Overview
The AD5648BRUZ-2, produced by Analog Devices Inc., is a low-power, octal, 14-bit, buffered voltage-output Digital-to-Analog Converter (DAC). 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 an internal gain of 2, providing a full-scale output range of either 2.5 V or 5 V depending on the reference configuration. The device is available in a 16-lead TSSOP package and is designed for applications requiring high precision and low power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 14 | 14 | 14 | Bits | |
| Relative Accuracy | ±2 | ±8 | LSB | See Figure 6 | |
| Differential Nonlinearity | ±0.5 | ±0.5 | LSB | Guaranteed monotonic by design | |
| Zero-Code Error | 1 | 9 | mV | All 0s loaded to DAC register | |
| Zero-Code Error Drift | ±2 | ±2 | μV/°C | ||
| Full-Scale Error | -0.2 | -1 | % FSR | ||
| Output Voltage Range | 0 | VDD | V | ||
| Supply Voltage | 2.7 | 5.5 | V | ||
| Power Consumption (Power-Down) | 400 | nA | At 5 V |
Key Features
- Octal, 14-bit DAC with buffered voltage output
- On-chip 1.25 V or 2.5 V reference with 5 ppm/°C temperature coefficient
- Single 2.7 V to 5.5 V supply operation
- Guaranteed monotonic by design
- Power-on reset to 0 V or midscale
- Power-down feature reducing current consumption to 400 nA at 5 V
- Software-selectable output loads in power-down mode
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating up to 50 MHz
- On-chip precision output amplifier enabling rail-to-rail output swing
- Available in 16-lead TSSOP package
Applications
- Industrial control systems
- Aerospace and defense systems
- Medical devices requiring high precision and low power consumption
- Automotive systems
- Test and measurement equipment
- Any application requiring precise voltage output control with low power consumption
Q & A
- What is the resolution of the AD5648BRUZ-2 DAC?
The AD5648BRUZ-2 has a resolution of 14 bits.
- What is the supply voltage range for the AD5648BRUZ-2?
The device operates from a single 2.7 V to 5.5 V supply.
- Does the AD5648BRUZ-2 have an on-chip reference?
Yes, the AD5648BRUZ-2 has an on-chip reference with an internal gain of 2, available in 1.25 V or 2.5 V configurations.
- What is the power consumption in power-down mode?
The device consumes typically 400 nA at 5 V in power-down mode.
- Is the AD5648BRUZ-2 guaranteed monotonic by design?
Yes, the AD5648BRUZ-2 is guaranteed monotonic by design.
- What type of serial interface does the AD5648BRUZ-2 use?
The device uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, operating up to 50 MHz.
- What is the output voltage range of the AD5648BRUZ-2?
The output voltage range is from 0 V to VDD.
- Does the AD5648BRUZ-2 have a power-on reset feature?
Yes, the device has a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale.
- Can the outputs of all DACs be updated simultaneously?
Yes, the outputs of all DACs can be updated simultaneously using the LDAC function.
- What is the package type of the AD5648BRUZ-2?
The AD5648BRUZ-2 is available in a 16-lead TSSOP package.
