AD5760BCPZ

Overview

The AD5760BCPZ is a true 16-bit, unbuffered voltage output digital-to-analog converter (DAC) from Analog Devices. It operates from a bipolar supply of up to ±16.5 V and accepts reference inputs ranging from 5 V to VDD − 2.5 V for the positive side and VSS + 2.5 V to 0 V for the negative side. The device guarantees monotonic operation with a maximum differential nonlinearity (DNL) of ±0.5 LSB and an integral nonlinearity (INL) of ±0.5 LSB for the B grade. Key electrical characteristics include an output noise spectral density of 8 nV/√Hz, a settling time of 2.5 µs for a 10 V step, and a gain error temperature coefficient of ±0.018 ppm/°C.

Feature Summary

• True 16-bit resolution with ±0.5 LSB INL and guaranteed monotonicity
• Low noise performance with 8 nV/√Hz output noise spectral density
• Wide bipolar power supply range supporting up to ±16.5 V
• 35 MHz Schmitt-triggered serial interface compatible with SPI, QSPI, and MICROWIRE

Applications

• Medical instrumentation
• Test and measurement equipment
• Industrial control systems
• Scientific and aerospace instrumentation
• Data acquisition systems

Procurement Notes

Verify the specific grade suffix when ordering; the 'B' in AD5760BCPZ denotes the B-grade version which offers tighter linearity specifications compared to the A-grade variant. Confirm package availability as the component utilizes a 4 mm × 5 mm LFCSP footprint. Ensure that external components such as output buffers and reference voltages match the datasheet recommendations for optimal performance within the specified operating temperature range of −40°C to +125°C.

Selection Notes

Select the AD5760BCPZ for applications requiring high precision and stability over a wide temperature range. The B-grade specification ensures ±0.5 LSB INL, making it suitable for critical measurement tasks. Consider the unbuffered output nature of the device; if low output impedance is required, integrate a companion operational amplifier such as the ADA4898-1 or AD8675. Verify that the system's reference voltage sources fall within the acceptable input ranges defined in the specifications table.

Part Context

The AD5760 belongs to Analog Devices' family of high-performance DACs designed for precision applications. It shares architectural similarities with higher-resolution models like the AD5780 (18-bit) and AD5790 (20-bit), but offers a cost-effective solution for 16-bit requirements. The device integrates internal precision reference buffers and a power-on reset circuit to ensure a known output state upon initialization, distinguishing it from simpler DACs that require extensive external logic for safe startup.

Replacement Considerations

For direct pin-compatible replacements within the same accuracy class, consider the AD5760ACPZ, noting that the A-grade has wider INL tolerances (±2 LSB). For higher resolution needs, the AD5781 (18-bit, 0.5 LSB INL) is available but requires different packaging and interface considerations. Lower resolution alternatives like the AD5541A are not pin-compatible and require significant schematic redesign.