AD5322BRMZ-REEL7

Digital To Analog Converters Overview

The AD5322BRMZ-REEL7 is a dual 12-bit buffered voltage output digital-to-analog converter (DAC) from Analog Devices, housed in a 10-lead MSOP package. It operates on a single 2.5 V to 5.5 V supply with typical current consumption of 230 μA at 3 V and 300 μA at 5 V. The device features rail-to-rail output amplifiers with a slew rate of 0.7 V/μs and a settling time of 8 μs (typical). It utilizes a versatile 3-wire serial interface compatible with SPI, QSPI, Microwire, and DSP standards, supporting clock rates up to 30 MHz. The B-version guarantees ±8 LSB INL and ±1 LSB DNL.

Digital To Analog Converters Feature Summary

• Dual 12-bit resolution with rail-to-rail buffered voltage outputs
• Low power operation: 230 μA at 3 V, 300 μA at 5 V; power-down current as low as 50 nA at 3 V
• 3-wire serial interface compatible with standard SPI, QSPI, Microwire, and DSP protocols
• Power-on reset ensures DAC outputs initialize to 0 V

Digital To Analog Converters Applications

• Portable battery-powered instruments
• Digital gain and offset adjustment circuits
• Programmable voltage and current sources
• Programmable attenuators

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix REEL7 corresponds to tape-and-reel packaging when sourcing. Confirm that the B-version designation aligns with the required linearity specifications (±8 LSB INL). Ensure the 10-lead MSOP footprint matches the PCB layout requirements for surface-mount assembly.

Digital To Analog Converters Selection Notes

Select this component for applications requiring dual-channel precision with low power constraints. The B-version offers tighter linearity than the A-version but higher cost. Consider the external reference configuration options; the inputs can be buffered or unbuffered depending on the source impedance and required input voltage range relative to VDD.

Digital To Analog Converters Part Context

This part belongs to the AD5302/AD5312/AD5322 family of nanoDACs. The AD5322 specifically provides 12-bit resolution, distinguishing it from the 8-bit AD5302 and 10-bit AD5312. All variants share the same pinout and interface logic, allowing for potential design flexibility within the same package type.

Digital To Analog Converters Replacement Considerations

The AD5322ARMZ-REEL7 is an alternative version within the same family, offering different linearity specifications (±16 LSB INL vs. ±8 LSB INL for the B-version). Both share identical pinouts and electrical interfaces, facilitating direct pin-compatible substitution if the relaxed accuracy of the A-version is acceptable.