Overview
The AD5676ARUZ is a low power, octal, 16-bit buffered voltage output digital-to-analog converter (DAC) produced by Analog Devices Inc. This device is part of the nanoDAC+ family and features a gain select pin, allowing for a full-scale output of VREF (gain = 1) or 2 × VREF (gain = 2). The AD5676 operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. It is available in 20-lead TSSOP and LFCSP packages, ensuring versatility in various applications.
Key Specifications
| Parameter | Unit | Min | Typ | Max | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | Bits | 16 | - | - | - |
| Relative Accuracy (INL) | LSB | ±1.8 | - | ±3 | Gain = 1, TSSOP and LFCSP |
| Total Unadjusted Error (TUE) | % of FSR | - | - | ±0.14% | - |
| Offset Error | mV | - | - | ±1.5 | - |
| Gain Error | % of FSR | - | - | ±0.06% | - |
| Power Supply Range | V | 2.7 | - | 5.5 | - |
| Operating Temperature Range | °C | -40 | - | 125 | - |
| Logic Supply Range | V | 1.62 | - | 5.5 | - |
| SPI Clock Rate | MHz | - | - | 50 | - |
| Power-Up Time | µs | - | - | 2.5 | VDD = 5 V |
Key Features
- High Performance: High relative accuracy (INL) and low total unadjusted error (TUE).
- User Selectable Gain: Gain select pin allowing for full-scale output of VREF (gain = 1) or 2 × VREF (gain = 2).
- Wide Operating Ranges: Operates from a single 2.7 V to 5.5 V supply and has an operating temperature range of -40°C to +125°C.
- Easy Implementation: 1.8 V logic compatibility and a versatile SPI interface with readback or daisy chain capability up to 50 MHz.
- Power-On Reset and Power-Down Mode: Internal power-on reset circuit and RSTSEL pin ensure outputs power up to zero scale or midscale. Per channel power-down mode reduces current consumption to 1 µA typical.
- Package Options: Available in 20-lead TSSOP, LFCSP, and 16-ball WLCSP packages.
Applications
- Optical Transceivers: Suitable for precision voltage output in optical communication systems.
- Base Station Power Amplifiers: Used in base station equipment for precise voltage control.
- Process Control (PLC Input/Output Cards): Ideal for industrial process control applications requiring accurate voltage outputs.
- Industrial Automation: Employed in various industrial automation systems for precise voltage control.
- Data Acquisition Systems: Used in data acquisition systems that require high accuracy and reliability.
Q & A
- What is the resolution of the AD5676ARUZ DAC?
The AD5676ARUZ has a resolution of 16 bits.
- What is the operating voltage range of the AD5676ARUZ?
The device operates from a single 2.7 V to 5.5 V supply.
- What are the gain options for the AD5676ARUZ?
The AD5676ARUZ has user selectable gain of 1 or 2, allowing for full-scale output of VREF or 2 × VREF.
- What is the maximum SPI clock rate for the AD5676ARUZ?
The SPI interface operates at clock rates up to 50 MHz.
- What are the package options available for the AD5676ARUZ?
The device is available in 20-lead TSSOP, LFCSP, and 16-ball WLCSP packages.
- How does the power-on reset circuit work in the AD5676ARUZ?
The internal power-on reset circuit and the RSTSEL pin ensure that the output DACs power up to zero scale or midscale and remain there until a valid write takes place.
- What is the current consumption in power-down mode?
The current consumption is reduced to 1 µA typical in power-down mode.
- What is the operating temperature range of the AD5676ARUZ?
The device operates over a temperature range of -40°C to +125°C.
- Is the AD5676ARUZ guaranteed monotonic by design?
Yes, the AD5676ARUZ is guaranteed monotonic by design.
- What are some typical applications of the AD5676ARUZ?
Typical applications include optical transceivers, base station power amplifiers, process control, industrial automation, and data acquisition systems.
