Overview
The AD5668BRUZ-1 from Analog Devices Inc. is a low-power, octal, 16-bit, buffered voltage-output digital-to-analog converter (DAC). This device operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. It features an on-chip reference with an internal gain of 2, providing a full-scale output range of either 2.5 V or 5 V depending on the reference configuration. The AD5668BRUZ-1 is available in a 16-lead TSSOP package and is known for its high precision and low power consumption, making it suitable for a variety of applications requiring accurate analog output.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 16 bits | ||
| Supply Voltage | 2.7 V to 5.5 V | V | |
| Reference Voltage | 1.25 V or 2.5 V | V | 5 ppm/°C |
| Full-Scale Output Range | 2.5 V or 5 V | V | Depending on reference configuration |
| Relative Accuracy | ±8 LSB | ||
| Differential Nonlinearity | ±1 LSB | Guaranteed monotonic by design | |
| Zero-Code Error | 6 mV to 19 mV | mV | All 0s loaded to DAC register |
| Power Consumption (Power-Down) | 400 nA at 5 V | nA | |
| Interface | 3-wire serial (SPI, QSPI, MICROWIRE, DSP) | Up to 50 MHz clock rate | |
| Package | 16-lead TSSOP |
Key Features
- Low power consumption with a power-down feature reducing current to 400 nA at 5 V.
- On-chip reference with an internal gain of 2, providing options for 1.25 V or 2.5 V references.
- Guaranteed monotonic by design, ensuring accurate and reliable output.
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating up to 50 MHz.
- Rail-to-rail output swing enabled by the on-chip precision output amplifier.
- Power-on reset circuit ensuring DAC output powers up to 0 V or midscale until a valid write takes place.
- Software-selectable output loads while in power-down mode for any or all DAC channels.
- Asynchronous CLR function to update all DACs to a user-programmable code (zero scale, midscale, or full scale).
Applications
The AD5668BRUZ-1 is suitable for various applications requiring high precision and low power consumption, such as:
- Industrial control systems
- Aerospace and defense (AD5668-EP supports AQEC standard)
- Medical devices
- Automotive systems
- Test and measurement equipment
Q & A
- What is the resolution of the AD5668BRUZ-1 DAC?
The AD5668BRUZ-1 has a resolution of 16 bits.
- What is the operating voltage range of the AD5668BRUZ-1?
The device operates from a single 2.7 V to 5.5 V supply.
- What are the available reference voltage options for the AD5668BRUZ-1?
The device offers 1.25 V and 2.5 V reference voltage options, each with a 5 ppm/°C temperature coefficient.
- What is the full-scale output range of the AD5668BRUZ-1?
The full-scale output range is either 2.5 V or 5 V, depending on the reference configuration.
- What is the power consumption of the AD5668BRUZ-1 in power-down mode?
The power consumption is reduced to 400 nA at 5 V in power-down mode.
- What type of interface does the AD5668BRUZ-1 use?
The device uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating up to 50 MHz.
- What is the package type of the AD5668BRUZ-1?
The device is available in a 16-lead TSSOP package.
- Does the AD5668BRUZ-1 have a power-on reset feature?
Yes, the device has a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale until a valid write takes place.
- Can the output loads of the AD5668BRUZ-1 be software-selectable in power-down mode?
Yes, the output loads can be software-selectable for any or all DAC channels while in power-down mode.
- What is the asynchronous CLR function in the AD5668BRUZ-1?
The asynchronous CLR function updates all DACs to a user-programmable code (zero scale, midscale, or full scale).
