AD5325BRMZ

Digital To Analog Converters Overview

The AD5325BRMZ is a quad 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 600 μA at 5 V and 500 μA at 3 V. The device features a 2-wire I²C-compatible serial interface supporting clock rates up to 400 kHz. Key specifications include a maximum integral nonlinearity (INL) of ±10 LSB for the B version, a settling time of 8 μs typ, and rail-to-rail output swing capability. It includes power-on reset to 0 V, three power-down modes reducing current to 200 nA at 5 V, and simultaneous update functionality via the LDAC pin.

Digital To Analog Converters Feature Summary

• Quad 12-bit resolution with ±10 LSB max INL (B version)
• 2-wire I²C/SMBus compatible serial interface
• Rail-to-rail buffered voltage outputs with 0.7 V/μs slew rate
• Low power: 500 μA @ 3 V, 600 μA @ 5 V; Power-down < 200 nA

Digital To Analog Converters Applications

• Portable battery-powered instruments
• Programmable voltage and current sources
• Digital gain and offset adjustment circuits
• Industrial process control systems

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest datasheet to confirm package type and tape/reel configuration. Ensure compatibility with system voltage levels, as the interface is SMBus compatible only when VDD is below 3.6 V. Confirm that external pull-up resistors are selected appropriately for the SDA and SCL lines based on bus capacitance requirements.

Digital To Analog Converters Selection Notes

Select the AD5325BRMZ when 12-bit accuracy is required alongside low power consumption in a compact MSOP footprint. The B version offers tighter linearity specifications (±10 LSB INL) compared to the A version. Consider the external reference requirement, as the REF IN pin is unbuffered and requires an external source or buffer for optimal performance. Ensure the load conditions do not exceed the amplifier's drive capability of 2 kΩ to GND/VDD with 500 pF capacitive load.

Digital To Analog Converters Part Context

The AD5325BRMZ belongs to the AD5305/AD5315/AD5325 family of nanoDACs. While sharing the same physical package and interface, it differs from the AD5305 (8-bit) and AD5315 (10-bit) by providing higher 12-bit resolution. All variants in this series share similar power characteristics, pinouts, and functional blocks, allowing for design flexibility across different resolution requirements within the same hardware platform.

Digital To Analog Converters Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.