Overview
The AD5697RBRUZ, produced by Analog Devices Inc., is a low-power, dual, 12-bit buffered voltage output digital-to-analog converter (DAC) and a member of the nanoDAC+™ family. This device features a 2.5 V internal reference with a low drift of 2 ppm/°C and a gain select pin that allows for full-scale outputs of either 2.5 V or 5 V. It operates from a single 2.7 V to 5.5 V supply and is available in both 3 mm × 3 mm LFCSP and 16-lead TSSOP packages.
Key Specifications
| Parameter | Min | Typical | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | - | 12-bit | - | - | - |
| Internal Reference | - | 2.5 V, 2 ppm/°C | - | - | - |
| Full-Scale Output | - | 2.5 V or 5 V | - | - | Dependent on gain setting |
| Total Unadjusted Error (TUE) | - | - | ±0.1% of FSR | - | Maximum |
| Offset Error | - | - | ±1.5 mV | - | Maximum |
| Gain Error | - | - | ±0.1% of FSR | - | Maximum |
| Output Current Capability | - | - | ±5 mA | - | VDD ≥ 3 V |
| Power Supply Range | 2.7 V | - | 5.5 V | - | - |
| Operating Temperature Range | -40°C | - | +105°C | - | - |
| I2C Interface Clock Rate | - | - | 400 kHz | - | - |
Key Features
- Low drift 2.5 V internal reference: 2 ppm/°C typical.
- Tiny package options: 3 mm × 3 mm LFCSP and 16-lead TSSOP.
- High drive capability: 20 mA, 0.5 V from supply rails.
- User selectable gain of 1 or 2 via the GAIN pin).
- Reset to zero scale or midscale via the RSTSEL pin).
- 1.8 V logic compatibility).
- Low glitch: 0.5 nV-sec).
- 400 kHz I2C-compatible serial interface).
- Low power consumption: 3.3 mW at 3 V).
- Per channel power-down feature reducing current to 4 µA at 3 V).
Applications
- Base station power amplifiers).
- Process controls (programmable logic controller [PLC] I/O cards)).
- Industrial automation).
- Data acquisition systems).
Q & A
- What is the resolution of the AD5697RBRUZ DAC?
The AD5697RBRUZ has a resolution of 12 bits).
- What is the internal reference voltage and its drift?
The internal reference voltage is 2.5 V with a drift of 2 ppm/°C).
- What are the possible full-scale output voltages?
The full-scale output can be either 2.5 V or 5 V, depending on the gain setting).
- What is the total unadjusted error (TUE) of the AD5697RBRUZ?
The TUE is ±0.1% of the full-scale range (FSR)).
- What is the offset error of the AD5697RBRUZ?
The offset error is ±1.5 mV maximum).
- What is the gain error of the AD5697RBRUZ?
The gain error is ±0.1% of FSR maximum).
- What is the output current capability of the AD5697RBRUZ?
The output current capability is ±5 mA when VDD ≥ 3 V).
- What is the operating temperature range of the AD5697RBRUZ?
The operating temperature range is −40°C to +105°C).
- What is the clock rate of the I2C interface?
The I2C interface operates at clock rates up to 400 kHz).
- Does the AD5697RBRUZ have a power-down feature?
Yes, the AD5697RBRUZ has a per channel power-down feature that reduces current consumption to 4 µA at 3 V).
