AD5664BCPZ-REEL7

Overview

The AD5664BCPZ-REEL7 is a quad, 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 with typical current consumption of 0.9 mA at 5 V and 1 μA in power-down mode. The device features rail-to-rail output swing, a maximum settling time of 7 μs, and relative accuracy of ±12 LSBs (B Grade). It utilizes a versatile 3-wire serial interface supporting clock rates up to 50 MHz and includes a power-on reset circuit ensuring outputs start at 0 V.

Feature Summary

• Quad 16-bit resolution with ±12 LSBs maximum relative accuracy (B Grade)
• Rail-to-rail output amplifier allowing 0 V to VDD output range
• Low power consumption: 2.25 mW at 5 V; 480 nA in power-down mode
• 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards

Applications

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

Procurement Notes

Verify the B grade designation for ±12 LSBs relative accuracy and confirm the REEL7 suffix indicates tape-and-reel packaging. Ensure the external reference voltage input (VREF) is properly decoupled and within the 0.75 VDD to VDD range. Check that the operating temperature range meets the -40°C to +105°C industrial specification required for the application.

Selection Notes

Select this component when four independent 16-bit DAC channels are required in a low-power environment. The AD5664 requires an external reference voltage; if an internal reference is preferred, consider the AD5664R variant. Ensure the load capacitance does not exceed 10 nF (with 2 kΩ load) or 2 nF (unloaded) to maintain stability without oscillation.

Part Context

This part belongs to the AD5624/AD5664 nanoDAC family. The AD5624 offers 12-bit resolution, while the AD5664 provides 16-bit resolution. Both share identical pinouts, power requirements, and interface protocols. The 'BCPZ' suffix denotes the B grade accuracy level and the LFCSP_WD package type.

Replacement Considerations

The AD5664R is a direct functional replacement featuring an integrated internal reference. For higher resolution needs, the AD5665 series offers 18-bit options. Lower resolution alternatives include the AD5624 (12-bit) or AD5644 (14-bit). All variants share the same 10-lead MSOP/LFCSP pinout and serial interface.