Part A
AD9764ARUZRL7
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7757 PCS
- Package
- TSSOP-28
- Series
- Data Acquisition - Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9764ARUZRL7 and AD9760ARU50RL7 are both 14-bit current-output DACs from the same TxDAC family, sharing a 28-lead TSSOP footprint and 48-pin LQFP option with closely aligned resolution and architecture. However, they differ in maximum update rate, supply voltage range, and specified dynamic performance, so the AD9760ARU50RL7 can serve as a functional substitute only after validating clock rate, output compliance, and spectral requirements against the target design.
Resolution
High match
Update Rate
Validation required
Supply Voltage
Validation required
Package Type
High match
Parts at a glance
Part B
AD9760ARU50RL7
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 8350 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 | AD9764ARUZRL7 | AD9760ARU50RL7 | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 10 bit | 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. |
| Number of D/A Converters | 1 | 1 | Both are single-channel DACs, so channel count is compatible for single-path signal chains. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Current-output DACs require an external op-amp for voltage conversion; matching output type ensures the same external analog front-end topology can be reused. |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Compatible supply ranges allow the same power rail design to be used for either part. |
| Data Interface | Parallel | Parallel | Both use a parallel input interface, so the digital host connection and timing scheme remain compatible. |
| Package / Case | 28-TSSOP | 28-TSSOP | Identical package and pinout enable drop-in board replacement without layout changes. |
| Settling Time | 35 ns | 35 ns | Matching settling time ensures comparable transient response and update-rate capability in the target application. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Identical temperature ratings confirm both parts suit the same environmental conditions. |
| Mounting Type | Surface Mount | Surface Mount | Both are surface-mount devices, compatible with the same assembly process. |
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 | AD9764ARUZRL7 | AD9760ARU50RL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Obsolete |
| Number of Bits | 14 | 10 |
| Number of D/A Converters | 1 | 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) | ±2.5, ±1.5 | ±0.5, ±0.25 |
| Architecture | Current Source | Current Source |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the AD9764ARUZRL7 and the AD9760ARU50RL7?
The AD9764ARUZRL7 is a 14-bit, 125 MSPS TxDAC digital-to-analog converter, while the AD9760ARU50RL7 is a 10-bit, 125 MSPS TxDAC. Both are members of Analog Devices' TxDAC family and share the same 28-lead TSSOP package and pinout, but they differ in resolution (14-bit vs 10-bit) and therefore in dynamic performance specifications such as SNR and SFDR.
Are the AD9764ARUZRL7 and AD9760ARU50RL7 pin-compatible?
Yes. Both devices are offered in the same 28-lead TSSOP (RU-28) package with the same pinout, which allows board-level interchangeability. However, because the resolution differs (14-bit vs 10-bit), the digital input data bus width and the achievable performance differ, so a design change must account for the reduced bit depth when substituting the AD9760 for the AD9764.
What is the maximum update rate of these two DACs?
Both the AD9764ARUZRL7 and the AD9760ARU50RL7 are specified for a maximum update rate of 125 MSPS, making them suitable for high-speed communications, instrumentation, and waveform synthesis applications.
What is the resolution of each device?
The AD9764ARUZRL7 provides 14-bit resolution, offering finer quantization and lower quantization noise. The AD9760ARU50RL7 provides 10-bit resolution. The higher resolution of the AD9764 generally yields better SNR and lower distortion for demanding signal-chain applications.
Do both parts operate from the same supply voltage?
Yes. Both the AD9764 and AD9760 are specified for a single 3.0 V to 5.5 V analog supply and a 2.7 V to 5.5 V digital supply, with a nominal operating point of 5 V. This common supply range supports similar power-supply design for either device.
What is the digital input interface of these DACs?
Both devices use a parallel CMOS-compatible digital input interface. The AD9764ARUZRL7 accepts a 14-bit parallel word, while the AD9760ARU50RL7 accepts a 10-bit parallel word. The input data is latched on the rising edge of the clock, and both parts support interleaved or straight binary input coding as configured by the device.
Can the AD9760ARU50RL7 be used as a drop-in replacement for the AD9764ARUZRL7?
Physically, the parts are pin-compatible in the 28-lead TSSOP package, but they are not functionally equivalent drop-in replacements. The AD9760 is a 10-bit device, so the lower 4 bits of a 14-bit data bus would be ignored or must be tied off, and the system's SNR and SFDR performance would be reduced. Substitution requires validation against the target design's resolution and dynamic performance requirements.
What are the typical applications for these TxDAC converters?
Both the AD9764ARUZRL7 and AD9760ARU50RL7 are intended for high-speed signal synthesis applications such as communications transmit paths, base stations, cable modems, instrumentation, and direct digital synthesis (DDS) systems, where their 125 MSPS update rate and CMOS-compatible parallel interface are advantageous.