Overview
The AD5648BRUZ-2REEL7 is a 14-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This device is part of the AD5648 series, known for its high precision and versatility in various applications. It operates using a 3-wire serial interface compatible with standard SPI and QSPI protocols, allowing for clock rates up to 50 MHz. The DAC features an on-chip reference with options for internal or external reference sources, making it suitable for a wide range of analog output requirements.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 14 | Bits | |
| Relative Accuracy | ±2 to ±8 LSB | See Figure 8 | |
| Differential Nonlinearity | ±0.5 LSB | Guaranteed monotonic by design | |
| Zero-Code Error | 6 to 19 mV | All 0s loaded to DAC register | |
| Zero-Code Error Drift | ±2 µV/°C | ||
| Full-Scale Error | -0.2 to -1 % FSR | ||
| VDD | 2.7 to 3.6 V | All digital inputs at 0 or VDD, DAC active, excludes load current | |
| IDD (Normal Mode) | 1.0 to 2.25 mA | Internal reference on/off | |
| IDD (All Power-Down Modes) | 0.2 to 1 µA | All eight DACs powered down | |
| Output Voltage Settling Time | 2.5 to 7 µs | ¼ to ¾ scale settling to ±2 LSB | |
| Slew Rate | 1.2 V/µs |
Key Features
- High Resolution: The AD5648BRUZ-2REEL7 offers a 14-bit resolution, providing high precision in analog output.
- Flexible Reference Options: The device includes an on-chip reference with internal gains of 1 or 2, and the ability to use an external reference.
- Low Power Consumption: It features low current consumption in both normal and power-down modes, making it energy-efficient.
- Fast Interface: The 3-wire serial interface supports clock rates up to 50 MHz and is compatible with SPI and QSPI protocols.
- Power-On Reset and Power-Down: The device includes a power-on reset circuit and a power-down feature that reduces current consumption to 400 nA at 5 V.
- Rail-to-Rail Output Amplifiers: The output amplifiers have rail-to-rail operation, ensuring full-scale output range utilization.
Applications
The AD5648BRUZ-2REEL7 is suitable for various applications requiring high precision and low power consumption, such as:
- Industrial Automation: For precise control and monitoring in industrial systems.
- Medical Devices: In medical equipment where accuracy and reliability are crucial.
- Aerospace and Defense: For applications requiring high precision and robust performance.
- Test and Measurement Equipment: For generating precise analog signals in testing and measurement instruments.
Q & A
- What is the resolution of the AD5648BRUZ-2REEL7?
The AD5648BRUZ-2REEL7 has a resolution of 14 bits. - What is the operating voltage range of the AD5648BRUZ-2REEL7?
The device operates from a supply voltage of 2.7 V to 5.5 V. - What type of serial interface does the AD5648BRUZ-2REEL7 use?
The device uses a 3-wire serial interface compatible with SPI and QSPI protocols. - What is the maximum clock rate supported by the AD5648BRUZ-2REEL7?
The device supports clock rates up to 50 MHz. - Does the AD5648BRUZ-2REEL7 have an on-chip reference?
Yes, the device includes an on-chip reference with options for internal or external reference sources. - What is the power consumption in power-down mode?
The current consumption in power-down mode is 0.2 to 1 µA. - What is the output voltage settling time of the AD5648BRUZ-2REEL7?
The output voltage settling time is 2.5 to 7 µs for ¼ to ¾ scale settling to ±2 LSB. - Is the AD5648BRUZ-2REEL7 guaranteed to be monotonic?
Yes, the device is guaranteed to be monotonic by design. - What is the slew rate of the AD5648BRUZ-2REEL7?
The slew rate is 1.2 V/µs. - What type of output amplifiers does the AD5648BRUZ-2REEL7 have?
The device has rail-to-rail output amplifiers.
