Overview
The AD5644RBRMZ-5, produced by Analog Devices Inc., is a member of the nanoDAC family. It is a low-power, quad, 14-bit buffered voltage-out 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. The AD5644R features an on-chip reference, which can be either 1.25 V or 2.5 V with a 5 ppm/°C temperature coefficient, providing a full-scale output range of 2.5 V or 5 V, respectively.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 14 bits | ||||
| Supply Voltage (VDD) | 2.7 | 5.5 | V | ||
| Internal Reference Voltage | 1.25 / 2.5 | V | 5 ppm/°C temperature coefficient | ||
| Full-Scale Output Range | 2.5 / 5 | V | Depending on the reference voltage | ||
| Power Consumption (Normal Mode) | 0.45 | 0.9 | 1.2 | mA | Internal reference on/off |
| Power Consumption (All Power-Down Modes) | 0.48 | 1 | μA | ||
| Operating Temperature Range | -40 | 105 | °C | B grade | |
| Settling Time (¼ to ¾ scale) | 3.5 | 5 | μs | ±0.5 LSB | |
| Slew Rate | 1.8 | V/μs | |||
Key Features
- Low power consumption with a single 2.7 V to 5.5 V supply.
- On-chip reference with 5 ppm/°C temperature coefficient.
- Guaranteed monotonic by design.
- Power-on reset to zero scale.
- Per channel power-down capability.
- Serial interface up to 50 MHz.
- Available in 10-lead MSOP, 10-lead LFCSP_WD, and 12-ball WLCSP packages.
Applications
- Process controls.
- Data acquisition systems.
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
Q & A
- What is the resolution of the AD5644RBRMZ-5?
The AD5644RBRMZ-5 has a resolution of 14 bits.
- What is the operating voltage range of the AD5644RBRMZ-5?
The device operates from a single 2.7 V to 5.5 V supply.
- What is the temperature coefficient of the on-chip reference?
The on-chip reference has a temperature coefficient of 5 ppm/°C.
- What are the available package options for the AD5644RBRMZ-5?
The device is available in 10-lead MSOP, 10-lead LFCSP_WD, and 12-ball WLCSP packages.
- What is the power consumption of the AD5644RBRMZ-5 in normal mode?
The power consumption in normal mode is typically 0.9 mA with the internal reference on.
- What is the settling time of the AD5644RBRMZ-5?
The settling time from ¼ to ¾ scale is typically 3.5 to 5 μs.
- Does the AD5644RBRMZ-5 have a power-down feature?
Yes, the device has a per channel power-down capability.
- What is the maximum operating temperature of the AD5644RBRMZ-5?
The maximum operating temperature is 105°C for the B grade.
- What are some common applications of the AD5644RBRMZ-5?
Common applications include process controls, data acquisition systems, portable battery-powered instruments, and programmable voltage and current sources.
- What is the slew rate of the AD5644RBRMZ-5?
The slew rate is 1.8 V/μs.
