Overview
The AD5663RBRMZ-3REEL7 is a member of the nanoDAC® family from Analog Devices Inc. This device is a low-power, dual 16-bit buffered voltage-out digital-to-analog converter (DAC) designed for high precision and reliability. It operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. The AD5663R features an on-chip reference with options for 1.25 V or 2.5 V full-scale output, allowing for flexibility in various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 16-bit | ||||
| Supply Voltage (VDD) | 2.7 | 5.5 | V | ||
| On-Chip Reference Voltage | 1.25 | 2.5 | V | Full-scale output | |
| Reference Temperature Coefficient | ±5 | ±15 | ppm/°C | MSOP package models | |
| Output Voltage Range | 0 | VDD | V | ||
| Output Voltage Settling Time | 4 | 7 | µs | ¼ to ¾ scale settling to ±2 LSB | |
| Power Consumption (Normal Mode) | 200 | 900 | µA | Internal reference on/off | |
| Power Consumption (All Power-Down Modes) | 0.2 | 1 | µA | ||
| Operating Temperature Range | -40 | 105 | °C | B grade |
Key Features
- Low power consumption, making it suitable for battery-operated equipment.
- Dual 16-bit buffered voltage-out DAC with on-chip reference.
- Operates from a single 2.7 V to 5.5 V supply.
- Guaranteed monotonic by design.
- On-chip precision output amplifier enabling rail-to-rail output swing.
- Versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
- Power-on reset circuit ensuring DAC output powers up to 0 V.
- Software-selectable output loads in power-down mode.
Applications
- Portable and battery-operated equipment due to low power consumption.
- Industrial control systems requiring high precision and reliability.
- Medical devices where accurate voltage output is critical.
- Aerospace and defense applications needing robust and reliable DACs.
- Automotive systems requiring high precision and low power consumption.
Q & A
- What is the resolution of the AD5663RBRMZ-3REEL7 DAC?
The AD5663RBRMZ-3REEL7 is a 16-bit DAC.
- What is the operating voltage range of the AD5663RBRMZ-3REEL7?
The device operates from a single 2.7 V to 5.5 V supply.
- What are the options for the on-chip reference voltage?
The on-chip reference voltage options are 1.25 V and 2.5 V.
- What is the temperature coefficient of the on-chip reference?
The temperature coefficient of the on-chip reference is ±5 ppm/°C to ±15 ppm/°C.
- How long does it take for the output voltage to settle?
The output voltage settling time is 4 µs to 7 µs for ¼ to ¾ scale settling to ±2 LSB.
- What is the power consumption in normal mode and power-down mode?
In normal mode, the power consumption is 200 µA to 900 µA. In power-down mode, it is 0.2 µA to 1 µA.
- What is the operating temperature range of the AD5663RBRMZ-3REEL7?
The operating temperature range is -40°C to 105°C (B grade).
- Is the AD5663RBRMZ-3REEL7 compatible with standard serial interfaces?
Yes, it is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the purpose of the power-on reset circuit?
The power-on reset circuit ensures the DAC output powers up to 0 V and remains there until a valid write takes place.
- Can the output loads be software-selectable in power-down mode?
Yes, the output loads can be software-selectable in power-down mode.
