Part A
AD9739ABBCZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3752 PCS
- Package
- BGA-160
- Series
- Data Acquisition - Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9739ABBCZ and AD9739BBCZRL are functionally equivalent 14-bit 2.5 GSPS RF digital-to-analog converters sharing the same core silicon, resolution, and speed grade. The primary distinction lies in packaging format and ordering configuration, with the AD9739BBCZRL supplied as a tape-and-reel variant of the same device. Designers can treat these parts as interchangeable for new designs, provided the reel packaging and moisture sensitivity handling align with the production environment.
Resolution and Sample Rate
High match
Package Type
High match
Pin Configuration
High match
Packaging and Ordering Format
Validation required
Parts at a glance
Part B
AD9739BBCZRL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7119 PCS
- Package
- LFBGA-160
- Series
- Data Acquisition - 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 | AD9739ABBCZ | AD9739BBCZRL | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 14 bit | Determines the quantization accuracy of the DAC output; identical resolution means equivalent signal fidelity potential. |
| Number of DAC Channels | 1 | 1 | Confirms both are single-channel DACs, so channel count does not affect substitutability. |
| Maximum Update Rate | 2.5 GSPS | 2.5 GSPS | Sets the maximum sampling/update frequency; matching rates ensure equivalent high-speed performance. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Defines the analog output interface; identical output type means the same external output network can be used. |
| Data Interface | LVDS - Parallel | LVDS - Parallel | Determines the digital input signaling and timing; matching interfaces allow drop-in replacement on the same board. |
| Supply Voltage | 1.8 V, 3.3 V | 1.8 V, 3.3 V | Confirms power rail compatibility; identical rails mean no power supply redesign is needed. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Ensures both parts meet the same environmental requirements for the target application. |
| Package / Case | 160-LFBGA, CSPBGA | 160-LFBGA, CSPBGA | Identical package and footprint allow the parts to share the same PCB land pattern. |
| Packaging | Tray | Tape & Reel (TR) | Affects manufacturing handling and assembly line feed method; the electrical part is the same but the delivery format differs. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9739ABBCZ | AD9739BBCZRL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Number of Bits | 14 | 14 |
| Number of D/A Converters | 1 | 1 |
| Settling Time | 13µs (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) | ±2.5, ±2 | ±1.3, ±0.8 |
| Architecture | Quad-Switch | Quad-Switch |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the AD9739ABBCZ and AD9739BBCZRL?
Both parts are functionally identical 14-bit, 2.5 GSPS RF digital-to-analog converters in a 160-ball CSP-BGA package. The AD9739ABBCZ is supplied in tray packaging, while the AD9739BBCZRL is supplied in tape-and-reel packaging for automated assembly. The core silicon, specifications, and performance are the same.
Are the AD9739ABBCZ and AD9739BBCZRL electrically and functionally interchangeable?
Yes. Both share the same datasheet, die, and package (160-ball CSP-BGA, 12 mm × 12 mm). The only documented difference is the shipping format (tray vs. tape-and-reel), so they are interchangeable in the target design provided the assembly process supports the respective packaging.
What is the resolution and maximum update rate of the AD9739A/AD9739B?
The AD9739 is a 14-bit DAC with a maximum update rate of 2.5 GSPS, supporting direct RF synthesis in the first and second Nyquist zones.
What is the difference between the A and B speed grades of the AD9739?
The AD9739A and AD9739B are speed-grade variants of the same converter family. The AD9739A is specified for a maximum update rate of 2.5 GSPS, while the AD9739B is specified for a lower maximum update rate. Designers should confirm the exact grade marking on the ordered part against the manufacturer datasheet before finalizing timing margins.
What digital input interface does the AD9739 use?
The AD9739 uses a dual-port LVDS input interface with a DDR (double data rate) clock, allowing the 14-bit data to be delivered at the DAC update rate. An on-chip DLL and clock management circuitry support the high-speed interface.
Does the AD9739 include on-chip digital signal processing features?
Yes. The AD9739 integrates a digital interpolation filter and a numerically controlled oscillator (NCO) for digital upconversion, along with gain and offset adjustment, enabling direct RF synthesis without external DSP in many applications.
What package and operating temperature range do the AD9739ABBCZ and AD9739BBCZRL use?
Both parts are offered in a 160-ball CSP-BGA package and are specified for the industrial temperature range of −40°C to +85°C, as documented in the Analog Devices datasheet.
Which packaging option should be selected for high-volume automated assembly?
The AD9739BBCZRL, supplied in tape-and-reel, is intended for automated pick-and-place assembly lines. The AD9739ABBCZ tray option is typically used for prototyping, low-volume runs, or manual assembly.