Part A
AD9736BBCZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5340 PCS
- Package
- BGA-160
- Series
- Data Acquisition - Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9735BBCZRL is a viable functional replacement candidate for the AD9736BBCZ, sharing the same 10-bit/12-bit DAC family architecture, 160-lead CSPBGA package, and 1.8 V/3.3 V supply scheme, though the lower resolution and reduced update rate require validation against application accuracy and bandwidth requirements.
Resolution
Validation required
Update Rate
Validation required
Package Type
High match
Supply Voltage
High match
Parts at a glance
Part B
AD9735BBCZRL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5354 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 | AD9736BBCZ | AD9735BBCZRL | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 12 bit | Higher resolution provides finer output quantization and lower quantization noise, which directly affects achievable signal-to-noise ratio and spectral purity in DAC applications. |
| Update Rate (Max) | 1200 MSPS | 1200 MSPS | Maximum sample rate determines the highest signal bandwidth that can be synthesized; both parts share the same core speed, so bandwidth capability is equivalent. |
| Number of DAC Channels | 1 | 1 | Single-channel architecture means both devices serve the same single-tone or single-path signal chain topology. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Current-output DACs require an external I/V stage; matching output type ensures the analog front-end design can be reused. |
| Supply Voltage | 3.13 V to 3.47 V | 3.13 V to 3.47 V | Identical supply requirements allow the same power rail design and decoupling network to be used for either part. |
| Package / Case | 160-LFBGA, CSPBGA | 160-LFBGA, CSPBGA | Same package and footprint enable drop-in board replacement without layout changes. |
| Operating Temperature | -40°C to 85°C | -40°C to 85°C | Matching industrial temperature range ensures equivalent environmental robustness for the target application. |
| Interface Type | Parallel / LVDS | Parallel / LVDS | Same digital input interface allows the same FPGA or controller pinout and timing to drive either device. |
| Power Dissipation (Typical) | 1.1 W | 1.1 W | Equivalent power consumption means thermal design and supply sizing remain valid across both parts. |
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 | AD9736BBCZ | AD9735BBCZRL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Number of Bits | 14 | 12 |
| Number of D/A Converters | 1 | 1 |
| 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, 3.13V ~ 3.47V | 1.7V ~ 1.9V, 3.13V ~ 3.47V |
| Voltage - Supply, Digital | 1.7V ~ 1.9V, 3.13V ~ 3.47V | 1.7V ~ 1.9V, 3.13V ~ 3.47V |
| INL / DNL(LSB) | ±1, ±0.6 | ±0.50, ±0.25 |
| Architecture | Oversampling Interpolating DAC | Oversampling Interpolating DAC |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the AD9736BBCZ and AD9735BBCZRL?
The AD9736BBCZ is a 14-bit, 1.2 GSPS RF digital-to-analog converter, while the AD9735BBCZRL is a 12-bit, 1.2 GSPS RF DAC. Both are pin-compatible members of the AD973x family in a 160-ball CSP_BGA package, but they differ in resolution (14-bit vs 12-bit) and therefore in dynamic performance specifications such as SNR and SFDR.
Are the AD9736BBCZ and AD9735BBCZRL pin-compatible?
Yes. Both devices are offered in the same 160-ball CSP_BGA (BC-160-1) package with an identical pinout, allowing a common PCB footprint. However, because the AD9736BBCZ provides 14-bit resolution versus 12-bit on the AD9735BBCZRL, designers must verify that the system can accept the resolution difference before substituting one for the other.
What is the maximum update rate of these DACs?
Both the AD9736BBCZ and AD9735BBCZRL support a maximum DAC update rate of 1.2 GSPS, making them suitable for high-speed applications such as broadband communications, instrumentation, and radar signal synthesis.
What digital input interface do the AD9736BBCZ and AD9735BBCZRL use?
Both devices use a dual-port LVDS input interface with a maximum input data rate of 1.2 GSPS. The AD9736BBCZ accepts 14-bit input words, while the AD9735BBCZRL accepts 12-bit input words, so the driving FPGA or ASIC must be configured for the corresponding bus width.
What is the difference in resolution and how does it affect performance?
The AD9736BBCZ offers 14-bit resolution and the AD9735BBCZRL offers 12-bit resolution. The higher resolution of the AD9736BBCZ generally provides better SNR and lower quantization noise, which can improve spectral purity in demanding wideband synthesis applications. The AD9735BBCZRL may be adequate where 12-bit resolution meets the system noise budget.
What are the suffix differences between the BBCZ and BBCZRL ordering codes?
The "BBCZ" suffix indicates a RoHS-compliant 160-ball CSP_BGA package. The "RL" suffix on AD9735BBCZRL denotes tape-and-reel packaging for automated assembly, while AD9736BBCZ is typically supplied in tray form. The silicon and package type are otherwise the same family, so the difference is primarily packaging and quantity per reel.
Can the AD9735BBCZRL be used as a drop-in replacement for the AD9736BBCZ?
Physically the devices share the same package and pinout, but they are not functionally identical because of the 12-bit versus 14-bit resolution difference. A drop-in replacement is only valid if the system's digital interface, data formatting, and performance requirements are revalidated for 12-bit operation. Consult the respective datasheets before substituting.
What are the typical applications for the AD9736BBCZ and AD9735BBCZRL?
Both high-speed RF DACs are intended for broadband wired and wireless communications, direct RF synthesis, instrumentation and test equipment, radar and defense systems, and other applications requiring high update rates up to 1.2 GSPS with LVDS digital input.