Part A
AD9739BBC
ADI公司
- Lifecycle
- Active
- Stock
- 8747 件
- Series
- 資料獲取-數模轉換器（DAC）
Replacement verdict
Compatible functional replacement candidate
The AD9739BBCZ and AD9739BBC are functionally equivalent 14-bit, 2.5 GSPS RF digital-to-analog converters from Analog Devices, differing only in the RoHS-compliant versus non-RoHS package finish. The AD9739BBCZ is a direct drop-in replacement for the AD9739BBC, with identical electrical, thermal, and functional characteristics; the only validation point is confirming RoHS compliance requirements for the target assembly.
Resolution and Sample Rate
High match
Package and Pinout
High match
Supply and Interface
High match
RoHS Compliance
Validation required
Parts at a glance
Part B
AD9739BBCZ
ADI公司
- Lifecycle
- Active
- Stock
- 4950 件
- Package
- BGA-160
- 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 | AD9739BBCZ | AD9739BBC | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 14 bit | Determines the quantization accuracy and achievable dynamic range of the DAC output; identical resolution means equivalent signal fidelity potential. |
| Number of DAC Channels | 1 | 1 | Defines whether the device is single or multi-channel; both are single-channel, so board-level channel architecture is interchangeable. |
| Sampling Rate (Max) | 2.5 GSPS | 2.5 GSPS | Sets the maximum update rate and usable output bandwidth; matching rates ensure the same high-speed signal generation capability. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Determines the external output network and termination required; identical output type allows the same analog front-end design. |
| Data Interface | LVDS - Parallel | LVDS - Parallel | Defines the digital input signaling and timing scheme; matching interfaces ensure FPGA/ASIC drivers and PCB routing remain compatible. |
| Supply Voltage | 1.8 V, 3.3 V | 1.8 V, 3.3 V | Determines power rail requirements and level compatibility; identical rails mean the same power supply design can be reused. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Defines the environmental envelope for reliable operation; matching ranges ensure equivalent thermal robustness in the application. |
| Package / Mounting Type | 160-LFBGA, CSPBGA - Surface Mount | 160-LFBGA, CSPBGA - Surface Mount | Package and mounting determine footprint and assembly compatibility; the Z suffix denotes a RoHS-compliant lead finish variant of the same package. |
| RoHS / Lead Finish | RoHS Compliant (Pb-free) | Contains Lead (non-RoHS) | Affects regulatory compliance and solder process selection; the Z-suffix part is Pb-free while the non-Z part contains lead, which matters for RoHS-restricted markets. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9739BBC | AD9739BBCZ |
|---|---|---|
| Part Status | Discontinued at DigiKey | Active |
| Base Product Number | AD9739 | - |
| Number of Bits | 14 | 14 |
| Number of D / A Converters | 1 | - |
| Settling Time | 13ns (Typ) | 13ns (Typ) |
| Output Type | Current - Unbuffered | Current - Unbuffered |
| Differential Output | Yes | Yes |
| Data Interface | LVDS - Parallel | LVDS - Parallel |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 1.7V ~ 1.9V, 3.1V ~ 3.5V | 1.7V ~ 1.9V, 3.1V ~ 3.5V |
| Voltage - Supply, Digital | 1.7V ~ 1.9V, 3.1V ~ 3.5V | 1.7V ~ 1.9V, 3.1V ~ 3.5V |
| INL / DNL (LSB) | ±1.3, ±0.8 | - |
| Architecture | Quad-Switch | Quad-Switch |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | - |
| Packaging | Tray | - |
| Number of D/A Converters | - | 1 |
| INL / DNL(LSB) | - | ±1.3, ±0.8 |
Frequently asked questions
What is the difference between AD9739BBCZ and AD9739BBC?
The AD9739BBCZ and AD9739BBC are functionally identical 14-bit, 2.5 GSPS RF digital-to-analog converters. The primary difference is the package/ordering suffix: the "Z" suffix in AD9739BBCZ denotes RoHS-compliant lead-free construction, while AD9739BBC is the non-RoHS (leaded) version. Both are supplied in a 160-ball CSP_BGA package and share the same electrical specifications.
Are AD9739BBCZ and AD9739BBC electrically and functionally interchangeable?
Yes. Both parts share the same 14-bit resolution, 2.5 GSPS maximum update rate, dual-port LVDS input interface, and on-chip features such as the numerically controlled oscillator (NCO) and digital inverse sinc filter. The datasheet specifications apply equally to both orderable models; the only documented distinction is the RoHS compliance status indicated by the "Z" suffix.
What are the key performance specifications of the AD9739?
The AD9739 is a 14-bit DAC with a maximum update rate of 2.5 GSPS. It supports an input data rate via dual-port LVDS up to 1.25 GSPS per port (2.5 GSPS total). It operates from 1.8 V and 3.3 V supplies and includes an on-chip NCO, digital inverse sinc filter, and a 2x interpolation option. Verified AC performance includes an SFDR of approximately 78 dBc at 1.0 GHz output with a 2.5 GSPS update rate, per the Analog Devices datasheet.
What package do AD9739BBCZ and AD9739BBC use, and is it the same for both?
Both AD9739BBCZ and AD9739BBC are supplied in a 160-ball CSP_BGA package with a 12 mm × 12 mm body. The package, pinout, and PCB land pattern are identical between the two orderable models, so board-level layout is unaffected by the choice between them.
Does the "Z" suffix in AD9739BBCZ affect electrical performance?
No. The "Z" suffix is an Analog Devices ordering convention indicating RoHS-compliant, lead-free construction. It does not change the device's electrical specifications, resolution, speed grade, or functional behavior. Electrical performance is identical to the AD9739BBC.
Which part should be selected for a RoHS-compliant design?
AD9739BBCZ should be selected for RoHS-compliant designs, as its "Z" suffix denotes lead-free, RoHS-compliant construction. AD9739BBC is the non-RoHS version and should only be used where leaded construction is acceptable or specifically required.
What are the supply and interface requirements common to both parts?
Both AD9739BBCZ and AD9739BBC require 1.8 V and 3.3 V supplies and use a dual-port LVDS input data interface supporting up to 1.25 GSPS per port. They also provide a serial peripheral interface (SPI) for configuration of the NCO, inverse sinc filter, and other on-chip functions. These requirements are identical for both orderable models.