Part A
AD9764ARZ
ADI公司
- Lifecycle
- Active
- Stock
- 5181 件
- Series
- 資料獲取-數模轉換器（DAC）
Replacement verdict
Compatible functional replacement candidate
The AD9764ARZ and AD9760ARU are both 10-bit high-speed CMOS DACs from Analog Devices sharing the same TxDAC core architecture, 28-lead package footprint, and 5 V supply rail, making the AD9764ARZ a viable functional replacement candidate for the AD9760ARU in most designs. However, the two parts differ in specified update rate, full-scale output current range, and guaranteed dynamic performance, so the replacement should be validated against the target application's sampling rate, output compliance, and SFDR/SNR requirements before production release.
Resolution and DAC Architecture
High match
Package and Pin Configuration
High match
Maximum Update Rate
Validation required
Full-Scale Output Current Range
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 | AD9764ARZ | AD9760ARU | Why it matters |
|---|---|---|---|
| Resolution | 14 bits | 10 bits | Resolution determines the number of discrete output levels; a 14-bit DAC provides 16x finer quantization than a 10-bit DAC, directly affecting signal fidelity and dynamic range. |
| Maximum Update Rate | 125 MSPS | 125 MSPS | The maximum clock rate sets the highest sample rate the DAC can support; both parts share the same 125 MSPS ceiling, so throughput is equivalent. |
| Package / Case | 28-Lead SOIC (Wide) | 28-Lead TSSOP | Footprint and board layout compatibility differ; SOIC vs TSSOP requires different PCB land patterns, so they are not drop-in replacements without layout changes. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Both operate from a single 5 V supply, so power rail requirements are compatible for substitution. |
| Output Type | Current output (differential) | Current output (differential) | Both provide differential current outputs, allowing similar external I/V conversion and filtering networks to be reused. |
| SFDR (at specified output frequency) | ~52 dBc at 5 MHz output | ~52 dBc at 5 MHz output | Spurious-free dynamic range indicates spectral purity; comparable SFDR means similar distortion performance in the same signal band. |
| INL (Integral Nonlinearity) | ±2.5 LSB (typical) | ±0.5 LSB (typical) | INL measures deviation from an ideal transfer function; the 10-bit part achieves tighter relative linearity, but absolute accuracy in volts depends on resolution and reference. |
| Power Dissipation | ~155 mW | ~155 mW | Similar power consumption means thermal and supply design can remain largely unchanged when substituting. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Identical industrial temperature ratings ensure both parts suit the same environmental conditions. |
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 | AD9764ARZ | AD9760ARU |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC,Analog Devices Inc. |
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Active |
| Number of Bits | 14 | 10 |
| Number of D/A Converters | - | 1 |
| Settling Time | 35ns (Typ) | 35ns (Typ) |
| Output Type | Current - Unbuffered | Current - Unbuffered |
| Differential Output | Yes | Yes |
| Data Interface | Parallel | Parallel |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| INL / DNL(LSB) | - | ±0.5, ±0.25 |
| Architecture | Current Source | Current Source |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Base Product Number | AD9764 | - |
| Number of D / A Converters | 1 | - |
| INL / DNL (LSB) | ±2.5, ±1.5 | - |
| Mounting Type | Surface Mount | - |
| Packaging | Tube | - |
Frequently asked questions
What are the key differences between the AD9764ARZ and AD9760ARU?
The AD9764ARZ is a 14-bit, 125 MSPS TxDAC+ digital-to-analog converter in a 28-lead SOIC package, while the AD9760ARU is a 10-bit, 125 MSPS TxDAC+ DAC in a 28-lead TSSOP package. The primary differences are resolution (14-bit vs 10-bit) and package type (SOIC vs TSSOP).
Do the AD9764ARZ and AD9760ARU have the same resolution?
No. The AD9764ARZ provides 14-bit resolution, whereas the AD9760ARU provides 10-bit resolution. This affects the achievable dynamic range and quantization noise in the target application.
Are the AD9764ARZ and AD9760ARU pin-compatible?
No. The AD9764ARZ is supplied in a 28-lead SOIC package and the AD9760ARU in a 28-lead TSSOP package. The package footprints and land patterns differ, so they are not drop-in replacements on the same PCB layout.
Do both devices support the same maximum update rate?
Yes. Both the AD9764ARZ and AD9760ARU are specified for a maximum update rate of 125 MSPS, making them suitable for comparable high-speed DAC applications where resolution requirements differ.
What is the supply voltage requirement for the AD9764ARZ and AD9760ARU?
Both devices operate from a single 2.7 V to 5.5 V supply, with a nominal 3.3 V or 5 V rail commonly used. Designers should confirm the exact operating conditions against the respective manufacturer datasheets.
Can the AD9760ARU be used as a lower-cost substitute for the AD9764ARZ?
Only if the application can tolerate 10-bit instead of 14-bit resolution and the PCB is redesigned for the TSSOP footprint. The substitution must be validated against system performance requirements and the manufacturer datasheets.
Do both DACs offer the same digital input interface?
Both devices accept parallel digital input data at their specified resolution, but the AD9764ARZ uses 14 data bits while the AD9760ARU uses 10 data bits. The input bus width and timing must be matched to the selected device.