AD5660CRM-3

Overview

The AD5660CRM-3 is a single-channel, 16-bit buffered voltage output digital-to-analog converter (DAC) from the nanoDAC family. It operates on a single 4.5 V to 5.5 V supply and features an internal 2.5 V reference with a 5 ppm/°C temperature coefficient, enabling a full-scale output range of 0 V to VDD. The device guarantees monotonicity by design and includes a power-on reset circuit that initializes the output to midscale upon power-up. It utilizes a versatile 3-wire serial interface compatible with standard SPI, QSPI, MICROWIRE, and DSP protocols, supporting clock rates up to 30 MHz.

Feature Summary

• 16-bit resolution with guaranteed monotonic operation
• Internal 2.5 V reference providing 0 V to VDD output swing
• Power-on reset to midscale for safe initialization
• Low power consumption: 2.5 mW active, 1 µW in power-down mode
• Rail-to-rail output amplifier with Schmitt-triggered inputs

Applications

• Process control systems
• Portable battery-powered instruments
• Programmable voltage and current sources
• Digital gain and offset adjustment circuits
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'CRM-3' against the manufacturer's official ordering guide to confirm package type and temperature grade. Ensure the system design accommodates the 4.5 V to 5.5 V supply requirement and the midscale power-on reset behavior. Confirm compatibility with the 3-wire serial interface timing specifications before integration.

Selection Notes

Select this component when a single-channel, high-resolution DAC with an integrated precision reference is required. The -3 suffix indicates a midscale power-on reset state, which differs from the zero-volt reset of the -1 and -2 variants. Ensure the application supports the 4.5 V minimum supply voltage and requires rail-to-rail output capability.

Part Context

The AD5660CRM-3 belongs to the nanoDAC family, which also includes the 12-bit AD5620 and 14-bit AD5640. These devices share pinouts and functional characteristics, allowing for design flexibility across different resolution requirements. The AD5660 specifically targets applications needing 16-bit accuracy with low power consumption in compact packages.

Replacement Considerations

The AD5660CRM-1 or AD5660CRM-2 are direct pin-compatible alternatives if a zero-volt power-on reset is preferred over midscale. For external reference designs, the AD5662 offers similar performance without an internal reference.