DAC7617U/1K

Digital To Analog Converters Overview

The DAC7617U/1K is a quad, serial input, 12-bit voltage output digital-to-analog converter manufactured by Texas Instruments. It operates from a single +3V supply and features guaranteed 12-bit monotonicity over the -40°C to +85°C temperature range. The device utilizes an R-2R ladder architecture with double-buffered data inputs for simultaneous updates. Key electrical parameters include a settling time of 10 μs to 0.012%, linearity error of ±2 LSB, and differential linearity error of ±1 LSB. Power dissipation is typically 3 mW at VDD = +3V.

Digital To Analog Converters Feature Summary

• Double-buffered data inputs allow for simultaneous update of all four DAC outputs without disturbing analog signals during programming.
• Asynchronous reset function clears all registers to either mid-scale or zero-scale, selectable via the RESETSEL pin.
• Single-supply operation simplifies system design by requiring only a +3V power source.
• CMOS logic interface ensures compatibility with standard digital control systems.

Digital To Analog Converters Applications

• Process control systems
• Automatic test equipment (ATE) pin electronics
• Closed-loop servo-control applications
• Motor control circuits
• Data acquisition systems

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix '/1K' indicates tape and reel packaging containing 1000 devices per reel. Confirm the 'U' suffix corresponds to the SO-16 package variant rather than the SSOP-20 option. Ensure the required linearity specification matches the standard DAC7617U grade, as higher precision variants exist within the family.

Digital To Analog Converters Selection Notes

Select this component when a quad-channel DAC with low power consumption and single-supply operation is required. Verify that the 12-bit resolution and 10 μs settling time meet the application's speed and accuracy requirements. Consider the SO-16 package dimensions if board space is constrained compared to the SSOP-20 alternative.

Digital To Analog Converters Part Context

The DAC7617U/1K belongs to the DAC7617 family of quad 12-bit voltage output DACs. It shares architectural similarities with the DAC7615 and DAC7616 but differs in supply voltage requirements, operating specifically on a single +3V rail unlike the 5V variants. This places it in the low-voltage precision data converter category suitable for battery-powered or low-power industrial applications.

Digital To Analog Converters Replacement Considerations

DAC7617E/1K: Identical electrical specifications but housed in an SSOP-20 package instead of SO-16.

Digital To Analog Converters FAQ

How is the asynchronous reset state determined?

The reset state is determined by the logic level on the RESETSEL pin. A LOW level sets registers to zero-scale (000H), while a HIGH level sets them to mid-scale (800H).

What is the maximum load capacitance allowed?

The device can drive a load capacitance of up to 100 pF without oscillation.

Can CS and CLK be used interchangeably?

Yes, the CS and CLK inputs are combined with an OR gate internally and are completely interchangeable for shifting data into the serial register.