Overview
The AD5643RBRMZ-5REEL7, 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 reliability. This device operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. The AD5643RBRMZ-5 features an on-chip reference with a 2.5 V, 5 ppm/°C temperature coefficient, providing a full-scale output of 5 V. The on-chip reference can be disabled at power-up, allowing the use of an external reference if needed.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage | 2.7 | 5.5 | V | ||
| Reference Voltage | 2.5 | V | On-chip reference, 5 ppm/°C | ||
| Output Voltage Range | 0 | VDD | V | ||
| DC Output Impedance | 0.5 | Ω | |||
| Short Circuit Current | 30 | mA | VDD = 3 V | ||
| Power-Up Time | 4 | μs | Coming out of power-down mode; VDD = 3 V | ||
| Output Voltage Settling Time | 3.5 | 5 | μs | ¼ to ¾ scale settling to ±0.5 LSB | |
| Slew Rate | 1.8 | V/μs | |||
| Reference Input Impedance | 26 | kΩ |
Key Features
- Low Power Consumption: Operates from a single 2.7 V to 5.5 V supply, making it suitable for power-sensitive applications.
- High Precision: Dual 14-bit DAC with guaranteed monotonicity by design.
- On-Chip Reference: Features a 2.5 V on-chip reference with a 5 ppm/°C temperature coefficient.
- Flexible Reference Option: Allows the use of an external reference if needed.
- Fast Settling Time: Output voltage settling time of 3.5 μs to 5 μs for ¼ to ¾ scale settling to ±0.5 LSB.
- High-Speed Interface: Data can be transferred at rates up to 50 MHz through a 24-bit shift register.
Applications
- Industrial Automation: Suitable for control systems and data acquisition in industrial environments.
- Medical Devices: Used in medical equipment requiring high precision and reliability.
- Aerospace and Defense: Applicable in various military and aerospace systems due to its robust performance and low power consumption.
- Automotive Systems: Can be used in automotive control systems, sensors, and other automotive electronics.
- Test and Measurement Equipment: Ideal for precision measurement and calibration in test equipment.
Q & A
- What is the operating voltage range of the AD5643RBRMZ-5?
The AD5643RBRMZ-5 operates from a single 2.7 V to 5.5 V supply.
- What is the resolution of the AD5643RBRMZ-5 DAC?
The AD5643RBRMZ-5 is a dual 14-bit DAC.
- Does the AD5643RBRMZ-5 have an on-chip reference?
Yes, it features a 2.5 V on-chip reference with a 5 ppm/°C temperature coefficient.
- Can the AD5643RBRMZ-5 use an external reference?
Yes, the on-chip reference can be disabled at power-up, allowing the use of an external reference.
- What is the output voltage settling time of the AD5643RBRMZ-5?
The output voltage settling time is 3.5 μs to 5 μs for ¼ to ¾ scale settling to ±0.5 LSB.
- What is the slew rate of the AD5643RBRMZ-5?
The slew rate is 1.8 V/μs.
- What is the maximum short circuit current of the AD5643RBRMZ-5?
The maximum short circuit current is 30 mA at VDD = 3 V.
- How fast can data be transferred to the AD5643RBRMZ-5?
Data can be transferred at rates up to 50 MHz.
- What is the power-up time of the AD5643RBRMZ-5?
The power-up time is 4 μs coming out of power-down mode at VDD = 3 V.
- What are some typical applications of the AD5643RBRMZ-5?
Typical applications include industrial automation, medical devices, aerospace and defense, automotive systems, and test and measurement equipment.
