Part A
AD9764ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5181 PCS
- Series
- Data Acquisition - Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9764ARZ and AD9760ARURL7 are both 10-bit current-output DACs from Analog Devices in a 28-lead SOIC package, sharing the same resolution, supply voltage range, and temperature grade, so the AD9760ARURL7 can serve as a functional substitute for the AD9764ARZ in most designs. However, the two parts differ in update rate and spurious-free dynamic range, and the AD9760ARURL7 is supplied in tape-and-reel packaging, so the design should be validated against the target sample rate and dynamic performance requirements before committing to the replacement.
Resolution
High match
Package Type
High match
Update Rate
Validation required
Dynamic Performance
Validation required
Parts at a glance
Part B
AD9760ARURL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3271 PCS
- Package
- TSSOP-28
- 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 | AD9764ARZ | AD9760ARURL7 | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 10 bit | Resolution determines the number of discrete output levels; a 14-bit DAC offers far finer quantization than a 10-bit DAC, directly affecting signal fidelity and dynamic range. |
| Number of D/A Converters | 1 | 1 | Both are single-channel DACs, so channel count is not a differentiator for substitutability. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Both provide unbuffered current outputs, requiring an external op-amp for voltage conversion; matching output architecture simplifies circuit reuse. |
| Supply Voltage | 2.7V to 5.5V | 2.7V to 5.5V | Identical supply range means both can operate from the same power rail without redesign. |
| Package / Case | 28-SOIC | 28-SOIC | Same package and pin count allow drop-in board compatibility if pinouts align. |
| Mounting Type | Surface Mount | Surface Mount | Both are surface-mount devices, compatible with the same assembly process. |
| Settling Time | 35 ns | 35 ns | Matching settling time indicates comparable speed performance for high-frequency signal generation. |
| Operating Temperature | -40°C to 85°C | -40°C to 85°C | Identical temperature range ensures both parts suit the same environmental conditions. |
| Data Interface | Parallel | Parallel | Both use a parallel input interface, so the same digital host connection can drive either device. |
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 | AD9760ARURL7 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Obsolete |
| Base Product Number | AD9764 | - |
| Number of Bits | 14 | - |
| Number of D / A Converters | 1 | - |
| Settling Time | 35ns (Typ) | - |
| Output Type | Current - Unbuffered | - |
| Differential Output | Yes | - |
| Data Interface | Parallel | - |
| Reference Type | External, Internal | - |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | - |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | - |
| INL / DNL (LSB) | ±2.5, ±1.5 | - |
| Architecture | Current Source | - |
| Operating Temperature | -40°C ~ 85°C | - |
| Mounting Type | Surface Mount | - |
| Packaging | Tube | - |
Frequently asked questions
What are the key differences between the AD9764ARZ and AD9760ARURL7?
The AD9764ARZ is a 14-bit, 125 MSPS TxDAC digital-to-analog converter in a 28-lead SOIC package, while the AD9760ARURL7 is a 10-bit, 125 MSPS TxDAC DAC in a 28-lead TSSOP package supplied in tape-and-reel format. The primary differences are resolution (14-bit vs 10-bit) and package type (SOIC vs TSSOP).
Do the AD9764ARZ and AD9760ARURL7 have the same update rate?
Yes. Both devices are specified for a maximum update rate of 125 MSPS, making them pin-compatible in terms of speed grade within the TxDAC family.
Are the AD9764ARZ and AD9760ARURL7 pin-compatible?
Both are 28-lead devices from the same TxDAC family and share a common pinout, but they are offered in different packages (SOIC for the AD9764ARZ and TSSOP for the AD9760ARURL7). PCB land patterns differ between SOIC and TSSOP, so a board redesign is required when swapping between the two package options.
What is the resolution difference and how does it affect performance?
The AD9764ARZ provides 14-bit resolution, offering finer quantization and lower quantization noise than the 10-bit AD9760ARURL7. The higher resolution of the AD9764ARZ supports better dynamic range and lower spurious content in signal synthesis applications.
What are the typical supply and output characteristics of these DACs?
Both devices are current-output TxDAC converters that operate from a single 3.0 V to 5.5 V supply and provide a differential current output typically in the 2 mA to 20 mA range, suitable for direct interfacing to transformers or op-amp based I/V stages.
Can the AD9760ARURL7 be used as a drop-in replacement for the AD9764ARZ?
No. Although both are 125 MSPS TxDAC devices, the AD9760ARURL7 is 10-bit while the AD9764ARZ is 14-bit, and they use different packages (TSSOP vs SOIC). A direct drop-in replacement is not possible without verifying resolution requirements and redesigning the PCB footprint.
What package and packaging options distinguish these two parts?
The AD9764ARZ is supplied in a 28-lead SOIC package in tube or tray format, while the AD9760ARURL7 is supplied in a 28-lead TSSOP package in tape-and-reel (7-inch reel) format, indicated by the "RL7" suffix.