can drive. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Indicates whether an external op-amp or buffer is required to produce a usable voltage output. |
| Interface | SPI, DSP | SPI, DSP | Determines compatibility with the host controller's serial communication bus. |
| Supply Voltage - Digital | 2.5 V to 5.5 V | 2.5 V to 5.5 V | Must match the logic-level supply of the controlling device to ensure reliable data transfer. |
| Supply Voltage - Analog | 2.5 V to 5.5 V | 2.5 V to 5.5 V | Sets the reference and output compliance range of the current-steering DAC core. |
| Operating Temperature Range | -40°C to 125°C | -40°C to 125°C | Ensures the device meets specifications across the intended application environment. |
| Package / Case | 10-TFSOP, 10-MSOP | 10-TFSOP, 10-MSOP | Affects PCB footprint, thermal performance, and assembly compatibility. |
| Packaging | Tube | Tape & Reel | Determines the delivery format and suitability for automated high-volume assembly lines. |
| Moisture Sensitivity Level (MSL) | MSL 1 (Unlimited) | MSL 1 (Unlimited) | Specifies floor-life and baking requirements before reflow soldering. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5444YRMZ | AD5444YRM |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 12 | 12 |
| Number of D/A Converters | 1 | 1 |
| Settling Time | 110ns | 110ns |
| Output Type | Current - Unbuffered | Current - Unbuffered |
| Differential Output | Yes | Yes |
| Data Interface | SPI, DSP | SPI, DSP |
| Reference Type | External | External |
| Voltage - Supply, Analog | 2.5V ~ 5.5V | 2.5V ~ 5.5V |
| Voltage - Supply, Digital | 2.5V ~ 5.5V | 2.5V ~ 5.5V |
| INL / DNL(LSB) | ±0.5 (Max), ±1 (Max) | ±0.5 (Max), ±1 (Max) |
| Architecture | R-2R | R-2R |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
Frequently asked questions
What is the difference between the AD5444YRMZ and the AD5444YRM?
The AD5444YRMZ is the RoHS-compliant, lead-free version of the AD5444YRM. Both are 12-bit, high-bandwidth multiplying DACs in a 10-lead MSOP package, but the AD5444YRMZ is specified with a lead-free, halogen-free molding compound and is fully RoHS compliant, while the AD5444YRM contains lead in its package termination finish and is not RoHS compliant.
Are the AD5444YRMZ and AD5444YRM functionally interchangeable?
Yes. Both devices share the same die, electrical specifications, pinout, and 10-lead MSOP package footprint. The only difference is the package materials and termination finish related to RoHS compliance. In a design that does not require RoHS compliance, the AD5444YRM can be used interchangeably with the AD5444YRMZ, and vice versa, provided the solder process is compatible with the respective termination finish.
What are the key specifications of the AD5444YRMZ and AD5444YRM?
Both are 12-bit current-output multiplying DACs with a 2.5 V to 5.5 V supply range, ±1 LSB INL, ±1 LSB DNL, a 10 MHz multiplying bandwidth, and a 50 MHz serial interface. They feature a 4-quadrant multiplication capability, on-chip feedback resistor, and a power-on reset to zero scale. Operating temperature range is −40°C to +125°C.
Is the AD5444YRMZ a drop-in replacement for the AD5444YRM?
Yes, the AD5444YRMZ is a drop-in replacement for the AD5444YRM. Both have identical pinouts, package dimensions, and electrical performance. The only consideration is that the AD5444YRMZ is lead-free and RoHS compliant, so the soldering profile and PCB finish should be compatible with lead-free assembly if migrating from the leaded AD5444YRM.
Which part number should be used for new designs requiring RoHS compliance?
The AD5444YRMZ should be used for new designs requiring RoHS compliance. It is the lead-free, RoHS-compliant variant of the AD5444YRM and is available from authorized distributors such as DigiKey, Mouser, and Analog Devices. The AD5444YRM is not RoHS compliant and is not recommended for new designs with RoHS requirements.
Do the AD5444YRMZ and AD5444YRM have the same package and pin configuration?
Yes. Both devices are offered in the same 10-lead MSOP (RM-10) package with identical pin assignments. The package outline, pin functions, and PCB land pattern are the same, ensuring mechanical and electrical compatibility between the two variants.
What is the operating temperature range for the AD5444YRMZ and AD5444YRM?
Both the AD5444YRMZ and AD5444YRM are specified for operation over the extended industrial temperature range of −40°C to +125°C. This is consistent across both variants as they share the same silicon die and electrical specifications.
Are the AD5444YRMZ and AD5444YRM available from authorized distributors?
The AD5444YRMZ is an active, RoHS-compliant part available from authorized distributors including DigiKey, Mouser, and Analog Devices. The AD5444YRM is a non-RoHS legacy variant; availability may be limited or subject to last-time-buy status. Designers should verify current inventory and lifecycle status with the manufacturer or authorized distributor before specifying either part.