Overview
The AD5623RACPZ-5REEL7, produced by Analog Devices Inc., is a member of the nanoDAC® family. It is a low-power, dual 12-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 AD5623R features an on-chip reference with a 5 ppm/°C temperature coefficient, allowing for a full-scale output of 5 V. It is particularly suited for applications requiring low power consumption and high accuracy, such as portable, battery-operated equipment and defense and aerospace applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| VDD | 2.7 | 3.6 | 5.5 | V | Operating Supply Voltage |
| IDD (Normal Mode) | 200 | 425 | 900 | µA | Internal reference off/on, VDD = 2.7 V to 3.6 V |
| IDD (All Power-Down Modes) | 0.2 | 1 | - | µA | Both DACs powered down, VDD = 2.7 V to 3.6 V |
| Output Voltage Settling Time | 3 | 4.5 | - | µs | ¼ to ¾ scale settling to ±0.5 LSB |
| Slew Rate | - | 1.8 | - | V/µs | - |
| Input Current | - | ±2 | - | µA | All digital inputs |
| Input Low Voltage (VINL) | 0.8 | - | - | V | VDD = 3 V |
| Input High Voltage (VINH) | - | 2 | - | V | VDD = 3 V |
| Package Type | - | - | - | 10-Lead LFCSP (3mm x 3mm) | - |
Key Features
- Low Power Consumption: Ideal for battery-operated and portable equipment with current consumption as low as 200 µA in normal mode and 0.2 µA in power-down mode.
- On-Chip Reference: Features a 5 ppm/°C reference, allowing for full-scale outputs of 2.5 V or 5 V, and the ability to use an external reference if needed.
- Guaranteed Monotonicity: Ensures that the output voltage always increases or remains constant with an increase in the digital input code.
- Power-On Reset and Power-Down Feature: Ensures the DAC output powers up to 0 V and remains there until a valid write takes place, and reduces current consumption significantly in power-down mode.
- High-Speed Serial Interface: Compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 50 MHz.
- Precision Output Amplifier: Enables rail-to-rail output swing.
Applications
- Portable and Battery-Operated Equipment: Due to its low power consumption, it is ideal for devices that require long battery life.
- Defense and Aerospace: The AD5623R-EP model supports defense and aerospace applications, adhering to AQEC standards.
- Industrial Automation: Suitable for applications requiring high precision and reliability in industrial settings.
- Medical Devices: Can be used in medical equipment where precision and low power consumption are critical.
Q & A
- What is the operating supply voltage range of the AD5623R?
The AD5623R operates from a single 2.7 V to 5.5 V supply.
- What is the current consumption of the AD5623R in normal mode?
The current consumption is typically 200 µA to 425 µA with the internal reference off, and up to 900 µA with the internal reference on.
- What is the settling time for the output voltage of the AD5623R?
The output voltage settling time is typically 4.5 µs for a ¼ to ¾ scale change to ±0.5 LSB.
- Does the AD5623R have an on-chip reference?
Yes, the AD5623R has an on-chip reference with a 5 ppm/°C temperature coefficient.
- What is the package type of the AD5623RACPZ-5REEL7?
The package type is a 10-Lead LFCSP (3mm x 3mm).
- Is the AD5623R compatible with standard serial interfaces?
Yes, it is compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards.
- What is the power-down current consumption of the AD5623R?
The power-down current consumption is typically 0.2 µA to 1 µA.
- Does the AD5623R support defense and aerospace applications?
Yes, the AD5623R-EP model supports defense and aerospace applications, adhering to AQEC standards).
- What is the slew rate of the AD5623R?
The slew rate is typically 1.8 V/µs).
- Is the AD5623R guaranteed monotonic?
Yes, the AD5623R is guaranteed monotonic by design).
