Overview
The AD5623RBCPZ-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 options for 1.25 V or 2.5 V references, providing full-scale outputs of 2.5 V or 5 V, respectively. The device is particularly suited for portable, battery-operated equipment due to its low power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| VDD | 2.7 | 3.6 | 5.5 | V | 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 | 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 | |||
| Reference Voltage | 1.25 | 2.5 | V | 5 ppm/°C | |
| Full-Scale Output | 2.5 | 5 | V | ||
| Temperature Range | -40 | 105 | °C | B grade |
Key Features
- Low Power Consumption: Ideal for portable, battery-operated equipment with current consumption as low as 200 µA in normal mode and 0.2 µA in power-down mode.
- On-Chip Reference: Options for 1.25 V or 2.5 V references with 5 ppm/°C temperature drift, allowing for full-scale outputs of 2.5 V or 5 V.
- 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: The DAC output powers up to 0 V and remains there until a valid write takes place. Power-down mode reduces current consumption significantly.
- Versatile Interface: Supports standard SPI, QSPI, MICROWIRE, and DSP interface standards with clock rates up to 50 MHz.
- Rail-to-Rail Output Swing: Enabled by the on-chip precision output amplifier.
- Compact Packaging: Available in 10-lead LFCSP (3mm x 3mm) and 10-lead MSOP packages.
Applications
- Portable and Battery-Operated Equipment: Due to its low power consumption, it is ideal for devices that require long battery life.
- Industrial Control Systems: Suitable for applications requiring precise analog output control.
- Aerospace and Defense: The AD5623R-EP model supports defense and aerospace applications, adhering to AQEC standards.
- Medical Devices: Can be used in medical equipment where high precision and reliability are critical.
- Automotive Systems: Applicable in automotive systems that require robust and precise analog output.
Q & A
- What is the operating voltage range of the AD5623RBCPZ-5REEL7?
The AD5623RBCPZ-5REEL7 operates from a single 2.7 V to 5.5 V supply.
- What is the resolution of the AD5623RBCPZ-5REEL7?
The AD5623RBCPZ-5REEL7 is a dual 12-bit DAC.
- What are the options for the on-chip reference voltage?
The on-chip reference voltage options are 1.25 V and 2.5 V, both with a 5 ppm/°C temperature drift.
- How does the power-on reset feature work?
The power-on reset circuit ensures the DAC output powers up to 0 V and remains there until a valid write takes place.
- What is the maximum clock rate for the serial interface?
The serial interface supports clock rates up to 50 MHz.
- What are the available package options for the AD5623RBCPZ-5REEL7?
The device is available in 10-lead LFCSP (3mm x 3mm) and 10-lead MSOP packages.
- Is the AD5623RBCPZ-5REEL7 suitable for aerospace and defense applications?
Yes, the AD5623R-EP model supports defense and aerospace applications, adhering to AQEC standards.
- What is the current consumption in power-down mode?
The current consumption in power-down mode is as low as 0.2 µA.
- Does the AD5623RBCPZ-5REEL7 support rail-to-rail output swing?
Yes, the on-chip precision output amplifier enables rail-to-rail output swing.
- What is the temperature range for the B grade of the AD5623RBCPZ-5REEL7?
The temperature range for the B grade is -40°C to +105°C.
