Part A
AD5761BRUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4963 PCS
- Package
- TSSOP-16
- Series
- Acquisição de dados - Convertedores digitais para analógicos (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5761RBRUZ and AD5761BRUZ are functionally compatible 16-bit voltage output DACs in identical 24-lead TSSOP packages with the same pinout and supply requirements; the AD5761RBRUZ integrates a precision reference while the AD5761BRUZ requires an external reference, so the AD5761RBRUZ can serve as a drop-in upgrade where the internal reference is acceptable, while substituting the AD5761BRUZ for the AD5761RBRUZ requires adding an external reference and validating reference accuracy and drift against the target application.
Resolution and DAC Architecture
High match
Package and Pinout
High match
Reference Configuration
Validation required
Supply and Interface
High match
Parts at a glance
Part B
AD5761RBRUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4377 PCS
- Package
- TSSOP-16
- Series
- Acquisição de dados - Convertedores digitais para analógicos (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 | AD5761RBRUZ | AD5761BRUZ | Why it matters |
|---|---|---|---|
| Integrated Reference | Yes (internal 2.5 V reference) | No (external reference required) | The R version includes an on-chip reference, simplifying design and reducing external component count; the non-R version needs an external reference, affecting board space and BOM. |
| Resolution | 16 bits | 16 bits | Both provide 16-bit DAC resolution, so precision and step size are equivalent for the same output range. |
| Number of DAC Channels | 1 | 1 | Both are single-channel DACs, so channel count is not a differentiator for substitutability. |
| Output Voltage Range | Configurable (e.g., 0 to 5 V, 0 to 10 V, ±5 V, ±10 V) | Configurable (e.g., 0 to 5 V, 0 to 10 V, ±5 V, ±10 V) | Identical programmable output ranges allow the same analog output span in either configuration. |
| Supply Voltage | Single 4.5 V to 30 V or dual ±4.5 V to ±15 V | Single 4.5 V to 30 V or dual ±4.5 V to ±15 V | Matching supply requirements mean the same power rails can be used for either part. |
| Interface | SPI (serial) | SPI (serial) | Both use the same SPI interface, so firmware and digital connections remain compatible. |
| Package | 16-lead TSSOP | 16-lead TSSOP | Identical package and pinout allow drop-in PCB compatibility. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Same industrial temperature range supports use in identical environments. |
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 | AD5761BRUZ | AD5761RBRUZ |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 16 | 16 |
| Number of D/A Converters | 1 | 1 |
| Settling Time | 9µs | 9µs |
| Output Type | Voltage - Buffered | Voltage - Buffered |
| Differential Output | No | No |
| Data Interface | SPI | SPI |
| Reference Type | External | External, Internal |
| Voltage - Supply, Analog | 4.5V ~ 30V, -16.5V | 4.5V ~ 30V, -16.5V |
| Voltage - Supply, Digital | 1.7V ~ 5.5V | 1.7V ~ 5.5V |
| INL / DNL(LSB) | ±2 (Max), ±1 (Max) | ±2 (Max), ±1 (Max) |
| Architecture | R-2R | R-2R |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
Frequently asked questions
What is the primary difference between the AD5761RBRUZ and the AD5761BRUZ?
The AD5761RBRUZ includes an integrated precision reference, while the AD5761BRUZ requires an external voltage reference. Both are single-channel, 16-bit, serial-input, voltage-output DACs in a 16-lead TSSOP package and are otherwise functionally and pin-compatible.
Are the AD5761RBRUZ and AD5761BRUZ pin-compatible?
Yes. Both devices are offered in the same 16-lead TSSOP (RU-16) package with identical pin assignments. The REFIN/REFOUT pin function differs: on the AD5761RBRUZ it provides the internal reference output, while on the AD5761BRUZ it accepts an external reference input.
What is the resolution and output range of these DACs?
Both the AD5761RBRUZ and AD5761BRUZ are 16-bit DACs with a specified INL of ±16 LSB maximum (B grade). They support software-selectable output ranges including 0 V to +5 V, 0 V to +10 V, 0 V to +20 V, −5 V to +5 V, −10 V to +10 V, and −20 V to +20 V, depending on the reference and supply configuration.
Can the AD5761BRUZ be used as a drop-in replacement for the AD5761RBRUZ?
Not directly. The AD5761RBRUZ has an internal reference, whereas the AD5761BRUZ requires an external reference connected to the REFIN/REFOUT pin. A replacement requires adding an external reference source and verifying the reference voltage and output range configuration against the datasheet.
What reference voltage does the AD5761RBRUZ provide internally?
The AD5761RBRUZ integrates a 2.5 V precision reference. This internal reference is used to derive the selectable output ranges and is available at the REFIN/REFOUT pin.
What supply voltages do the AD5761RBRUZ and AD5761BRUZ require?
Both devices operate from an analog supply (AVDD) of +4.5 V to +30 V and a digital supply (DVDD) of +2.7 V to +5.5 V. A negative analog supply (AVSS) of 0 V to −30 V is used when bipolar output ranges are required, per the manufacturer datasheet.
What serial interface do these DACs use?
Both the AD5761RBRUZ and AD5761BRUZ use a 3-wire SPI-compatible serial interface supporting clock rates up to 50 MHz, with separate SDIN, SCLK, and SYNC pins for daisy-chain and multi-device configurations.
What are the operating temperature ranges for these devices?
Both the AD5761RBRUZ and AD5761BRUZ are specified for operation over the −40 °C to +125 °C industrial temperature range, as stated in the manufacturer datasheet.