AD5664BRMZ Equivalent & Substitute Parts

Part Overview

The AD5664BRMZ is a 16-bit digital-to-analog converter (DAC) featuring four independent output channels with buffered voltage outputs. Manufactured by Analog Devices Inc., this component operates across a wide supply voltage range (2.7V to 5.5V) and supports both SPI and DSP data interfaces. The device is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent functional performance can be achieved through alternative Analog Devices nanoDAC® series components that maintain core electrical specifications while potentially offering enhanced features or different packaging configurations.

Substiute Parts

AD5664BRMZ

Analog Devices Inc.In Stock: 1901AD5664BRMZ Datasheet

Current PartRFQ

AD5686RARUZ

Analog Devices Inc.In Stock: 1932AD5686RARUZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AD5664BRMZ is determined by the following critical parameters:

• Resolution: 16-bit conversion capability
• Channel Count: Four independent D/A converters
• Output Configuration: Buffered voltage output
• Interface Protocol: SPI and DSP compatibility
• Supply Voltage Range: Analog and digital supply compatibility within 2.7V to 5.5V envelope
• Temperature Range: Full -40°C to 105°C operating specification
• Compliance: RoHS3 and REACH compliance status
• Mounting: Surface mount technology

The AD5686RARUZ qualifies as a substitute part based on matching these core functional and electrical parameters, while offering enhanced specifications in certain areas such as improved INL/DNL performance and internal reference option.

Parameter Comparison

Engineering Selection Recommendations

Both the AD5664BRMZ and AD5686RARUZ maintain Active product status with full RoHS3 compliance and REACH unaffected classification, ensuring long-term availability and regulatory compliance for production applications.

The AD5686RARUZ offers improved linearity specifications (INL/DNL of ±2, ±1 LSB versus ±6, ±1 LSB) and extended digital supply voltage range (1.8V minimum versus 2.7V minimum), making it suitable for applications requiring lower digital supply voltages or tighter accuracy tolerances. The AD5686RARUZ also provides an internal reference option in addition to external reference capability.

Package differences must be evaluated based on PCB layout constraints: the AD5664BRMZ uses a 10-pin package (3.00mm width), while the AD5686RARUZ uses a 16-pin package (4.40mm width). Settling time differs marginally (7µs versus 8µs), which is negligible for most applications but should be verified for time-critical signal processing requirements.

Frequently Asked Questions (FAQ)

Q: Can the AD5686RARUZ directly replace the AD5664BRMZ in existing designs?

A: Direct replacement requires PCB layout modification due to different package footprints (10-MSOP versus 16-TSSOP). Electrical compatibility is maintained for applications using external references and digital supply voltages of 2.7V or higher. Verify settling time requirements for your specific application.

Q: What are the key differences in supply voltage specifications?

A: The AD5686RARUZ supports digital supply voltages as low as 1.8V, compared to 2.7V minimum for the AD5664BRMZ. Both devices maintain identical analog supply ranges (2.7V to 5.5V). This difference is significant only for applications requiring sub-2.7V digital logic levels.

Q: How do the linearity specifications compare?

A: The AD5686RARUZ provides superior INL/DNL performance (±2, ±1 LSB maximum) compared to the AD5664BRMZ (±6, ±1 LSB maximum). This 3-bit improvement in integral nonlinearity is relevant for precision measurement and audio applications requiring lower distortion.

Q: Are both parts suitable for the same operating temperature range?

A: Yes, both devices operate across the identical temperature range of -40°C to 105°C, ensuring compatibility for industrial and extended-temperature applications.

Q: What is the significance of the internal reference option in the AD5686RARUZ?

A: The AD5686RARUZ includes an internal reference capability in addition to external reference support, providing design flexibility. The AD5664BRMZ requires external reference only. This feature reduces component count in applications where internal reference accuracy is acceptable.

Q: How do settling times affect system performance?

A: The AD5664BRMZ settles in 7µs while the AD5686RARUZ requires 8µs. For applications with update rates exceeding 125 kHz, verify that the 1µs difference does not impact system timing requirements.