AD5761RBRUZ

Overview

The AD5761RBRUZ is a single-channel, 16-bit serial input voltage output digital-to-analog converter (DAC) from Analog Devices. It operates from single supply voltages of +4.75 V to +30 V or dual supplies ranging from −16.5 V to 0 V for VSS and +4.75 V to +16.5 V for VDD. The device features an integrated low-drift 2.5 V reference with ±2 ppm/°C typical drift, offering eight software-programmable output ranges including unipolar and bipolar options. Key performance metrics include a maximum integral nonlinearity (INL) of ±2 LSB, guaranteed monotonicity within ±1 LSB DNL, and a typical settling time of 7.5 μs. It utilizes a DSP- and microcontroller-compatible serial interface operating at clock rates up to 50 MHz.

Feature Summary

• Integrated low-drift 2.5 V reference with ±2 ppm/°C typical temperature coefficient
• Eight software-programmable output ranges: 0 V to +5 V, +10 V, +16 V, +20 V, ±3 V, ±5 V, ±10 V, and −2.5 V to +7.5 V
• 16-bit resolution with ±2 LSB maximum INL and guaranteed monotonicity (±1 LSB max DNL)
• Asynchronous updating via LDAC and asynchronous RESET to zero scale/midscale

Applications

• Industrial automation
• Instrumentation and data acquisition systems
• Open-/closed-loop servo control and process control
• Programmable logic controllers

Procurement Notes

Verify the package type matches the required PCB footprint, as the AD5761R series is available in both 16-lead TSSOP and 3 mm × 3 mm LFCSP packages. Confirm whether the specific application requires the internal reference (AD5761R) or if an external reference is preferred, as this distinguishes it from the AD5761 variant. Ensure power supply rails align with the specified operational limits for the selected output range.

Selection Notes

Select the AD5761RBRUZ when a single-channel, high-precision 16-bit DAC with integrated reference is required. The choice between unipolar and bipolar operation depends on the RA bits in the control register. For applications requiring lower resolution but similar form factors, consider the 12-bit AD5721R. Verify that the load conditions (resistive/capacitive) remain within the stability specifications provided in the datasheet.

Part Context

The AD5761RBRUZ belongs to the AD5761R/AD5721R family of multiple-range, bipolar/unipolar voltage output DACs. This family integrates the DAC core, output amplifier, and reference buffer into a universal solution, eliminating the need for external gain-setting resistors. The 'BRU' suffix indicates the 16-lead TSSOP package variant, distinguishing it from the LFCSP package option.

Replacement Considerations

The AD5761RBCPZ-RL7 serves as a package alternative within the same functional family, utilizing a 16-lead LFCSP format instead of the TSSOP. Both parts share identical electrical characteristics and pinouts where applicable, facilitating design upgrades for thermal or space constraints without altering circuit functionality.