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 AD9760ARUZ50RL7 are both 14-bit current-output DACs from Analog Devices in the same TSSOP-28 package, sharing a common functional architecture and pin family. While the AD9764ARUZRL7 offers a higher update rate and the AD9760ARUZ50RL7 is specified for a lower maximum clock, the two devices are functionally interchangeable in many designs, with the primary caveat being that the AD9760ARUZ50RL7 cannot be clocked at the higher rates supported by the AD9764ARUZRL7. Designers should validate the maximum sample rate, supply headroom, and dynamic performance requirements against the target application before substituting.
Resolution
High match
Output Type
High match
Maximum Update Rate
Validation required
Package Type
High match
Parts at a glance
Part B
AD9760ARUZ50RL7
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4123 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 | AD9760ARUZ50RL7 | 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 SFDR performance. |
| Number of D/A Converters | 1 | 1 | Both are single-channel DACs, so channel count is not a differentiator for substitutability in single-path signal chains. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Current-output DACs require an external op-amp I/V stage; matching output topology ensures the surrounding analog circuitry can be reused. |
| Supply Voltage | 2.7V to 5.5V | 2.7V to 5.5V | Identical supply range means both parts can operate from the same rail, simplifying power-supply design during substitution. |
| Package / Case | 28-TSSOP | 28-TSSOP | Same package and pin count allow a drop-in footprint replacement without PCB redesign. |
| Mounting Type | Surface Mount | Surface Mount | Both are surface-mount devices, so assembly processes remain compatible. |
| Operating Temperature | -40°C to 85°C | -40°C to 85°C | Matching industrial temperature ranges ensure both parts meet the same environmental requirements. |
| Data Interface | Parallel | Parallel | Both use a parallel input interface, so the digital host connection and timing scheme can remain unchanged. |
| Reference Type | External, Internal | External, Internal | Both support internal or external reference, giving flexibility in accuracy versus cost trade-offs during substitution. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9764ARUZRL7 | AD9760ARUZ50RL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Series | TxDAC® | TxDAC® |
| Part Status | Active | Active |
| 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 AD9760ARUZ50RL7?
The AD9764ARUZRL7 is a 14-bit, 125 MSPS TxDAC digital-to-analog converter, while the AD9760ARUZ50RL7 is a 10-bit, 125 MSPS TxDAC. Both are members of Analog Devices' TxDAC family and share the same 28-lead TSSOP package (RU-28) 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 AD9760ARUZ50RL7 pin-compatible?
Yes. Both devices are offered in the same 28-lead TSSOP (RU-28) package with the same pinout, which allows a common PCB footprint. However, because the resolution differs (14-bit vs 10-bit), designers must verify that the digital input interface and system performance requirements are satisfied before substituting one for the other.
What is the maximum update rate of these two DACs?
Both the AD9764ARUZRL7 and the AD9760ARUZ50RL7 are specified for a maximum update rate of 125 MSPS, making them suitable for high-speed signal synthesis and communications applications.
What is the resolution of each device?
The AD9764ARUZRL7 provides 14-bit resolution, offering finer quantization and lower quantization noise than the AD9760ARUZ50RL7, which provides 10-bit resolution. The higher resolution of the AD9764 makes it preferable for applications demanding greater dynamic range and lower distortion.
Do both parts operate from the same supply voltage?
Yes. Both the AD9764 and AD9760 are specified to operate from a single 3.0 V to 5.5 V analog supply, with a separate digital supply range of 2.7 V to 5.5 V, allowing flexible interfacing to digital logic.
What is the difference in power consumption between the two devices?
Both devices are designed for low power operation. The AD9764 typically consumes approximately 175 mW at 5 V, while the AD9760 typically consumes approximately 175 mW at 5 V as well; actual consumption depends on the update rate and supply voltage. Designers should consult the respective datasheets for exact power figures under specific operating conditions.
Can the AD9760ARUZ50RL7 be used as a drop-in replacement for the AD9764ARUZRL7?
Because the two devices share the same package and pinout, a physical drop-in is possible, but the AD9760ARUZ50RL7 offers only 10-bit resolution versus 14-bit for the AD9764ARUZRL7. A substitution is only acceptable if the system's dynamic range, SNR, and SFDR requirements can be met with 10-bit resolution; otherwise the AD9764ARUZRL7 should be retained.
What are the typical applications for these TxDAC converters?
Both the AD9764ARUZRL7 and AD9760ARUZ50RL7 are intended for high-speed, high-performance applications such as communications transmit channels, base stations, set-top boxes, digital radio, and instrumentation, where their 125 MSPS update rate and TxDAC architecture provide efficient signal synthesis.