Part A
AD9761ARSZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 7536 PCS
- Series
- Acquisition de données - convertisseur numérique - analogique (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9761ARSZ and AD9760ARU50RL7 are both dual-channel 10-bit CMOS DACs from Analog Devices with comparable resolution and update rates, making them a viable functional replacement candidate. However, the AD9761ARSZ is supplied in a 28-lead SSOP package while the AD9760ARU50RL7 uses a 28-lead TSSOP, so footprint and thermal layout must be validated before substitution. Designers should confirm supply voltage, reference configuration, and digital interface timing against the target board to ensure drop-in compatibility.
Resolution
High match
Channel Count
High match
Package Type
Validation required
Supply Voltage
Validation required
Parts at a glance
Part B
AD9760ARU50RL7
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 8350 PCS
- Package
- TSSOP-28
- Series
- Acquisition de données - convertisseur numérique - analogique (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 | AD9761ARSZ | AD9760ARU50RL7 | Why it matters |
|---|---|---|---|
| Resolution | 10 bit | 10 bit | Bit depth determines the quantization granularity and achievable dynamic range of the DAC output. |
| Number of DAC Channels | 2 | 1 | Dual-channel parts support I/Q or stereo signal paths, while a single-channel part suits one signal chain only. |
| Update Rate (Max) | 40 MSPS | 125 MSPS | Maximum sample rate bounds the signal bandwidth the DAC can synthesize in a given application. |
| Output Type | Current - Unbuffered | Current - Unbuffered | Current-output DACs require an external I/V stage, which affects analog front-end design and settling behavior. |
| Supply Voltage | 3 V to 5.5 V | 2.7 V to 5.5 V | Supply range determines compatibility with the system rail and allowable output swing headroom. |
| Package / Mounting | 28-SSOP | 28-TSSOP | Footprint and package style must match the PCB layout for a drop-in substitution. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Temperature range confirms suitability for industrial versus commercial environments. |
| Interface | Parallel | Parallel | Digital interface type must match the driving logic and timing of the host system. |
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 | AD9761ARSZ | AD9760ARU50RL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | TxDAC+® | TxDAC® |
| Part Status | Active | Obsolete |
| Number of Bits | 10 | 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 | 3V ~ 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 | AD9761 | - |
| Number of D / A Converters | 2 | - |
| INL / DNL (LSB) | ±0.7, ±0.5 | - |
| Mounting Type | Surface Mount | - |
| Packaging | Tube | - |
Frequently asked questions
What are the key differences between the AD9761ARSZ and AD9760ARU50RL7?
The AD9761ARSZ is a dual-channel 10-bit 40 MSPS TxDAC+ with integrated 2x interpolation filters, housed in a 28-lead SSOP. The AD9760ARU50RL7 is a single-channel 10-bit 125 MSPS TxDAC in a 28-lead TSSOP, supplied in tape-and-reel packaging. The AD9761ARSZ targets I/Q transmit paths requiring matched dual DACs, while the AD9760ARU50RL7 targets higher-speed single-channel applications.
Are the AD9761ARSZ and AD9760ARU50RL7 pin-compatible?
No. The AD9761ARSZ uses a 28-lead SSOP package and the AD9760ARU50RL7 uses a 28-lead TSSOP package. The two devices also differ in channel count and internal architecture, so their pin functions and PCB land patterns are not interchangeable.
What is the maximum update rate of each device?
The AD9761ARSZ is specified for a maximum update rate of 40 MSPS per DAC channel. The AD9760ARU50RL7 is specified for a maximum update rate of 125 MSPS.
How many DAC channels does each part provide?
The AD9761ARSZ integrates two matched 10-bit DACs for dual-channel (I/Q) transmit applications. The AD9760ARU50RL7 provides a single 10-bit DAC channel.
Do these parts include on-chip digital interpolation filters?
The AD9761ARSZ includes integrated 2x interpolation filters on each channel. The AD9760ARU50RL7 does not include on-chip interpolation filters; it is a straight 10-bit DAC that accepts data at the DAC update rate.
What is the resolution of both converters?
Both the AD9761ARSZ and the AD9760ARU50RL7 are 10-bit DACs.
What supply voltage do these DACs require?
Both devices operate from a single 3.0 V to 5.5 V analog supply, with a separate digital supply pin for interfacing to low-voltage logic.
Can the AD9760ARU50RL7 replace the AD9761ARSZ in an existing design?
No, not as a direct drop-in replacement. The AD9760ARU50RL7 is a single-channel device in a TSSOP package without interpolation filters, whereas the AD9761ARSZ is a dual-channel device in an SSOP package with 2x interpolation. A redesign of the DAC interface, channel architecture, and PCB footprint would be required.