Overview
The AD5663, produced by Analog Devices Inc., is a low power, dual, 16-bit buffered voltage-out Digital-to-Analog Converter (DAC) that operates from a single 2.7 V to 5.5 V supply. It is part of the nanoDAC® family and is guaranteed monotonic by design. This DAC is designed for low power consumption, making it suitable for portable, battery-operated equipment. The AD5663 features a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale and remains there until a valid write takes place. It also includes a power-down feature that significantly reduces current consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| VDD | 2.7 | 5.5 | V | Operating voltage range | |
| Resolution | 16 | Bits | Dual 16-bit DAC | ||
| Power Consumption (Normal Mode) | 1.25 | mW | At 5 V, excludes load current | ||
| Power Consumption (Power-Down Mode) | 2.4 | μW | At 5 V | ||
| Output Voltage Settling Time | 4 | 7 | μs | ¼ to ¾ scale settling to ±2 LSB | |
| Slew Rate | 1.8 | V/μs | |||
| Temperature Range | -40 | 105 | °C |
Key Features
- Dual 16-bit buffered voltage-out DAC with rail-to-rail output swing.
- Operates from a single 2.7 V to 5.5 V supply.
- Low power consumption: 1.25 mW at 5 V and 2.4 μW in power-down mode.
- Power-on reset circuit ensures DAC output powers up to 0 V or midscale.
- Power-down feature with software-selectable output loads.
- Versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 50 MHz.
- Guaranteed monotonic by design.
Applications
- Process control systems.
- Data acquisition systems.
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
Q & A
- What is the operating voltage range of the AD5663?
The AD5663 operates from a single 2.7 V to 5.5 V supply.
- What is the resolution of the AD5663 DAC?
The AD5663 is a dual 16-bit DAC.
- What is the power consumption of the AD5663 in normal mode?
The power consumption is 1.25 mW at 5 V.
- What is the power consumption of the AD5663 in power-down mode?
The power consumption is 2.4 μW at 5 V.
- What is the output voltage settling time of the AD5663?
The output voltage settling time is 4 to 7 μs for ¼ to ¾ scale settling to ±2 LSB.
- What is the slew rate of the AD5663?
The slew rate is 1.8 V/μs.
- What is the temperature range of the AD5663?
The temperature range is -40°C to +105°C.
- Does the AD5663 have a power-on reset feature?
Yes, the AD5663 has a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale.
- What type of serial interface does the AD5663 use?
The AD5663 uses a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- Is the AD5663 guaranteed monotonic by design?
Yes, the AD5663 is guaranteed monotonic by design.
