AD5663BRMZ-REEL7

Overview

The AD5663BRMZ-REEL7 is a dual 16-bit buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family. It operates on a single 2.7 V to 5.5 V supply and features rail-to-rail output swing. The device guarantees monotonicity by design with a maximum relative accuracy of ±12 LSBs for the B grade. Key electrical parameters include a typical power consumption of 0.6 mW at 3 V, a maximum settling time of 7 μs, and a serial interface supporting clock rates up to 50 MHz. It incorporates hardware LDAC and CLR functions, per-channel power-down modes reducing current to 480 nA at 5 V, and a power-on reset circuit.

Feature Summary

• Dual 16-bit resolution with ±12 LSBs maximum relative accuracy (B Grade)
• Rail-to-rail output capability with 2 kΩ load stability
• Low power consumption: 250 μA typical at 5 V; 480 nA in power-down mode
• Versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards

Applications

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

Procurement Notes

Verify the specific suffix REEL7 indicates tape-and-reel packaging when sourcing. Confirm the B grade designation corresponds to the ±12 LSBs accuracy specification rather than the A grade's ±16 LSBs. Ensure the external reference voltage requirements align with the system design, as the part requires an external VREF input.

Selection Notes

Select this component for applications requiring high precision in a low-power environment. The B grade offers tighter accuracy specifications compared to the A grade. Consider the 10-lead MSOP or LFCSP_WD package options based on board space constraints. Verify that the external reference voltage source can meet the 200 μA reference current requirement at the maximum operating voltage.

Part Context

This part belongs to the AD5663R series, which includes dual 12-bit (AD5623R), 14-bit (AD5643R), and 16-bit (AD5663R) variants. All share similar pinouts and functionality but differ in resolution and accuracy grades. The AD5663 is specifically designed for applications needing 16-bit precision with guaranteed monotonic operation.

Replacement Considerations

Direct substitutes within the same family include the AD5663ARUZ (A grade, tube packaging) or AD5663BRMZ (B grade, tube packaging). For different resolutions, consider the AD5643R or AD5623R if lower bit depth is acceptable.