Analog Devices Inc. AD5791BRUZ

The AD5791BRUZ, produced by Analog Devices Inc., is a high-precision, 20-bit, unbuffered voltage-output digital-to-analog converter (DAC). This device operates from a bipolar supply of up to 33 V, making it suitable for a wide range of applications requiring high accuracy and stability. The AD5791 accepts both positive and negative reference inputs, with the positive reference ranging from 5 V to V_DD - 2.5 V and the negative reference ranging from V_SS + 2.5 V to 0 V. It is designed to offer excellent linearity and stability, with a relative accuracy specification of ±1 LSB and guaranteed monotonic operation with a ±1 LSB differential nonlinearity (DNL) maximum specification.

• High Accuracy and Linearity: The AD5791 offers ±1 LSB INL and ±1 LSB DNL, ensuring high precision in output voltage.
• Wide Power Supply Range: Operates from a bipolar supply of up to 33 V, providing flexibility in system design.
• Fast Settling Time: Settles in 1 μs, making it suitable for applications requiring quick response times.
• Low Noise: Features a noise spectral density of 7.5 nV/√Hz, contributing to its high signal integrity.
• Versatile Serial Interface: Compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 35 MHz.
• Power-On Reset and Output Clamp: Ensures the DAC output powers up to 0 V and remains in a known output impedance state until a valid write occurs.
• Military and Aerospace Support: The AD5791-EP version supports defense and aerospace applications, adhering to AQEC standards and offering a military temperature range of -55°C to +125°C.

• Precision Measurement and Instrumentation: Ideal for applications requiring high accuracy and stability, such as precision measurement instruments and analytical equipment.
• Data Acquisition Systems: Suitable for data acquisition systems that demand high resolution and low noise.
• Chemical Analysis and Medical Equipment: Used in chemical analysis instruments and medical equipment where precise voltage control is critical.
• DC Sources and Power Supplies: Can be used in the design of high-precision DC sources and power supplies.
• Aerospace and Defense: The AD5791-EP version is specifically designed for defense and aerospace applications, meeting stringent reliability and performance standards.

1. What is the resolution of the AD5791 DAC?

   The AD5791 is a 20-bit digital-to-analog converter.

2. What is the integral nonlinearity (INL) of the AD5791?

   The INL of the AD5791 is ±1 LSB.

3. What is the supply voltage range for the AD5791?

   The AD5791 operates from a bipolar supply of V_DD: 7.5 V to 16.5 V and V_SS: -16.5 V to -2.5 V.

4. What type of serial interface does the AD5791 use?

   The AD5791 uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating at clock rates up to 35 MHz.

5. What is the settling time of the AD5791?

   The settling time of the AD5791 is 1 μs.

6. Does the AD5791 have any special features for power-on reset?

   Yes, the AD5791 incorporates a power-on reset circuit that ensures the DAC output powers up to 0 V and remains in a known output impedance state until a valid write occurs.

7. Is the AD5791 suitable for aerospace and defense applications?

   Yes, the AD5791-EP version is designed to support defense and aerospace applications, adhering to AQEC standards and offering a military temperature range.

8. What is the noise spectral density of the AD5791?

   The noise spectral density of the AD5791 is 7.5 nV/√Hz.

9. What package type is the AD5791 available in?

   The AD5791 is available in a 20-Lead TSSOP package.

10. Can the AD5791 be used in high-precision measurement instruments?

    Yes, the AD5791 is ideal for applications requiring high accuracy and stability, such as precision measurement instruments.