Overview
The AD5628BRUZ-2REEL7, produced by Analog Devices Inc., is a low-power, octal, 12-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 flexibility in output voltage ranges. The AD5628BRUZ-2REEL7 is packaged in a 16-lead TSSOP and is suitable for a wide range of applications requiring precise and efficient analog output control.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 12 | 12 | 12 | Bits | |
| Relative Accuracy | ±0.5 | ±2 | LSB | ||
| Differential Nonlinearity | ±0.25 | ±0.25 | LSB | Guaranteed monotonic by design | |
| Output Voltage Range | 0 | VDD | V | ||
| Power Supply Voltage (VDD) | 2.7 | 5.5 | V | ||
| Current Consumption (Normal Mode) | 1.2 | 1.7 | 2.6 | mA | Internal reference on/off, VDD = 2.7 V to 3.6 V |
| Current Consumption (Power-Down Mode) | 0.2 | 1 | µA | VDD = 2.7 V to 3.6 V | |
| Output Voltage Settling Time | 2.5 | 7 | µs | ¼ to ¾ scale settling to ±2 LSB | |
| Slew Rate | 1.2 | V/µs |
Key Features
- Octal, 12-bit DAC: Provides eight independent DAC channels with 12-bit resolution.
- On-chip Reference: Features an on-chip reference with an internal gain of 2, available in 1.25 V and 2.5 V options with 5 ppm/°C temperature coefficient.
- Power-on Reset and Power-down Capability: Ensures DAC output powers up to 0 V or midscale and reduces current consumption to 400 nA in power-down mode.
- Versatile Serial Interface: Supports clock rates up to 50 MHz and is compatible with SPI, QSPI, MICROWIRE, and DSP interface standards.
- Rail-to-Rail Output Swing: Enabled by the on-chip precision output amplifier.
- Simultaneous Update and Asynchronous CLR: Allows updating all DACs simultaneously and asynchronously to a user-programmable code.
Applications
The AD5628BRUZ-2REEL7 is suitable for various applications requiring precise and efficient analog output control, such as:
- Industrial Control Systems: For precise control of analog outputs in industrial automation.
- Medical Devices: In medical equipment that requires accurate and stable analog signals.
- Aerospace and Defense: For applications needing high reliability and precision in analog output.
- Automotive Systems: In automotive control systems that demand robust and accurate analog control.
- Test and Measurement Equipment: For generating precise analog signals in test and measurement applications.
Q & A
- What is the resolution of the AD5628BRUZ-2REEL7 DAC?
The AD5628BRUZ-2REEL7 has a 12-bit resolution.
- What is the operating voltage range of the AD5628BRUZ-2REEL7?
The device operates from a single 2.7 V to 5.5 V supply.
- What types of serial interfaces does the AD5628BRUZ-2REEL7 support?
The device supports SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the power consumption in normal mode and power-down mode?
In normal mode, the current consumption is typically 1.7 mA (internal reference on), and in power-down mode, it is typically 400 nA at 5 V.
- How does the power-on reset function work?
The DAC output powers up to 0 V or midscale and remains at this level until a valid write takes place.
- Can the outputs of all DACs be updated simultaneously?
- What is the temperature range for the AD5628BRUZ-2REEL7?
The device operates over a temperature range of −40°C to +105°C.
- What is the output voltage range of the AD5628BRUZ-2REEL7?
The output voltage range is from 0 V to VDD, depending on the reference used.
- Does the AD5628BRUZ-2REEL7 have an on-chip reference?
- What is the slew rate of the AD5628BRUZ-2REEL7?
The slew rate is 1.2 V/µs.
