Overview
The AD5643RBRMZ-3, produced by Analog Devices Inc., is a member of the nanoDAC® family. It is a low-power, dual 14-bit buffered voltage-out digital-to-analog converter (DAC) designed for high precision and low power consumption. This device operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. The AD5643RBRMZ-3 features an on-chip 1.25 V, 5 ppm/°C reference, providing a full-scale output of 2.5 V. It is particularly suited for portable, battery-operated equipment due to its low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| DAC Type | Voltage Out |
| Data Input Format | Straight Binary |
| Interface | Serial, SPI |
| Operating Temperature Range | -40°C to 105°C |
| Power Consumption (typical) | 0.6 mW at 3 V, 1.25 mW at 5 V |
| On-Chip Reference | 1.25 V, 5 ppm/°C |
| Full-Scale Output | 2.5 V |
| Package | 10-lead MSOP |
| Power-Down Current | 480 nA at 5 V |
| Integral Nonlinearity (INL) | ±2 LSB |
| Differential Nonlinearity (DNL) | ±0.5 LSB |
Key Features
- Dual 14-bit DAC with on-chip 1.25 V or 2.5 V reference
- Low power consumption: typically 0.6 mW at 3 V and 1.25 mW at 5 V
- Guaranteed monotonic by design
- Operates from a single 2.7 V to 5.5 V supply
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards
- Rail-to-rail output swing enabled by on-chip precision output amplifier
- Power-on reset circuit ensuring DAC output powers up to 0 V
- Power-down feature reducing current consumption to 480 nA at 5 V
- Software-selectable output loads in power-down mode
Applications
The AD5643RBRMZ-3 is ideally suited for various applications requiring high precision and low power consumption, such as:
- Portable, battery-operated equipment
- Industrial control systems
- Aerospace and defense systems
- Medical devices
- Automotive systems
Q & A
- What is the resolution of the AD5643RBRMZ-3?
The AD5643RBRMZ-3 has a resolution of 14 bits.
- What is the operating voltage range of the AD5643RBRMZ-3?
The device operates from a single 2.7 V to 5.5 V supply.
- What type of interface does the AD5643RBRMZ-3 use?
The AD5643RBRMZ-3 uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.
- What is the power consumption of the AD5643RBRMZ-3?
The typical power consumption is 0.6 mW at 3 V and 1.25 mW at 5 V.
- Does the AD5643RBRMZ-3 have an on-chip reference?
Yes, the AD5643RBRMZ-3 has an on-chip 1.25 V or 2.5 V reference with 5 ppm/°C temperature coefficient.
- What is the full-scale output of the AD5643RBRMZ-3?
The full-scale output is 2.5 V for the AD5643RBRMZ-3 model.
- What is the package type of the AD5643RBRMZ-3?
The device is available in a 10-lead MSOP package.
- What is the power-down current of the AD5643RBRMZ-3?
The power-down current is 480 nA at 5 V.
- Is the AD5643RBRMZ-3 guaranteed monotonic?
Yes, the AD5643RBRMZ-3 is guaranteed monotonic by design.
- What is the operating temperature range of the AD5643RBRMZ-3?
The operating temperature range is -40°C to 105°C.
