Overview
The AD5668ARUZ-2REEL7 is a low-power, octal, 16-bit, buffered voltage-output digital-to-analog converter (DAC) produced by Analog Devices Inc. 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 a precision of 5 ppm/°C and supports various output ranges depending on the reference configuration. The AD5668 is available in a 16-lead TSSOP package, making it suitable for a wide range of applications requiring high precision and low power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Resolution | 16 bits | ||||
| Supply Voltage (VDD) | 2.7 | 5.5 | V | ||
| Current Consumption (Normal Mode) | 1.0 | 1.5 | 1.8 | mA | Internal reference off/on, VDD = 2.7 V to 3.6 V |
| Current Consumption (Power-Down Mode) | 0.2 | 1 | µA | VDD = 2.7 V to 3.6 V | |
| Output Voltage Settling Time | 2.5 | 7 | µs | ¼ to ¾ scale settling to ±2 LSB | |
| Slew Rate | 1.2 | V/µs | |||
| Digital-to-Analog Glitch Impulse | 4 | 19 | nV-s | 1 LSB change around major carry | |
| Integral Nonlinearity (INL) | ±8 | ±16 | LSB | ||
| Differential Nonlinearity (DNL) | ±1 | LSB | Guaranteed monotonic by design | ||
| Zero-Code Error | 6 | 19 | mV | All 0s loaded to DAC register | |
| Gain Error | ±1 | % FSR | |||
| Gain Temperature Coefficient | ±2.5 | ppm of FSR/°C | |||
| Offset Error | ±6 | ±19 | mV | ||
| Package Type | 16-TSSOP (0.173, 4.40mm Width) | ||||
Key Features
- Low Power Consumption: The device operates with low current consumption, especially in power-down modes, reducing to 400 nA at 5 V.
- On-Chip Reference: Features an on-chip reference with a precision of 5 ppm/°C, and the option to use an external reference.
- High Precision Output: Guaranteed monotonic by design, ensuring high accuracy and linearity in output voltage.
- Flexible Output Configuration: Supports software-selectable output loads and asynchronous CLR to update all DACs to a user-programmable code (zero scale, midscale, or full scale).
- Fast Serial Interface: Utilizes a versatile 3-wire serial interface compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 50 MHz.
- Rail-to-Rail Output Amplifier: The on-chip precision output amplifier enables rail-to-rail output swing, enhancing the device's versatility in various applications.
Applications
- Industrial Automation: Suitable for control systems, process control, and automation where precise analog outputs are required.
- Medical Devices: Used in medical equipment that demands high precision and low power consumption, such as patient monitoring systems and diagnostic equipment.
- Aerospace and Defense: The AD5668-EP version supports defense and aerospace applications, adhering to AQEC standards.
- Automotive Systems: Applicable in automotive control systems, including engine control, transmission control, and other precision analog output requirements.
- Test and Measurement Equipment: Ideal for use in test and measurement instruments where high accuracy and stability are crucial.
Q & A
- What is the resolution of the AD5668ARUZ-2REEL7 DAC?
The AD5668ARUZ-2REEL7 has a resolution of 16 bits.
- What is the supply voltage range for the AD5668ARUZ-2REEL7?
The device operates from a single 2.7 V to 5.5 V supply.
- How much current does the AD5668ARUZ-2REEL7 consume in normal mode?
The current consumption in normal mode is typically 1.0 to 1.8 mA, depending on whether the internal reference is on or off.
- What is the settling time for the AD5668ARUZ-2REEL7?
The output voltage settling time is 2.5 to 7 µs for ¼ to ¾ scale settling to ±2 LSB.
- Does the AD5668ARUZ-2REEL7 have an on-chip reference?
Yes, the device features an on-chip reference with a precision of 5 ppm/°C.
- What is the package type of the AD5668ARUZ-2REEL7?
The device is available in a 16-lead TSSOP package.
- Is the AD5668ARUZ-2REEL7 guaranteed monotonic by design?
Yes, the device is guaranteed monotonic by design, ensuring high accuracy and linearity in output voltage.
- What is the maximum clock rate for the serial interface of the AD5668ARUZ-2REEL7?
The serial interface operates at clock rates up to 50 MHz.
- Does the AD5668ARUZ-2REEL7 support power-down modes?
Yes, the device has power-down modes that reduce current consumption to 400 nA at 5 V.
- Can the AD5668ARUZ-2REEL7 be used in aerospace and defense applications?
Yes, the AD5668-EP version supports defense and aerospace applications, adhering to AQEC standards.
